Equipment selection support method, equipment selection support system, and program

Abstract

To provide an equipment selection support method for properly supporting selection of air-conditioning equipment to be introduced to a building with ease.SOLUTION: An equipment selection support method includes: a first selection step of selecting first rooms from among rooms of a building, the first rooms satisfying the condition that the maximum thermal load per year is high; a first acquisition step of acquiring a first maximum thermal load calculated, for each first room selected in the first selection step, by a first calculation method which is higher in accuracy than a second calculation method; a second acquisition step of acquiring a second maximum thermal load calculated, for each of second rooms not selected in the first selection step, by the second calculation step; and an output step which outputs first maximum thermal load information indicating the first maximum thermal load for the first rooms, and second maximum thermal load information indicating the second maximum thermal load for the second rooms.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a facility selection support method, a facility selection support system, and a program.

Background Art

[0002] Patent Document 1 discloses a technique for proposing a combination of energy-related devices used in a target area such as a house, a commercial building, a factory, a store, etc. Patent Document 1 discloses, as a combination of energy-related devices, air-conditioning devices, hot water supply devices, ventilation devices, lighting devices, water supply use devices, energy supply devices for power generation facilities, constituent devices of a cogeneration system, etc.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present disclosure provides a facility selection support method, a facility selection support system, and a program that can conveniently and appropriately support the selection of air conditioning facilities to be introduced into a building.

Means for Solving the Problems

[0005] The facility selection support method in the present disclosure is an introduction plan support method for supporting the selection of air conditioning facilities to be introduced into a building. The method includes a first selection step of selecting a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building, a first acquisition step of acquiring, for each of the first rooms selected in the first selection step, a first maximum heat load that is a heat load calculated by a first calculation method with higher calculation accuracy than a second calculation method and is the maximum heat load during the year, a second acquisition step of acquiring, for each of the second rooms not selected in the first selection step, a second maximum heat load that is a heat load calculated by the second calculation method and is the maximum heat load during the year, and an output step of outputting, for the first room, first maximum heat load information indicating the first maximum heat load acquired in the first acquisition step, and outputting, for the second room, second maximum heat load information indicating the second maximum heat load acquired in the second acquisition step.

[0006] In addition, the facility selection support system in the present disclosure is a facility selection support system for supporting the selection of air conditioning facilities to be introduced into a building. The system includes a first selection unit that selects a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building, a first acquisition unit that acquires, for each of the first rooms selected by the first selection unit, a first maximum heat load that is a heat load calculated by a first calculation method with higher calculation accuracy than a second calculation method and is the maximum heat load during the year, a second acquisition unit that acquires, for each of the second rooms not selected by the first selection unit, a second maximum heat load that is a heat load calculated by the second calculation method and is the maximum heat load during the year, and an output unit that outputs, for the first room, first maximum heat load information indicating the first maximum heat load acquired by the first acquisition unit, and outputs, for the second room, second maximum heat load information indicating the second maximum heat load acquired by the second acquisition unit.

[0007] In addition, the program in the present disclosure causes a processor of a terminal device that supports the selection of air conditioning equipment to be introduced into a building to function as a first selection unit that selects a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building, a first acquisition unit that acquires a first maximum heat load that is a heat load calculated by a first calculation method with higher calculation accuracy than a second calculation method and is the maximum heat load during the year for each of the first rooms selected by the first selection unit, a second acquisition unit that acquires a second maximum heat load that is a heat load calculated by the second calculation method and is the maximum heat load during the year for each of the second rooms not selected by the first selection unit, and an output unit that outputs first maximum heat load information indicating the first maximum heat load acquired by the first acquisition unit for the first room and outputs second maximum heat load information indicating the second maximum heat load acquired by the second acquisition unit for the second room.

Advantages of the Invention

[0008] The equipment selection support method, equipment selection support system, and program in the present disclosure can conveniently and appropriately support the selection of air conditioning equipment to be introduced into a building.

Brief Description of the Drawings

[0009]

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Mode for Carrying Out the Invention

[0010] (Knowledge, etc. on which the present disclosure is based) When the inventors came up with the present disclosure, there was a technology for determining air conditioning equipment to be introduced into a building. Conventionally, in the design of air conditioning equipment for a building, the selection of air conditioning equipment to be introduced into the building has been carried out. In the selection of air conditioning equipment, it is necessary for the selector to grasp the maximum heat load for each room in the building. This is because the selector can appropriately select the air conditioning equipment to be introduced by grasping how much heat quantity the air conditioning equipment should process for each room.

[0011] However, conventionally, since the maximum heat load that the selector can grasp is a value obtained by a method with low calculation accuracy, there is a possibility that the selector cannot grasp the accurate maximum heat load. In particular, for rooms with a high actual maximum heat load, it is more difficult to grasp the accurate maximum heat load due to the error in calculation accuracy. Here, it is conceivable to obtain the maximum heat load for all rooms in the building by a method with high calculation accuracy, but the higher the calculation accuracy, the more time (for example, the time for information collection required for calculation, the input time to the calculation tool, the calculation time of the calculation tool, etc.) is required for obtaining the maximum heat load, and there is a problem that the maximum heat load cannot be presented to the selector promptly, and there is a possibility that the selector cannot promptly select the air conditioning equipment. The inventors discovered this problem and came to constitute the subject matter of the present disclosure in order to solve the problem. Therefore, the present disclosure provides a system for assisting in the selection of air conditioning equipment to be introduced into a building in a convenient and appropriate manner, an introduction plan support system, and a program.

[0012] Hereinafter, embodiments will be described in detail with reference to the drawings. However, detailed descriptions may be omitted more than necessary. For example, detailed descriptions of well-known matters may be omitted, or duplicate descriptions of substantially the same configurations may be omitted. Note that the attached drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0013] (Embodiment 1) [1-1. Configuration] [1-1-1. Configuration of Equipment Selection Support System] Referring to FIG. 1, the outline of the equipment selection support system 1000 will be described. FIG. 1 is a diagram showing the outline of the equipment selection support system 1000.

[0014] The equipment selection support system 1000 is a system that supports the selection of the air conditioning equipment 1 to be introduced into the building BL. The equipment selection support system 1000 includes a terminal device 2 and a server device 3, and provides an equipment selection support service for supporting the selection of the air conditioning equipment 1.

[0015] The equipment selection support system 1000 of the present embodiment supports the selection of the air conditioning equipment 1 to be introduced into the newly constructed building BL1, and also supports the selection of the air conditioning equipment 1 to be introduced into the existing building BL2. In FIG. 1, the newly constructed building BL1 is shown by a dotted line, and the existing building BL2 is shown by a solid line.

[0016] The terminal device 2 is a PC (Personal Computer). In FIG. 1, a laptop PC is exemplified as the terminal device 2, but the terminal device 2 may be a desktop PC, a tablet PC, or a smartphone.

[0017] The server device 3 is a device that processes information using devices connected to the network NW as clients. The network NW includes the Internet, telephone networks, and other communication networks. In FIG. 1, the server device 3 is represented by one block, but this does not necessarily mean that the server device 3 is composed of a single device.

[0018] Examples of the building BL include houses, offices, warehouses, stores, factories, school buildings, and inns. In the present embodiment, non-residential buildings such as commercial buildings are exemplified as the building BL.

[0019] Examples of the air conditioning equipment 1 introduced into the building BL include air conditioners having indoor units and outdoor units, and ventilation devices. In the present embodiment, an air conditioner is exemplified as the air conditioning equipment 1 introduced into the building BL, but the air conditioning equipment 1 introduced into the building BL may include a ventilation device. Note that the ventilation device may or may not have a total heat exchanger that performs heat exchange between the air supplied from the outside to the inside and the air exhausted from the inside to the outside. Also, the ventilation mode of the ventilation device may be any of the first type of ventilation, the second type of ventilation, and the third type of ventilation. Further, the indoor unit is configured to include a temperature sensor, a humidity sensor, and a floor temperature sensor, and measure and record the thermal environment of the indoor temperature and humidity in time series. The outdoor unit is configured to include a temperature sensor and a humidity sensor that measure the outdoor temperature and humidity. Note that the above-mentioned respective sensors may be provided in a device independent of the air conditioner (for example, a ventilation device, a remote control, or a measuring device).

[0020] When there is a selection request from the selection requester P2, the selector P1 uses the terminal device 2 to select the air conditioning equipment 1 to be introduced into the building BL. Note that the selector P1 is a person who formulates the air conditioning equipment 1, and for example, may be a person who specializes in formulating the air conditioning equipment 1, or a person who has built or designed the building BL. Also, examples of the selection requester P2 include the owner of the building BL and a person who has been entrusted with management work by the owner.

[0021] When formulating the air conditioning equipment 1, the selector P1 uses the terminal device 2. The selector P1 inputs the design data D1 into the terminal device 2. The design data D1 input into the terminal device 2 includes the building information J11. The building information J11 is information about the building BL. In the building information J11, the location of the building BL, the use of the building BL, the type of building materials of the building BL, the type of fittings of the building BL, etc. are recorded. Also, for each room in the building BL, the building information J11 includes information related to the heat load. The information related to the heat load is the location of the room in the building BL, the floor number of the room (information indicating which floor in the multi-story building BL), the floor area of the room, the ceiling height, the floor height, the number of windows in the room, the area of the windows in the room, the direction where the windows are installed, the material of the part of the building BL (for example, the heat insulation rate, thickness, area, etc.) such as windows, outer walls, roofs, etc., the occupancy ratio (the ratio occupied by people relative to the floor area), the heat generation amount of the lighting equipment set in the room, the heat generation amount of the equipment other than the lighting equipment installed in the room, etc. Note that the location of the room, the floor number of the room, the floor area of the room, the number of windows in the room, the area of the windows in the room, the direction where the windows are installed, and the material of the part of the building BL are information related to the influence of solar radiation.

[0022] In addition, the design data D1 may include the equipment information J12. The equipment information J12 records the type and number of the electrical equipment 5 to be introduced into the building BL, etc.

[0023] As described above, based on the request from the requester P2, the selector P1 selects the air conditioning equipment 1 for the newly constructed building BL1. Also, based on the request from the requester P2, the selector P1 selects the air conditioning equipment 1 for the existing building BL2. That is, the work of selecting the air conditioning equipment 1 is a work performed for both the newly constructed building BL1 and the existing building BL2.

[0024] When the selection work is performed for the newly constructed building BL1, the terminal device 2 displays the first screen G1. The first screen G1 will be described later. The selection work for the newly constructed building BL1 may include the review work of the selected air conditioning equipment 1. When this review work is performed, the terminal device 2 displays the second screen G2 or the third screen G3. As will be clarified later, the second screen G2 and the third screen G3 display the maximum heat load obtained by simulation and the maximum heat load obtained by the heat load calculation method defined by the building equipment design standard. The selector P1 analyzes the maximum heat loads of both by using the second screen G2 or the third screen G3, and reviews the selected air conditioning equipment 1. Note that for the newly constructed building BL1, after the selection of the air conditioning equipment 1, the design work of the refrigerant piping, power supply, and control lines of the air conditioner is performed.

[0025] For the selection work for the existing building BL2, first, the review work of the introduced air conditioning equipment 1 is performed. And in the selection work for the existing building BL2, the selection of the air conditioning equipment 1 is performed regarding the air conditioning equipment 1 to be reselected in the review work. When the air conditioning equipment 1 is reviewed for the existing building BL2, if the terminal device 2 cannot obtain the operation data D2 of the air conditioning equipment 1 introduced into the existing building BL2, the second screen G2 or the third screen G3 is displayed. On the other hand, when the air conditioning equipment 1 is reviewed for the existing building BL2, if the terminal device 2 can obtain the operation data D3 of the air conditioning equipment 1 introduced into the existing building BL2, the fourth screen G4 described later is displayed. Also, when the selection of the air conditioning equipment 1 is performed for the existing building BL2, the terminal device 2 displays the first screen G1 in the same manner as for the newly constructed building BL1. Note that for the existing building BL2, after the selection of the air conditioning equipment 1, the design work of the refrigerant piping, power supply, and control lines of the air conditioner is performed. In particular, for the existing building BL2, after the selection of the air conditioning equipment 1, the advisability of reusing the refrigerant piping is considered. For the method of selecting an air conditioner model, for both new installations and existing ones, the outdoor units are classified based on the room usage and orientation. The capacity of the outdoor unit is selected from the peak heat load of the entire outdoor unit system. Specifically, the outdoor unit is selected from the maximum value of the sum of the maximum heat load calculation results for each time. Also, the capacity of the outdoor unit may be set equal to the sum of the capacities of the indoor units. In addition, check the correction factors due to the refrigerant pipe length and the height difference between the indoor and outdoor units in the manufacturer's technical data of the target model and reflect them in the heat load calculation results. As design safety factors, other factors such as aging factor, capacity compensation factor, correction due to outdoor air temperature, correction due to indoor suction air temperature, intermittent operation factor, margin factor, and blower load factor may also be reflected in the heat load calculation results. The indoor units are designed in a configuration where multiple small-capacity indoor units are arranged so as not to over-restrict the capacity of the indoor units for the heat load to be processed in each room.

[0026] In addition, when the terminal device 2 can acquire the operation data D3, the operation data D3 is stored in the server device 3. The operation data D3 is data indicating the operation status of the air conditioning equipment 1. As data indicating the operation status of the indoor unit, there are set temperature, suction temperature of the indoor unit, blowing temperature of the indoor unit, blowing air volume of the indoor unit, operation time, thermo-on / thermo-off. As data indicating the operation status of the outdoor unit, there are operation mode (cooling / heating), operation time, outdoor air temperature, rotation speed of the compressor, suction pressure and suction temperature of the compressor, discharge pressure and discharge temperature of the compressor, liquid pipe temperature of the heat exchanger, gas pipe temperature of the heat exchanger, outlet temperature of the heat exchanger, power consumption of the outdoor unit, various sensor values of the above-mentioned indoor and outdoor units, heat load processed by the indoor and outdoor units, and COP (operation efficiency) are recorded. These data also include data used in the methods of data analysis techniques described later (air enthalpy method for indoor units and compressor curve method for outdoor units). The air conditioner of the present disclosure mainly assumes packaged air conditioners (VRF, GHP, PAC, etc.), and its application to central air conditioners is also assumed.

[0027] The server device 3 acquires the operation data D3 from the air conditioning equipment 1 installed in the existing building BL2 or the management device that manages the air conditioning equipment 1 at predetermined intervals (for example, 1 hour; data at 1-minute intervals is required for detailed analysis of the operation status), and cumulatively stores the acquired operation data D3, ideally for at least one year or more. It is preferable to have data at 1-hour intervals for at least about two weeks each in summer, winter, and the intermediate period. The server device 3 stores the acquired operation data D3 for each room in the existing building BL2. Then, when requested from the terminal device 2, the server device 3 transmits the stored operation data D3 to the terminal device 2 for each room in the building BL2.

[0028] [1-1-2. Configuration of the Terminal Device] FIG. 2 is a diagram showing the configuration of the terminal device 2. The terminal device 2 includes a control device 20, a communication unit 21, a display 22, and an input unit 23.

[0029] The control device 20 is a device that controls each part of the terminal device 2. The control device 20 includes a processor 200 such as a CPU (Central Processing Unit) or an MPU (Micro Processor Unit), a memory 220, and an interface circuit. Note that other devices and sensors included in the terminal device 2 are connected to this interface circuit.

[0030] The memory 220 is a memory that stores programs and data. The memory 220 stores a program 221, first simulation model data 222, second simulation model data 223, third simulation model data 224, and data to be processed by the processor 200. The memory 220 has a non-volatile storage area. In addition, the memory 220 includes a volatile storage area that constitutes the work area of the processor 200. The memory 220 is composed of, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory).

[0031] The program 221 is a program that supports the selection of the air conditioning equipment 1 to be introduced into the building BL.

[0032] The first simulation model data 222 is data indicating the first simulation model. The first simulation model is a model that takes as input the location of the building BL recorded in the building information J11 and the information related to the influence of solar radiation included in the building information J11, and outputs at least either the hottest day or the coldest day of the year at the input location of the building BL. The first simulation model of the present embodiment outputs both days. Note that the hottest day and the coldest day of the year are merely examples, and the hottest day and the coldest day when the indoor temperature is the highest and the lowest when the air conditioner is not operating during the year may also be the output targets.

[0033] The second simulation model data 223 is data indicating the second simulation model. The second simulation model is a model that takes the date and the building information J11 as input and outputs the maximum heat load on the input date.

[0034] The third simulation model data 224 is data indicating the third simulation model. The third simulation model is a model that outputs the time change of the indoor temperature on the input date when the type of indoor unit, the type of outdoor unit, the set temperature, and the date are input. The time change of the indoor temperature output by the third simulation model is the time change of the indoor temperature when the air conditioning is operated at the set temperature input by the input indoor unit and outdoor unit.

[0035] Note that, as the first simulation model, the second simulation model, and the third simulation model, for example, simulation models such as EnergyPlus, TRANSYS, and BEST are used. Also, the three simulation models of the first simulation model, the second simulation model, and the third simulation model may be configured as one simulation model and in a form of executing one simulation. Note that these simulation models are composed of a building model, a solar radiation model, a human body heat generation model, a lighting device heat generation model, a device heat generation model, an air conditioner device model, a ventilation device model of a total heat exchanger, and the like. More specifically, in these simulation models, for the solar radiation model and the weather model, and for each room in the building (building model) equipped with a plurality of rooms and in which an air conditioner is installed, a human body heat generation model, a lighting device heat generation model, a device heat generation model, an air conditioner device model, a ventilation device model of a total heat exchanger, and the like are defined. Note that when targeting stores and restaurants, a heat generation model of kitchen equipment, a ventilation device model of an exhaust fan, a ventilation model of a range hood, and the like may be considered in these simulation models.

[0036] Here, the power consumption in the device model of the air conditioner that accounts for a large amount of power consumption in the process related to the air conditioning equipment 4 and the calculation method of the heat load (cooling capacity, heating capacity) processed by the air conditioner will be described. The device model of the air conditioner is composed of the following formulas (1) to (4). Q = F(ΔT1) ··· (1) Q = ρ × Cp × Vol × ΔT2 ··· (2) Load factor = Q ÷ rated capacity value of the outdoor unit ··· (3) Power consumption = Q ÷ COP ··· (4) In formulas (1) to (4), Q is the cooling capacity when the air conditioner is in cooling mode and the heating capacity when the air conditioner is in heating mode. In formula (1), F() obtains Q by making a table lookup association according to ΔT1. The value of Q obtained by F() is associated with ΔT1 and is a table showing the relationship between ΔT1 and Q created based on the minimum capacity, rated capacity, maximum capacity, etc. of the selected model. Specifically, it is created with reference to the specifications of the equipment of the actual air conditioner, the equipment configuration, the control logic, etc. In formula (1), ΔT1 is the difference between the set temperature and the sensor value, and the sensor value is the suction temperature of the indoor unit. Instead of the suction temperature, when the indoor unit can detect the floor surface temperature, it may be the difference between the set temperature and the floor surface temperature. In formula (2), ΔT2 is the difference between the supply air temperature and the sensor value. During heating, it is the supply air temperature minus the sensor value, and during cooling, it is the sensor value minus the supply air temperature. In formula (2), ρ is the density of air, Cp is the specific heat of air, and Vol is the supply air volume and is a constant value.

[0037] The processing content of the equipment model of the air conditioner performs the calculations of (1) to (4), and when the calculation of (4) is completed, it returns to the calculation of (1). First, Q is calculated by formula (1). In the calculation of Q by formula (1), ΔT1 is obtained based on the information recorded in the operation data D3, and the capacity corresponding to ΔT1 is set as Q. Next, the Q obtained by formula (1) is substituted into formula (2) to calculate the supply air temperature that constitutes ΔT2. The Q calculated by formula (1) is substituted into the left side of formula (3) to obtain the load factor. Next, from the relationship diagram between the load factor and COP, the COP corresponding to the load factor calculated by formula (3) is obtained. Then, the Q obtained by formula (1) and the obtained COP are substituted into formula (4), and the left side of formula (4) is calculated as the power consumption corresponding to the current load factor. Note that the characteristics of the relationship diagram between the load factor and COP are defined for each model of the air conditioner, and the relationship diagram between the load factor and COP is determined by specifying the rated COP and the rated power consumption of the air conditioner in the equipment model of the air conditioner. Note that the relationship diagram between the load factor and COP may be determined separately for cooling and heating. As the equipment model of the air conditioner, other simulation conditions such as the operation mode (cooling, heating, dry), the set temperature, and the set air volume are given.

[0038] The communication unit 21 includes communication hardware such as a communication circuit that conforms to a predetermined communication standard, and communicates with each device connected to the network NW.

[0039] The display 22 is composed of elements such as liquid crystal, LED (Light Emitting Diode), and OLED (Organic LED). The display 22 displays various information according to the control of the control device 20.

[0040] The input unit 23 includes an interface circuit that connects to devices such as operation switches, touch input panels, mice, and keyboards, detects the input operations of the selector P1, and outputs the detection results to the processor 200.

[0041] By reading and executing the program 221 stored in the memory 220, the processor 200 functions as a first selection unit 201, a first acquisition unit 202, a second acquisition unit 203, a second selection unit 204, a third acquisition unit 205, a third selection unit 206, a fourth selection unit 207, a fourth acquisition unit 208, a fifth acquisition unit 209, a reception unit 210, and a display unit 211. The display unit 211 is an example of the "output unit".

[0042] [1-1-2-1. Selection Unit] The first selection unit 201 selects a room (hereinafter referred to as the "first room") that satisfies the condition of having a high maximum heat load during the year from the rooms in the building BL. The first selection unit 201 refers to the information on the heat load included in the building information J11 for each room and selects the first room. The first selection unit 201 selects a room that satisfies any one of the following first to fourth conditions as the first room. First condition: The floor where the room is located is the top floor in the building BL. Second condition: The influence of solar radiation from at least one of the morning sun, the afternoon sun, and the south direction is large. Third condition: A room that satisfies at least one of the following conditions: a large floor area, a high ceiling, and a large window area. Condition 4: All of the personnel ratio, the heat generation amount of the lighting equipment, and the heat generation amount of equipment other than the lighting equipment are large.

[0043] When the floor number of the room included in the information on the heat load to be referred to by the first selection unit 201 indicates the top floor, the first selection unit 201 selects the room corresponding to the information on the heat load being referred to as the first room on the assumption that the first condition is satisfied.

[0044] When the directions in which the windows are installed included in the information on the heat load to be referred to by the first selection unit 201 are east, west, or south, the first selection unit 201 selects the room corresponding to the information on the heat load being referred to as the first room on the assumption that the first condition is satisfied.

[0045] When the floor area, the height to the ceiling, and the window area included in the information on the heat load to be referred to by the first selection unit 201 are in a room that is equal to or greater than a predetermined value, the first selection unit 201 selects the room corresponding to the information on the heat load being referred to as the first room on the assumption that the first condition is satisfied. Note that this predetermined value is appropriately determined in advance by the results of past heat load calculations, prior tests, simulations, etc.

[0046] When all of the personnel ratio, the heat generation amount of the lighting equipment, and the heat generation amount of equipment other than the lighting equipment included in the information on the heat load to be referred to by the first selection unit 201 are equal to or greater than a predetermined value, the first selection unit 201 selects the room corresponding to the information on the heat load being referred to as the first room on the assumption that the first condition is satisfied. Note that this predetermined value is a different value depending on the personnel ratio, the heat generation amount of the lighting equipment, and the heat generation amount of equipment other than the lighting equipment, and is appropriately determined in advance by comparison with the room use, the defined value of WEBPRO (the defined value of internal heat generation (people, lighting, equipment) in the room), the results of past heat load calculations, prior tests, simulations, etc.

[0047] Note that, in a configuration where a room that satisfies any one of the first to fourth conditions is selected as the first room, the first selection unit 201 may select, as the first room, a room that satisfies any plurality of conditions among the first to fourth conditions. Further, the fourth condition may be a condition indicating that at least any one of the personnel ratio, the calorific value of the lighting equipment, and the calorific value of equipment other than the lighting equipment is large.

[0048] [1-1-2-2. First acquisition unit] For each first room selected by the first selection unit 201, the first acquisition unit 202 acquires the first maximum heat load. The first maximum heat load is the heat load calculated by the first calculation method and is the maximum heat load during the year. The first calculation method is a method with higher calculation accuracy than the second calculation method described later, and in this embodiment, it is a method based on a simulation model.

[0049] The first acquisition unit 202 acquires the first maximum heat load by performing the following processing for each first room selected by the first selection unit 201.

[0050] That is, the first acquisition unit 202 reads out information on the influence of solar radiation from the building information J11, inputs the read information on the influence of solar radiation into the first simulation model, and acquires the hottest day and the coldest day from the first simulation model. Next, the first acquisition unit 202 inputs the acquired hottest day and the building information J11 into the second simulation model to calculate the heat load on the hottest day in the second simulation model. Then, the first acquisition unit 202 acquires the heat load on the hottest day from the second simulation model. Also, the first acquisition unit 202 inputs the acquired coldest day and the building information J11 into the second simulation model to calculate the heat load on the coldest day in the second simulation model. Then, the first acquisition unit 202 acquires the heat load on the coldest day from the second simulation model. Next, when the first acquisition unit 202 acquires the heat load for the hottest day and the coldest day, the first acquisition unit 202 acquires the heat load with the largest value among the acquired heat loads as the first maximum heat load.

[0051] [1-1-2-3. Second acquisition unit] The second acquisition unit 203 acquires the second maximum heat load for each second room not selected by the first selection unit 201. The second maximum heat load is the heat load calculated by the second method and is the maximum heat load during the year. The second calculation method is a method with lower calculation accuracy than the first calculation method, and in this embodiment, it is a method using the heat load calculation method defined by the building equipment design standard. In the heat load calculation defined by the building equipment design standard, for the maximum heat load of cooling, unsteady calculation is performed for hot days in summer, and for the maximum heat load of heating, steady calculation is performed under cold conditions in winter. That is, in the heat load calculation defined by the building equipment design standard, for the maximum heat load of cooling, the calculation results at a plurality of times during the day (9:00, 12:00, 14:00, 16:00, 18:00, etc.) are calculated, but for the maximum heat load of heating, only the maximum heat load is calculated as the calculation result instead of by time. Also, in the heating load calculation defined by the building equipment design standard, internal heat loads due to lighting, human bodies, indoor heat generation, etc. are not included.

[0052] Note that the reason why the second calculation method in this embodiment has lower calculation accuracy than the first calculation method is as follows. The second calculation method in this embodiment does not sufficiently consider the influence of solar radiation (for example, the influence of neighboring buildings), and the number of times for calculating the heat load is at most about 5 even if there are many times in a day. On the other hand, the first calculation means in this embodiment considers the influence of solar radiation, and the heat load is calculated in a predetermined time unit (for example, a unit of 1-minute interval), so the calculation accuracy is higher than that of the second calculation method. On the one hand, since the first calculation method calculates with high accuracy, the calculation time of the heat load in one room may be longer than that of the second calculation method. On the one hand, the first calculation method requires much more information for calculation than the second calculation method, and there is a possibility that the work load of information input for calculation is larger than that of the second calculation method. Also, in the second calculation method, in the calculation based on the standards (for example, the energy consumption per unit) defined in the era when the energy saving standards were loose, an appropriate safety factor may be reflected in the calculation result of the heat load, and the calculation accuracy tends to be low.

[0053] For each second room not selected by the first selection unit 201, the second acquisition unit 203 acquires parameters used in the heat load calculation method defined by the building equipment design standard from the building information J11, and obtains the second maximum heat load based on the acquired parameters and the heat load calculation method defined by the building equipment design standard. The building information J11 includes parameters used in the heat load calculation method defined by the building equipment design standard.

[0054] [1-1-2-4. Second Selection Unit] The second selection unit 204 selects an air conditioner as a candidate for introduction for each room in the building BL. For the first room, the second selection unit 204 selects an air conditioner based on the first maximum heat load acquired by the first acquisition unit 202, and for the second room, the second selection unit 204 selects an air conditioner based on the second maximum heat load acquired by the second acquisition unit 203.

[0055] The selection by the second selection unit 204 will be described below. The second selection unit 204 selects an indoor unit for each first room by referring to the list data. The list data is data in which at least the capacity and type (for example, model number) are recorded for each indoor unit and outdoor unit. The list data is input to the terminal device 2 at a predetermined timing and stored in the memory 220. The second selection unit 204 selects an indoor unit having a capacity equal to or greater than the first maximum heat load acquired by the first acquisition unit 202 by referring to the list data.

[0056] After the selection of the indoor unit is completed, the second selection unit 204 selects an outdoor unit for each selected indoor unit by referring to the list data. In the selection of the outdoor unit, the second selection unit 204 selects an outdoor unit having a capacity equal to or greater than the total capacity of the selected one or more indoor units.

[0057] Note that the second selection unit 204 may correct the capacity according to the suction temperature, defrosting, and the length of the refrigerant pipe when selecting the indoor unit and the outdoor unit.

[0058] Similar to the selection for the first room, the second selection unit 204 selects an air conditioner as an introduction candidate for each second room.

[0059] [1-1-2-5. Third acquisition unit] The third acquisition unit 205 acquires a second maximum heat load for each first room selected by the first selection unit 201. Similar to the second acquisition unit 203, the third acquisition unit 205 acquires the second maximum heat load by the second calculation method.

[0060] [1-1-2-6. Third selection unit] The third selection unit 206 selects the first room in the same way as the first selection unit 201. Note that the third selection unit 206 may acquire the second maximum heat load for each room of the building BL, and select a plurality of upper rooms with a higher acquired second maximum heat load among the rooms of the building BL as the first rooms. In this case, the third selection unit 206 acquires the second maximum heat load in the same way as the second acquisition unit 203.

[0061] [1-1-2-7. Fourth selection unit] The fourth selection unit 207 selects an air conditioner based on the first maximum heat load acquired by the first acquisition unit 202 for each first room selected by the first selection unit 201, and also selects an air conditioner based on the second maximum heat load acquired by the third acquisition unit 205. The fourth selection unit 207 selects an air conditioner in the same way as the second selection unit 204.

[0062] [1-1-2-8. Fourth acquisition unit] The fourth acquisition unit 208 determines whether the air conditioner (hereinafter referred to as the "first air conditioner") selected by the fourth selection unit 207 based on the first maximum heat load and the air conditioner (hereinafter referred to as the "second air conditioner") selected by the fourth selection unit 207 based on the second maximum heat load are different for each first room selected by the first selection unit 201. Then, for each room (hereinafter referred to as the "third room") where the first air conditioner and the second air conditioner are different, the fourth acquisition unit 208 acquires the time change of the indoor temperature for both the first air conditioner and the second air conditioner.

[0063] The fourth acquisition unit 208 performs the following processing for each third room. That is, the fourth acquisition unit 208 reads out information regarding the influence of solar radiation on the corresponding third room from the building information J11, inputs the read information regarding the influence of solar radiation into the first simulation model, and acquires the hottest day and the coldest day from the first simulation model.

[0064] Next, the fourth acquisition unit 208 inputs the type of the indoor unit and the type of the outdoor unit constituting the first air conditioner, the set temperature, and the acquired hottest day into the third simulation model, and acquires the time change of the indoor temperature on the input hottest day (hereinafter referred to as "the first indoor temperature time change"). Also, the fourth acquisition unit 208 inputs the type of the indoor unit and the type of the outdoor unit constituting the second air conditioner, the set temperature, and the acquired hottest day into the third simulation model, and acquires the time change of the indoor temperature on the input hottest day (hereinafter referred to as "the second indoor temperature time change"). Also, the fourth acquisition unit 208 inputs the type of the indoor unit and the type of the outdoor unit constituting the first air conditioner, the set temperature, and the acquired coldest day into the third simulation model, and acquires the time change of the indoor temperature on the input coldest day (hereinafter referred to as "the third indoor temperature time change"). Also, the fourth acquisition unit 208 inputs the type of the indoor unit and the type of the outdoor unit constituting the second air conditioner, the set temperature, and the acquired coldest day into the third simulation model, and acquires the time change of the indoor temperature on the input coldest day (hereinafter referred to as "the fourth indoor temperature time change"). Note that the fourth acquisition unit 208 acquires the time changes of the above four types of indoor temperatures with the set temperature being the same.

[0065] [1-1-2-9. Fifth Acquisition Unit] The fifth acquisition unit 209 communicates with the server device 3 via the communication unit 21, and acquires a plurality of operation data D3 for each room of the building BL from the server device 3. Then, the fifth acquisition unit 209 acquires the peak value of the supply capacity of the air conditioning equipment 1 for each room based on the acquired plurality of operation data D3.

[0066] The fifth acquisition unit 209 acquires the peak value of the supply capacity of the air conditioning equipment 1 by performing the following processing for each room of the building BL. That is, for each piece of operation data D3, the fifth acquisition unit 209 calculates the supply capacity of the air conditioning equipment 1 by, for example, the following formula (5), and acquires the supply capacity with the largest value among the calculated supply capacities as the peak value of the supply capacity of the air conditioning equipment 1.

[0067]

Equation

[0068] In formula (5), Q on the left side indicates the supply capacity of the air conditioning equipment 1. Also, in formula (5), C PA is the specific heat of dry air and is a constant value. Also, in formula (5), C PV is the specific heat of water vapor and is a constant value. Also, in formula (5), t in is the suction temperature of the indoor unit. Also, in formula (5), t out is the blowing temperature of the indoor unit. Also, in formula (5), X in is the absolute humidity of the air sucked in by the indoor unit. Also, in formula (5), X out is the absolute humidity of the air blown out by the indoor unit. Also, in formula (5), ρ is the density of the indoor air and is a constant value. Also, in formula (5), V is the air volume of the fan of the indoor unit. Also, in formula (5), γ is the latent heat of evaporation and is a constant value.

[0069] The fifth acquisition unit 209 substitutes the air volume recorded in the operation data D3 into V in formula (5), and also substitutes the suction temperature recorded in the operation data D3 into t in in formula (5), and substitutes the blowing temperature recorded in the operation data D3 into t OUT in formula (5). Also, the fifth acquisition unit 209 converts the suction humidity recorded in the operation data D3 into absolute humidity, and substitutes the converted suction humidity into X in formula (5) inSubstitute it. Further, the fifth acquisition unit 209 converts the blown humidity recorded in the operation data D3 into absolute humidity, and substitutes the converted blown humidity into X in Equation (5). OUT By the above substitution, the fifth acquisition unit 209 obtains the supply capacity of the air conditioning equipment 1 by calculating Q on the left side.

[0070] Note that the supply capacity of the air conditioning equipment 1 obtained by Equation (5) is the heat load processed by the indoor unit obtained by the enthalpy method for air. The heat load processed by the outdoor unit is the sum of the heat loads of all indoor units connected to the outdoor unit. The fifth acquisition unit 209 calculates the sum of the heat loads processed by the indoor unit for each room based on Equation (5) and determines the peak value.

[0071] Note that when the refrigerant temperature and the refrigerant pressure are recorded in the operation data D3, the fifth acquisition unit 209 may calculate the supply capacity of the air conditioning equipment 1 by calculation using the compressor curve method. The compressor curve method is a method for obtaining the processing load of the indoor unit or the outdoor unit from the operation data D3. More specifically, it is a method for obtaining the maximum heat load by paying attention to the operation status of the outdoor unit. In the compressor curve method, the refrigerant circulation amount is calculated from the operation status of the outdoor unit indicated by the operation data D3 and the compressor characteristic curve, and the supply capacity of the air conditioning equipment 1 is calculated.

[0072] [1-1-2-10. Reception unit] The reception unit 210 receives the operation of the selector P1 via the input unit 23.

[0073] [1-1-2-11. Display unit] The display unit 211 causes the display 22 to display various screens. Regarding the various screens that the display unit 211 causes the display 22 to display, they will be described with reference to the drawings in the operation description of the terminal device 2 with reference to the flowchart.

[0074] [1-2. Operation] Next, the operation of the terminal device 2 related to the selection of the air conditioning equipment 1 will be described. First, with reference to FIG. 3, the operation of the terminal device 2 related to the selection of the air conditioning equipment 1 to be introduced into the building BL will be described. Note that the operation shown in FIG. 3 is an operation that can be executed when the selector P1 makes a selection regardless of whether it is a new building BL1 or an existing building BL2.

[0075] FIG. 3 is a flowchart showing the operation of the terminal device 2. At the start point of the flowchart shown in FIG. 3, when the selector P1 makes a selection for the new building BL1, building information J11 corresponding to the new building BL1 is input to the terminal device 2, and this building information J11 is stored in the memory 220. Also, at the start point of the flowchart shown in FIG. 3, when the selector P1 makes a selection for the existing building BL2, building information J11 corresponding to the existing building BL2 is input to the terminal device 2, and this building information J11 is stored in the memory 220.

[0076] The operation shown in the flowchart of FIG. 3 starts when the reception unit 101 receives an instruction to start displaying the first screen G1.

[0077] The first selection unit 201 refers to the building information J11 stored in the memory 220 and selects a first room from the rooms in the building BL indicated by the building information J11 (step SA1). Step SA1 corresponds to an example of the "first selection step".

[0078] Next, the first acquisition unit 202 refers to the building information J11 stored in the memory 220 and acquires a first maximum heat load for each of the first rooms selected in step SA1 (step SA2). Step SA2 corresponds to an example of the "first acquisition step".

[0079] Next, the second acquisition unit 203 refers to the building information J11 stored in the memory 220 and acquires a second maximum heat load for each of the second rooms not selected in step SA1 (step SA3). Step SA3 corresponds to an example of the "second acquisition step".

[0080] Next, the second selection unit 204 selects an air conditioner (step SA4). In step SA4, the second selection unit 204 selects an air conditioner for each first room based on the first maximum heat load acquired in step SA2, and also selects an air conditioner for each second room based on the second maximum heat load acquired in step SA3. Step SA4 corresponds to an example of the "second selection step".

[0081] Next, the display unit 211 displays the first screen G1 on the display 22 (step SA5). Step SA5 corresponds to an example of the "first output step".

[0082] FIG. 4 is a diagram showing an example of the first screen G1. The first screen G1 displays room information RJ-1 for each room of the building BL. The room information RJ-1 is information regarding the room.

[0083] The room information RJ-1 includes room identification information RJ1. The room identification information RJ1 is information for identifying a room, and indicates a number assigned to the room, the name of the room, and the like.

[0084] The room information RJ-1 includes first calculation method information RJ2 or second calculation method information RJ3. The first calculation method information RJ2 is information indicating the first calculation method as a heat load calculation method. In FIG. 4, the first calculation method information RJ2 is information having a character string "simulation". The second calculation method information RJ3 is information indicating the second calculation method as a heat load calculation method. In FIG. 4, the second calculation method information RJ3 is information having a character string "building equipment design standard base".

[0085] The room information RJ-1 includes first maximum heat load information RJ4 or second maximum heat load information RJ5. The first maximum heat load information RJ4 is information indicating the first maximum heat load. The second maximum heat load information RJ5 is information indicating the second maximum heat load.

[0086] The room information RJ-1 includes the first maximum heat load information RJ4 when including the first calculation method information RJ2, and includes the second maximum heat load information RJ5 when including the second calculation method information RJ3.

[0087] The room information RJ-1 has air conditioner information RJ6. The air conditioner information RJ6 is information indicating an air conditioner as an introduction candidate, and has indoor unit type information RJ61 indicating the type of the indoor unit (for example, model number) and outdoor unit type information RJ62 indicating the type of the outdoor unit (for example, model number).

[0088] Here, step SA6 will be described in detail. The display unit 211 generates room information RJ-1 for each room that the building BL has. In generating the room information RJ-1, the display unit 211 acquires the room identification information RJ1 of the corresponding room from the building information J11 and includes the acquired room identification information RJ1 in the room information RJ-1. Further, in generating the room information RJ-1, when the corresponding room is the first room, the display unit 211 acquires the first maximum heat load from the first acquisition unit 202 and includes the first maximum heat load information RJ4 indicating the acquired first maximum heat load in the room information RJ-1. At this time, the display unit 211 includes the first calculation method information RJ2 in the room information RJ-1. Further, in generating the room information RJ-1, when the corresponding room is the second room, the display unit 211 acquires the second maximum heat load from the second acquisition unit 203 and includes the second maximum heat load information RJ5 indicating the acquired second maximum heat load in the room information RJ-1. At this time, the display unit 211 includes the second calculation method information RJ3 in the room information RJ-1. Further, in generating the room information RJ-1, the display unit 211 acquires the selection result from the second selection unit 204 for the corresponding room and includes the air conditioner information RJ6 indicating the acquired selection result in the room information RJ-1. Then, the display unit 211 generates a first screen G1 in which the generated room information RJ-1 is arranged, and displays the first screen G1 generated by the display 22.

[0089] In the first screen G1 of the present embodiment, one indoor unit and one outdoor unit are displayed for each type. However, a plurality of types may be displayed for each of the indoor unit and the outdoor unit. For example, when the air conditioner selected in step SA4 is a VRF or GHP air conditioner, the first screen G1 may display a plurality of types of indoor units and a plurality of types of outdoor units.

[0090] Next, with reference to FIG. 5, the operation of the terminal device 2 when the selector P1 reviews the air conditioning equipment 1 selected by the selector P1 will be described. The operation shown in FIG. 5 is performed when the selector P1 reviews the air conditioning equipment 1 as a candidate for introduction after the operation shown in FIG. 3 is performed. Note that the operation shown in FIG. 5 is an operation that can be executed when the selector P1 reviews the air conditioning equipment 1 for a new building BL1. Further, the operation shown in FIG. 5 is an operation that can be executed when the selector P1 reviews the air conditioning equipment 1 for an existing building BL2 when the terminal device 2 cannot acquire the operation data D3.

[0091] FIG. 5 is a flowchart showing the operation of the terminal device 2. In the description of FIG. 5, the same steps as those in FIG. 3 are denoted by the same reference numerals, and the detailed description thereof will be omitted as appropriate.

[0092] At the start point of the flowchart shown in FIG. 5, when the selector P1 reviews a new building BL1, building information J11 corresponding to the new building BL1 is input to the terminal device 2, and this building information J11 is stored in the memory 220. At the start point of the flowchart shown in FIG. 5, when the selector P1 reviews an existing building BL2, building information J11 corresponding to the existing building BL2 is input to the terminal device 2, and this building information J11 is stored in the memory 220. Also, the operation shown in the flowchart of FIG. 5 is started when the reception unit 101 receives an instruction to start reviewing the selection of the air conditioning equipment 1.

[0093] The third selection unit 206 refers to the building information J11 stored in the memory 220, and selects a first room from the rooms of the building BL indicated by the building information J11 (step SB1). Next, the processor 200 performs the process of step SA2. Step SB1 corresponds to an example of the "third selection step".

[0094] Next, the third acquisition unit 205 refers to the building information J11 stored in the memory 220, and acquires the second maximum heat load for each of the first rooms selected in step SB1 (step SB2). Step SB2 corresponds to an example of the "third acquisition step".

[0095] Next, the fourth selection unit 207 selects an air conditioner (step SB3). In step SB3, the fourth selection unit 207 selects an air conditioner for each of the first rooms selected in step SB1 based on the first maximum heat load acquired in step SA2, and also selects an air conditioner based on the second maximum heat load acquired in step SB2. Step SB3 corresponds to an example of the "fourth selection step".

[0096] Next, the fourth acquisition unit 208 determines whether there is a third room in the rooms of the building BL based on the selection result of step SB3 (step SB4).

[0097] When the fourth acquisition unit 208 determines that there is no third room (step SB4: NO), the display unit 211 displays the second screen G2 on the display 22 (step SB5). Step SB5 is an example of the "second output step".

[0098] FIG. 6 is a diagram showing an example of the second screen G2. The second screen G2 is a screen displayed when there is no third room in the building BL.

[0099] The second screen G2 displays room information RJ-2 for each of the first rooms selected by the first selection unit 201.

[0100] The room information RJ-2 is information regarding the room. The room information RJ-2 has room identification information RJ1, first calculation method information RJ2, first maximum heat load information RJ4, second calculation method information RJ3, and second maximum heat load information RJ5. Note that the first calculation method information RJ2 and the first maximum heat load information RJ4 are displayed in association with each other on the second screen G2. As an example of this association, for example, as shown in FIG. 6, the first calculation method information RJ2 and the first maximum heat load information RJ4 are displayed side by side. Similarly, the second calculation method information RJ3 and the second maximum heat load information RJ5 are displayed in association with each other on the second screen G2.

[0101] In this way, it becomes possible to quantitatively grasp the differences in the results of different heat load calculation methods. For example, if the result of the heat load calculation by simulation is a highly accurate value close to the actual situation, it becomes possible to grasp the design margin of the method based on the currently commonly used building equipment design standards. Here, the design margin is "(heat load calculation result based on building equipment design standards - heat load calculation result based on simulation) ÷ heat load calculation result based on building equipment design standards × 100%". When the difference in the heat load calculation results between the building equipment design standards and the simulation is large, if the air conditioning equipment 1 is selected in the heat load calculation by simulation, there is a possibility that it cannot follow changes in weather, operation of the air conditioning equipment 1, etc. (for example, problems such as difficulty in cooling and difficulty in warming are likely to occur). Therefore, the selector P1 reviews the simulation conditions so that the design margin becomes smaller. For example, the selector P1 can review the simulation conditions such as operation, add a safety factor to the heat load calculation result based on the simulation model, or review with a model having a larger capacity than the model selected based on the simulation result. As shown in FIG. 7 described later, after comparing the time change of the indoor temperature when air-conditioned by the first air conditioner selected in the simulation and the time change of the indoor temperature when air-conditioned by the second air conditioner selected based on the building equipment design standards, the above-mentioned review work of the design margin may be carried out. The above has been described for the case where the heat load obtained based on the building equipment design standards is larger than the heat load obtained by simulation. Conversely, depending on the simulation conditions, the heat load obtained by simulation may be larger than the heat load obtained based on the building equipment design standards. Even in that case, the result of the heat load calculation is reviewed in the same procedure as above. Instead of simulation, the methods of the data analysis techniques described later (the air enthalpy method for indoor units and the compressor curve method for outdoor units) can be used as highly accurate calculation methods, and the design margin can be obtained from the difference between the building equipment design standards and the methods of this data analysis technique. Also in this case, the result of the heat load calculation is reviewed in the same procedure as above.

[0102] As shown in FIG. 6, when the difference between the first maximum heat load indicated by the first maximum heat load information RJ4 and the second maximum heat load indicated by the second maximum heat load information RJ5 in the room information RJ-2 is equal to or greater than a predetermined value, the room information RJ-2 has the first notification information RJ7 and the second notification information RJ8.

[0103] The first notification information RJ7 is information for notifying a review of the air conditioning equipment 1. In FIG. 6, the first notification information RJ7 is a character string "Review required!". The second notification information RJ8 is information for notifying the degree of necessity of reviewing the air conditioning equipment 1. In the present embodiment, the degree of necessity indicated by the second notification information RJ8 has three levels, namely, any one of "high", "medium", and "low". In FIG. 6, the second notification information RJ8 indicating the degree of "high" is a character string "Necessity: high". Also, in FIG. 6, the second notification information RJ8 indicating the degree of "medium" is a character string "Necessity: medium". Also, in FIG. 6, the second notification information RJ8 indicating the degree of "low" is a character string "Necessity: low". For example, the necessity of review may be set higher as the design margin is larger. Also, the necessity of review may be set higher in consideration of room uses (e.g., offices) that are sensitive to the thermal environment.

[0104] Here, the generation of the second screen G2 will be described in detail. The display unit 211 generates the room information RJ-2 for each first room. In generating the room information RJ-2, the display unit 211 acquires the room identification information RJ1 of the corresponding room from the building information J11 and includes the acquired room identification information RJ1 in the room information RJ-2. Further, in generating the room information RJ-2, the display unit 211 acquires the first maximum heat load acquired in step SA2 from the first acquisition unit 202 and includes the first maximum heat load information RJ4 indicating the acquired first maximum heat load in the room information RJ-2. At this time, the display unit 211 includes the first calculation method information RJ2 in the room information RJ-2. Further, in generating the room information RJ-2, the display unit 211 acquires the second maximum heat load obtained in step SB2 from the second acquisition unit 203, and includes the second maximum heat load information RJ5 indicating the acquired second maximum heat load in the room information RJ-2. At this time, the display unit 211 includes the second calculation method information RJ3 in the room information RJ-1.

[0105] Further, in generating the room information RJ-2, the display unit 211 determines whether the difference between the first maximum heat load acquired in step SA2 and the second maximum heat load acquired in step SB2 is equal to or greater than a predetermined value. If it is equal to or greater than the predetermined value, the display unit 211 includes the first notification information RJ7 in the room information RJ-2. Further, when the display unit 211 includes the first notification information RJ7 in the room information RJ-2, the display unit 211 includes the second notification information RJ8 with content corresponding to the difference between the first maximum heat load acquired in step SA2 and the second maximum heat load acquired in step SB2. Note that the second notification information RJ8 included in the room information RJ-2 notifies that the greater the difference between the first maximum heat load and the second maximum heat load, the higher the degree of necessity.

[0106] Then, the display unit 211 generates a second screen G2 arranging the generated room information RJ-2, and displays the second screen G2 generated by the display 22.

[0107] Returning to the description of step SB4 in FIG. 5, when the fourth acquisition unit 208 determines that there is a third room (step SB4: YES), the fourth acquisition unit 208 acquires the time changes of the above-described four types of indoor temperatures for each third room (step SB6). Step SB6 corresponds to an example of the "fourth acquisition step".

[0108] Next, the display unit 211 displays a third screen G3 on the display 22 (step SB7). Step SB7 is an example of the "second output step".

[0109] FIG. 7 is a diagram showing an example of the third screen G3. The third screen G3 is a screen that is displayed when there is a third room in the building BL2 as compared with the second screen G2.

[0110] The third screen G3 displays room information RJ-3 for each first room selected by the first selection unit 201. The room information RJ-3 includes, similar to the room information RJ-2, room identification information RJ1, first calculation method information RJ2, first maximum heat load information RJ4, second calculation method information RJ3, and second maximum heat load information RJ5. Also, similar to the room information RJ-2, the room information RJ-3 includes first notification information RJ7 and second notification information RJ8 when the difference between the first maximum heat load indicated by the first maximum heat load information RJ4 and the second maximum heat load indicated by the second maximum heat load information RJ5 is equal to or greater than a predetermined value.

[0111] In the third screen G3, the room information RJ-3 corresponding to the third room among the first rooms includes indoor temperature change information CJ. The indoor temperature change information CJ is information indicating the time change of the indoor temperature. In FIG. 7, the room information RJ-3 includes two pieces of indoor temperature change information CJ, i.e., first indoor temperature change information CJ1 and second indoor temperature change information CJ2.

[0112] The first indoor temperature change information CJ1 is information indicating the time change of the indoor temperature on the hottest day and is a graph in FIG. 7. The first indoor temperature change information CJ1 shows the time change of the indoor temperature when air-conditioned by the first air conditioner selected by simulation and the time change of the indoor temperature when air-conditioned by the second air conditioner selected based on the building equipment design standards.

[0113] The second indoor temperature change information CJ2 is information indicating the time change of the indoor temperature on the coldest day and is a graph in FIG. 7. The second indoor temperature change information CJ2 shows the time change of the indoor temperature when air-conditioned by the first air conditioner selected by simulation and the time change of the indoor temperature when air-conditioned by the second air conditioner selected based on the building equipment design standards.

[0114] Here, step SB7 will be described in detail. The display unit 211 generates room information RJ-3 for each first room. In generating the room information RJ-3, the display unit 211 performs the same processing as in the generation of the room information RJ-2 for the same information included in the room information RJ-2.

[0115] When the room information RJ-3 to be generated corresponds to the third room, the display unit 211 acquires from the fourth acquisition unit 208 the time changes of the four types of indoor temperatures acquired in step SB6. The display unit 211 graphs the first indoor temperature time change and the second indoor temperature time change, and generates first indoor temperature change information CJ1 showing the two graphed time changes as one graph. Also, the display unit 211 graphs the third indoor temperature time change and the third indoor temperature time change, and generates second indoor temperature change information CJ2 showing the two graphed time changes as one graph. Then, the display unit 211 includes the two generated indoor temperature change information CJ in the room information RJ-3.

[0116] Then, the display unit 211 generates a third screen G3 arranging the generated room information RJ-3, and displays the third screen G3 generated by the display 22.

[0117] Next, with reference to FIG. 8, the operation of the terminal device 2 when the terminal device 2 can acquire the operation data D3 and the air conditioning equipment 1 of the existing building BL2 is reviewed will be described.

[0118] FIG. 8 is a flowchart showing the operation of the terminal device 2. In the description of FIG. 8, the same steps as in FIG. 3 are denoted by the same reference numerals, and the detailed description thereof is omitted as appropriate. The operation shown in FIG. 8 is an operation executable when the terminal device 2 can acquire the operation data D3 and the selector P1 reviews the air conditioning equipment 1 for the existing building BL2.

[0119] At the start point of the flowchart shown in FIG. 8, building information J11 corresponding to the existing building BL2 is input to the terminal device 2, and this building information J11 is stored in the memory 220. In addition, the operations shown in the flowchart of FIG. 8 are started when the reception unit 101 receives an instruction to start the update work of the air conditioning equipment 1 or an instruction to start displaying the update image G2.

[0120] The processor 200 performs the processes of steps SA1, SA2, and SA3.

[0121] Next, the fifth acquisition unit 209 acquires the peak value of the supply capacity of the air conditioning equipment 1 for each room in the building BL (step SC1). Step SC1 corresponds to an example of the "fifth acquisition step".

[0122] Next, the display unit 211 displays the fourth screen G4 on the display 22 (step SC2). Step SC2 corresponds to an example of the "third output step".

[0123] FIG. 9 is a diagram showing an example of the fourth screen G4. The fourth screen G4 displays the room information RJ-4 for each room in the building BL2. The room information RJ-4 is information about the room. The room information RJ-4 is significantly different from the room information RJ-1 in that it further has peak value information RJ9. The peak value information RJ9 is information indicating the peak value of the supply capacity of the air conditioning equipment 1.

[0124] Here, step SC3 will be described in detail. The display unit 211 generates the room information RJ-4 for each room in the existing building BL2. In generating the room information RJ-4, the display unit 211 performs the same processing as in the generation of the room information RJ-1 for the same information as the various information included in the room information RJ-1. In generating the room information RJ-4, the display unit 211 acquires, from the fifth acquisition unit 209, the peak value of the supply capacity of the air conditioning equipment 1 for the corresponding room, and includes the peak value information RJ9 indicating the acquired peak value in the room information RJ-4.

[0125] Then, the display unit 211 generates a fourth screen G4 arranging the generated room information RJ-4, and displays the fourth screen G4 generated by the display 22.

[0126] In the present disclosure, a mode is assumed in which the maximum value of heat load calculation (for example, the integrated value of the heat load processed by the air conditioner per hour) is used for the model selection of the outdoor unit. For the model selection of the indoor unit, in the case of an existing installation, the model may be selected based on the capacity value of the existing indoor unit, or a new heat load calculation may be performed based on a method according to the building equipment design standard to select the model of the indoor unit. As a variation, the heat load processed by the indoor unit or the outdoor unit may be periodically calculated (for example, the integrated value of the heat load processed by the air conditioner per hour) using the operation data D3 by data analysis techniques (the air enthalpy method for the indoor unit and the compressor curve method for the outdoor unit). This heat load calculation may be performed by a server, a cloud system, a terminal, or a controller of the air conditioner. Among the heat loads obtained by this method, the annual maximum heat load may be specified and assumed as one of the model selection criteria for an air conditioner capable of handling the maximum heat load. Also, in the present disclosure, the object of heat load calculation may be to distinguish between the cooling period and the heating period, and obtain the annual maximum heat load for each period in the cooling period and the heating period. Furthermore, depending on the building BL or the characteristics of the rooms in the building BL (e.g., the magnitude of the heat load and its changes) targeted for heat load calculation, the appropriate use of calculation methods may be determined, taking into account the accuracy required for heat load calculation and the workload of using heat load calculation tools. Also, the applicability of each calculation method may be determined from the perspective of utilizing existing tools instead of significantly modifying the energy simulator.

[0127] [1-3. Effects, etc.] As described above, the equipment selection support method for assisting in the selection of the air conditioning equipment 1 to be introduced into the building BL includes a first selection step of selecting a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building BL. Further, the equipment selection support method includes a first acquisition step of acquiring, for each first room selected in the first selection step, a first maximum heat load that is a heat load calculated by a first calculation method having higher calculation accuracy than a second calculation method and that is the maximum heat load during the year. Further, the equipment selection support method includes a second acquisition step of acquiring, for each second room not selected in the first selection step, a second maximum heat load that is a heat load calculated by the second calculation method and that is the maximum heat load during the year. Further, the equipment selection support method includes an output step of outputting, for the first room, first maximum heat load information RJ4 indicating the first maximum heat load acquired in the first acquisition step, and for the second room, second maximum heat load information RJ5 indicating the second maximum heat load acquired in the second acquisition step.

[0128] According to this, for a room with a high maximum heat load during the year, the selector P1 can grasp the accurate maximum heat load for the whole year. Further, regarding a room with a high maximum heat load during the year, since the maximum heat load for the whole year is acquired by the first calculation method, the maximum heat load for each room of the building BL can be presented to the selector P1 more quickly than when the maximum heat load for the whole year is acquired by the first calculation method for all rooms, and the selector P1 can make a plan promptly. Therefore, the selection of the air conditioning equipment 1 to be introduced into the building BL can be supported conveniently and appropriately.

[0129] The first calculation method is a method based on a simulation model generated by building information J11 regarding the building BL. The second calculation method is a method based on building equipment design standards.

[0130] According to this, using the simulation model and the building equipment design standards, the selection of the air conditioning equipment 1 to be introduced into the building BL can be supported conveniently and appropriately.

[0131] In the first selection step, a first room is selected from the rooms of the building BL based on building information J11 that includes information on the heat load for each room of the building BL.

[0132] According to this, for each room, since the first room is selected in consideration of the information on the heat load of the room, it is possible to accurately select the room with the highest annual maximum heat load from the rooms of the building BL. Therefore, an accurate maximum heat load can be presented to the selector P1, and the selection of the air conditioning equipment 1 to be introduced into the building BL can be more appropriately supported.

[0133] The information on the heat load includes information related to the influence of solar radiation. In the first selection step, based on the information related to the influence of solar radiation, a room is selected as the first room from the rooms of the building BL.

[0134] According to this, for each room, since the first room is selected in consideration of the influence of solar radiation, it is possible to more accurately select the room with the highest annual maximum heat load from the rooms of the building BL. Therefore, an accurate maximum heat load can be presented to the selector P1, and the selection of the air conditioning equipment 1 to be introduced into the building BL can be more appropriately supported.

[0135] In the first acquisition step, the hottest day and the coldest day at the location of the building BL are acquired, and for each first room, the maximum heat load on the hottest day and the coldest day is acquired as the first maximum heat load.

[0136] According to this, by acquiring the maximum heat load on the days when the heat load is assumed to be high as the first maximum heat load, the selector P1 can accurately grasp the annual maximum heat load. Therefore, the selection of the air conditioning equipment 1 to be introduced into the building BL can be more appropriately supported.

[0137] The equipment selection support method includes a second selection step of selecting an air conditioner. In the second selection step, for the first room, an air conditioner is selected based on the first maximum heat load obtained in the first acquisition step, and for the second room, an air conditioner is selected based on the second maximum heat load obtained in the second acquisition step. The first output step also outputs air conditioner information RJ6 indicating the air conditioner selected in the second selection step.

[0138] According to this, the selector P1 can easily grasp what kind of air conditioners are there as introduction candidates. Therefore, the selection of the air conditioning equipment 1 to be introduced into the building BL can be supported more appropriately.

[0139] The equipment selection support method includes a third selection step of selecting a first room from the rooms of the building BL, a third acquisition step of acquiring the second maximum heat load for each first room selected in the third selection step, and a first maximum heat load acquired in the first acquisition step, and a second output step of outputting first notification information RJ7 for notifying a review of the air conditioning equipment for the first room where the difference between the first maximum heat load and the second maximum heat load acquired in the third acquisition step is equal to or greater than a predetermined value.

[0140] According to this, when reviewing the air conditioning equipment 1, the selector P1 can easily grasp which rooms should be the targets for review. Therefore, the selection of the air conditioning equipment 1 to be introduced into the building BL can be supported more appropriately.

[0141] The second output step outputs second notification information RJ8 for notifying that the higher the difference between the first maximum heat load acquired in the first acquisition step and the second maximum heat load acquired in the third acquisition step, the higher the necessity of reviewing the air conditioning equipment 1.

[0142] According to this, when reviewing the air conditioning equipment 1, the selector P1 can easily grasp which rooms should be given priority for review. Therefore, the selection of the air conditioning equipment 1 to be introduced into the building BL can be supported more appropriately.

[0143] In the third selection step, for each room in the building BL, the second maximum heat load is obtained, and among the rooms in the building BL, a plurality of upper rooms with a high obtained second maximum heat load are selected as the first rooms.

[0144] According to this, since a plurality of upper rooms with a high second maximum heat load are selected as the first rooms, rooms with a high maximum heat load during the year can be appropriately selected from the rooms in the building BL.

[0145] The equipment selection support method includes a fourth selection step of selecting an air conditioner and a fourth acquisition step of acquiring the time change of the indoor temperature. In the fourth selection step, for each first room, an air conditioner is selected based on the first maximum heat load acquired in the first acquisition step, and an air conditioner is selected based on the second maximum heat load acquired in the third acquisition step. In the fourth acquisition step, when the air conditioner selected based on the first maximum heat load and the air conditioner selected based on the second maximum heat load are different, for each of the air conditioner selected based on the first maximum heat load and the air conditioner selected based on the second maximum heat load, the set temperature of the air conditioner is made the same, and the time change of the indoor temperature on the hottest day and the coldest day is acquired. The second output step outputs the indoor temperature change information CJ indicating the acquired time change of the indoor temperature together.

[0146] According to this, the coolness of the cooling on the hottest day and the warmth of the heating on the hottest day can be grasped by the selector P1 by comparing the two air conditioners. Therefore, the selection of the air conditioning equipment 1 to be introduced into the building BL can be supported more appropriately.

[0147] The equipment selection support method includes a fifth acquisition step of acquiring the peak value of the supply capacity of the air conditioning equipment 1 based on the operation data D3 of the air conditioning equipment 1 corresponding to the rooms in the existing building BL2. Further, the equipment selection support method includes a third output step of outputting the peak value information RJ9 indicating the peak value acquired in the fifth acquisition step together with the first maximum heat load information RJ4 and the second maximum heat load information RJ5.

[0148] According to this, since the selector P1 can compare the maximum annual heat load grasped before the introduction of the air conditioning equipment 1 with the amount of heat actually processed by the air conditioning equipment 1, in the review of the air conditioning equipment 1 introduced into the existing building BL2, the selector P1 can easily grasp which air conditioning equipment 1 should be reselected. Therefore, the selection of the air conditioning equipment 1 to be introduced into the existing building BL2 can be more appropriately supported.

[0149] An equipment selection support system 1000 for supporting the selection of the air conditioning equipment 1 to be introduced into the building BL, comprising: a first selection unit 201 for selecting a first room from the rooms of the building BL; a first acquisition unit 202 for acquiring a first maximum heat load for each first room selected by the first selection unit 201; a second acquisition unit 203 for acquiring a second maximum heat load for each second room not selected by the first selection unit 201; and a first display unit 211 that outputs first maximum heat load information RJ4 indicating the first maximum heat load acquired by the first acquisition unit 202 for the first room and outputs second maximum heat load information RJ5 indicating the second maximum heat load acquired by the second acquisition unit 203 for the second room.

[0150] According to this, it has the same effect as the effect of the above-described equipment selection support method.

[0151] The program 221 causes the processor 200 of the terminal device 2 for supporting the selection of the air conditioning equipment 1 to be introduced into the building BL to function as a first selection unit 201 for selecting a first room from the rooms of the building BL, a first acquisition unit 202 for acquiring a first maximum heat load for each first room selected by the first selection unit 201, a second acquisition unit 203 for acquiring a second maximum heat load for each second room not selected by the first selection unit 201, and a first display unit 211 that outputs first maximum heat load information RJ4 for the first room and outputs second maximum heat load information RJ5 for the second room.

[0152] According to this, it has the same effect as the effect of the above-described equipment selection support method.

[0153] (Embodiment 2) Next, Embodiment 2 will be described. In Embodiment 2, when the terminal device 2 can acquire the operation data D3, the screen displayed when the selector P1 reviews the air conditioner 1 for the existing building BL2 is different from that in Embodiment 1.

[0154] FIG. 10 is a block diagram showing the configuration of the terminal device 2 in Embodiment 2. As is clear from comparing FIG. 10 with FIG. 2, in Embodiment 2, when the processor 200 reads and executes the program 221, in addition to the functional units of Embodiment 1, it further functions as a sixth acquisition unit 212 and a seventh acquisition unit 213. Also, as is clear from comparing FIG. 10 with FIG. 2, in Embodiment 2, the memory 220 stores the updated second simulation model data 223A.

[0155] The updated second simulation model data 223A is data indicating the updated second simulation model. The updated second simulation model is a model that takes the date and the building information J11 as inputs and outputs the maximum heat load on the input date. The updated second simulation model is a model in which the values set as the air conditioner model and the simulation conditions are set to the values of the reselected air conditioner 1 compared with the second simulation model, and in this embodiment, it is a model in which the equipment model of the air conditioner described above has been updated. Note that the model with the values of the reselected air conditioner 1 set is, for the outdoor unit, the rated cooling and heating capacity (COP) and the rated power consumption of the outdoor unit, and for the indoor unit, it is a model in which the rated power consumption and the rated air volume of the indoor unit are defined, and as simulation conditions, the operation mode (cooling / heating / dry), set temperature, set air volume, simulation period, etc. are given to the indoor unit. The updated second simulation model data 223A is defined by distinguishing between the pre-updated air conditioner model and the post-updated air conditioner model based on the values of the catalog specifications of the air conditioner before and after the update for the above air conditioner model of the second simulation model in the terminal device 2, and is stored in the memory 220.

[0156] The sixth acquisition unit 212 acquires the ratio of the first maximum heat load before and after the selection of the air conditioning equipment 1 introduced into the existing building BL for each first room selected by the first selection unit 201. The sixth acquisition unit 212 performs the same input as the first acquisition unit 202 on the first simulation model and the second simulation model to acquire the first maximum heat load before the selection of the air conditioning equipment 1. Further, the sixth acquisition unit 212 performs the same input as the first acquisition unit 202 on the first simulation model and the updated second simulation model to acquire the first maximum heat load after the selection of the air conditioning equipment 1. Then, the sixth acquisition unit 212 acquires the ratio of the first maximum heat load before and after the selection of the air conditioning equipment 1 introduced into the existing building BL for each first room selected by the first selection unit 201. Note that the ratio is the first maximum heat load after the selection of the air conditioning equipment 1 introduced into the existing building BL ÷ the first maximum heat load before the selection of the air conditioning equipment 1 introduced into the existing building BL.

[0157] The seventh acquisition unit 213 acquires the maximum heat load during the year after the selection of the air conditioning equipment 1 introduced into the existing building BL based on the ratio acquired by the sixth acquisition unit 212 and the peak value acquired by the fifth acquisition unit 209 for each first room selected by the first selection unit 201. The seventh acquisition unit 213 calculates "the ratio acquired by the sixth acquisition unit 212 × the peak value acquired by the fifth acquisition unit 209" for each first room to acquire the maximum heat load during the year after the selection of the air conditioning equipment 1 introduced into the existing building BL. Note that the seventh acquisition unit 213 may obtain the "first maximum heat load before the selection of the air conditioning equipment 1" used in this acquisition calculation from the sixth acquisition unit 212, or may obtain it from the simulation model in the same manner as the sixth acquisition unit 212.

[0158] Next, the operation of the terminal device 2 according to the present embodiment will be described. With reference to FIG. 11, the operation of the terminal device 2 when the terminal device 2 can acquire the operation data D3 and the air conditioning equipment 1 of the existing building BL2 is reviewed will be described.

[0159] FIG. 11 is a flowchart showing the operation of the terminal device 2. In the description of FIG. 11, the same steps as those in FIG. 8 are denoted by the same reference numerals, and the detailed description thereof will be omitted as appropriate. The operation shown in FIG. 11 is an operation executable when the selector P1 reviews the air conditioning equipment 1 for the existing building BL2 when the terminal device 2 can acquire the operation data D3.

[0160] At the start point of the flowchart shown in FIG. 11, building information J11 corresponding to the existing building BL2 is input to the terminal device 2, and this building information J11 is stored in the memory 220. Also, the operation shown in the flowchart of FIG. 11 is started when the reception unit 101 receives an instruction to start the update work of the air conditioning equipment 1 or an instruction to start displaying the update image G2.

[0161] The processor 200 performs the processes of steps SA1, SA2, SA3, and SC1.

[0162] Next, the sixth acquisition unit 212 acquires the ratio of the first maximum heat load before and after the selection of the air conditioning equipment 1 for each first room selected in step SA1 (step SD1). Step SD1 corresponds to an example of the "sixth acquisition step".

[0163] Next, the seventh acquisition unit 213 acquires the maximum heat load in a year after the selection of the air conditioning equipment 1 introduced into the existing building BL for each first room selected in step SA1 (step SD2). Step SD2 corresponds to an example of the "seventh acquisition step".

[0164] Next, the display unit 211 displays the fifth screen G5 on the display 22 (step SD3). Step SD3 corresponds to an example of the "third output step".

[0165] FIG. 12 is a diagram showing an example of the fifth screen G5. The fifth screen G5 displays room information RJ-5 for each room in building BL5. The room information RJ-5 is information regarding the room. The room information RJ-5 is significantly different from the room information RJ-4 in that it further has information J10 indicating the maximum heat load acquired by the seventh acquisition unit 213 for the first room.

[0166] Here, step SD3 will be described in detail. The display unit 211 generates room information RJ-5 for each room in the existing building BL2. In generating the room information RJ-5, the display unit 211 performs the same processing as in the generation of the room information RJ-4 for the same information as the various information included in the room information RJ-4. In generating the room information RJ-5, the display unit 211 acquires, from the seventh acquisition unit 213, the maximum heat load of the corresponding room for the first room, and includes information RJ10 indicating the acquired maximum heat load in the room information RJ-5.

[0167] As described above, the equipment selection support method includes a sixth acquisition step of acquiring, for each first room, the ratio of the first maximum heat load before and after the selection of the air conditioning equipment 1 introduced into the existing building BL, and a seventh acquisition step of acquiring, for each first room, the maximum heat load during the year after the selection of the air conditioning equipment 1 introduced into the existing building BL based on the ratio acquired in the sixth acquisition step and the peak value acquired in the fifth acquisition step. The third output step further outputs the maximum heat load during the year after the selection of the air conditioning equipment 1 acquired in the seventh acquisition step.

[0168] According to this, the maximum annual heat load after the selection of the air conditioning equipment 1 taking into account the operation data D3 can be presented to the selector P1. Since the operation data D3 is taken into account, the influence of temperature unevenness in the room during heating is considered in this maximum heat load, which is a maximum heat load with high accuracy. Therefore, in the review of the air conditioning equipment 1 introduced into the existing building BL2, the selector P1 can accurately grasp the maximum annual heat load when the reselected air conditioning equipment 1 is introduced. Thus, the selector P1 can appropriately select the air conditioning equipment 1 to be introduced into the existing building BL2, and can support the selector P1 more appropriately. Note that temperature unevenness refers to a phenomenon in which warm air accumulates near the ceiling and the area near the floor is cold during heating, which impairs the comfort of the occupants. For this reason, when there is no function (e.g., circulation function) that can stir the warm air near the ceiling during heating, a large amount of power consumption is required to warm the entire room. That is, when the capacity of the air conditioner is low, it is difficult to warm the entire room. Generally, an energy simulator can perform calculations based on the future operation plan of the room and the energy saving performance of the updated air conditioner, but cannot perform calculations considering the phenomenon of temperature unevenness. On the other hand, in the fifth acquisition step of obtaining the heat load processed by the air conditioner based on the operation data of the past air conditioner, it can be obtained by reflecting the operation results such as past temperature unevenness, but cannot reflect the future operation plan of the room after the update of the air conditioner and the energy saving performance of the updated air conditioner. Therefore, based on the ratio obtained in the sixth acquisition step and the peak value obtained in the fifth acquisition step, the seventh acquisition step can obtain the maximum annual heat load after the selection of the air conditioning equipment 1 to be introduced into the existing building BL.

[0169] (Embodiment 3) Next, Embodiment 3 will be described. Compared with Embodiment 1, Embodiment 3 has different contents on the third screen G3.

[0170] FIG. 13 is a diagram showing an example of the third screen G3 according to Embodiment 3. As is clear from comparing FIG. 13 and FIG. 7, in the third screen G3 of the present embodiment, the room information RJ-3 corresponding to the third room in the first room further includes a temperature distribution diagram OB. The temperature distribution diagram OB is a diagram showing the distribution of the surface temperature of the indoor wall surface. Note that the temperature distribution diagram OB may display the temperature distribution in a three-dimensional space. In the present disclosure, a cross-sectional view of the room shows the heat and temperature distribution.

[0171] The processor 200 of the present embodiment further functions as a temperature distribution acquisition unit that acquires the temperature distribution diagram OB by reading and executing the program 221. The temperature distribution acquisition unit is realized by airflow analysis software. In the airflow analysis software, based on the building information J11, similar to the energy simulator, a temperature distribution simulation model (composed of a solar radiation model, wall surface information constituting the third room (for example, the heat transfer coefficient of each structure of the wall, roof, floor, and window and the initial value of the wall surface temperature), an air conditioner model for the third room (for example, the blowing temperature, air volume, and control algorithm of the air conditioner), and an internal heat generation model for the room (people, lighting, equipment)) is defined. By setting simulation conditions similar to the above-described simulation (for example, set temperature, set air volume, simulation period), the temperature distribution acquisition unit executes the temperature distribution simulation model to acquire the temperature distribution diagram OB. Also, for the simulation period, for example, a simulation of the airflow analysis is executed for one day of the hottest day or the coldest day. Note that the data indicating the temperature distribution simulation model is stored in the memory 220. As the airflow analysis software, for example, FlowDesigner or STREAM can be used.

[0172] In the present embodiment, when the room information RJ-3 to be generated corresponds to the third room, the display unit 211 acquires the temperature distribution diagram OB from the temperature distribution acquisition unit. Then, when the room information RJ-3 to be generated corresponds to the third room, the display unit 211 of the present embodiment further includes the temperature distribution diagram OB in the room information RJ-3.

[0173] According to this, by displaying the temperature distribution diagram OB with the airflow analysis software, the influence of temperature unevenness during heating can be presented to the selector P1 from the temperature distribution of the rooms in the building BL, and furthermore, the selection of the selector P1 can be appropriately supported.

[0174] (Other embodiments) As described above, as examples disclosed in the present application, the above-described Embodiments 1, 2, and 3 have been explained. However, the technology in the present disclosure is not limited to this, and can also be applied to embodiments with changes, replacements, additions, omissions, etc. Also, it is possible to combine the respective components described in the above-described Embodiments 1, 2, and 3 to form a new embodiment. Therefore, other embodiments will be exemplified below.

[0175] In the above-described Embodiment 1, as the first calculation method, a method based on a simulation model was exemplified, and as the second calculation method, a method based on building equipment design standards was exemplified. However, if the calculation accuracy of the first calculation method is lower than that of the second calculation method, the first calculation method and the second calculation method may also be the methods of Embodiment 1. For example, any calculation method may be selected from the following five calculation methods for the first calculation method and the second calculation method.

[0176] Calculation method 1: A method using unit heat load. Calculation method 2: A simple calculation method for heating and cooling loads. Calculation method 3: A method based on building equipment design standards. Calculation method 4: A method based on a simulation model. Calculation method 5: A method for calculating the supply capacity of air conditioning equipment (compressor curve method).

[0177] The above Calculation method 1 is a method of obtaining the maximum heat load by multiplying the unit heat load by the floor area of the room. As the unit heat load, values determined by various manufacturers of the air conditioning equipment 1 are adopted. The above Calculation method 2 is a method created according to the Air Conditioning and Sanitary Engineering Standard SHASE-S112-2009. Calculation methods 3 to 5 are the methods described in the above-described Embodiment 1. Note that the calculation method 1 has a lower calculation accuracy than the calculation method 2. The calculation method 2 has a lower calculation accuracy than the calculation methods 3 to 4. The calculation method 3 has a lower calculation accuracy than the calculation methods 4 and 5. Note that the calculation method 4 is easily affected by the calculation accuracy according to the simulation conditions. Note that generally, there is a trade-off relationship between the calculation accuracy and the time required for calculation (the time to collect information required for heat load calculation and input it into the calculation tool + calculation time, etc.). Note that the compressor curve method can accurately obtain the heat load processed by the air conditioner before the update, but cannot obtain all the heat load effects on the entire building including solar radiation, etc. That is, the compressor curve method can accurately reflect the actual operation (internal heat generation, outside air introduction, operation results of the air conditioner), but only the heat load processed by the air conditioner, and cannot obtain all the heat load effects on the entire building including solar radiation, etc. The calculation method 4 may be set as high precision and the calculation method 5 may be set as low precision. Conversely, since the accuracy of the simulation may be low depending on the simulation conditions, the definition of high precision and low precision between the calculation method 4 and the calculation method 5 may be reversed. In addition to the above, a calculation method for calculating the maximum design heat load with a higher calculation accuracy than the calculation method 1 or the calculation method 2 may be targeted. Furthermore, as existing tools for heat load calculation, MICRO-PEAK, NewHASP, HASPEE, STABRO, BEST, etc. are known. The realization of the present disclosure may also be achieved by combining these existing tools. In addition, in the case of a new installation, the comparison results of the unit price of similar properties and the specifications of the air conditioner (e.g., the rated capacity and rated power consumption of the outdoor unit) may be presented together with the comparison results of the specifications of the currently installed air conditioner in the case of an existing building. By taking into account the hearing results of the customer's requirements for the thermal environment together with this information, it is possible to easily confirm whether it is possible to downsize the specifications of the air conditioner.

[0178] In other embodiments, the first acquisition unit 202 may specify the opening day after a long holiday for each room of the building BL, and acquire the maximum heat load on the specified opening day as the first maximum heat load. In this other embodiment, operation information is input to the terminal device 2. In this operation information, at least one of the opening days and holidays during the year is recorded for each room of the building BL. In this other embodiment, the first acquisition unit 202 refers to the operation information, specifies the opening day after the longest continuous holiday (e.g., summer vacation, winter vacation), and inputs the specified opening day and the building information J11 into the first simulation model. Then, the first acquisition unit 202 acquires the heat load on the specified opening day from the first simulation model, and acquires the maximum heat load among the acquired heat loads as the first maximum heat load.

[0179] In each of the above-described embodiments, the first acquisition unit 202 is configured to acquire the heat loads on the hottest day and the coldest day. However, in other embodiments, the configuration may be such that the heat load is acquired from the first simulation model for either the hottest day or the coldest day.

[0180] In each of the above-described embodiments, the fourth acquisition unit 208 is configured to acquire the temporal change in the indoor temperature on the hottest day and the coldest day. However, in other embodiments, the configuration may be such that the temporal change in the indoor temperature is acquired for either the hottest day or the coldest day.

[0181] In each of the above-described embodiments, the output modes of each of the "first output step", "second output step", and "third output step" are display. In other embodiments, at least one of these output steps may have another output mode such as print output.

[0182] In the above-described embodiment, in the first acquisition step, the first maximum heat load is acquired for each first room, and in the second acquisition step, the second maximum heat load is acquired for each second room. In other embodiments, in the first acquisition step, that is, the first acquisition unit 202 may be configured to acquire the first maximum heat load for all the rooms in the building BL. Further, in this other embodiment, in the second acquisition step, that is, the second acquisition unit 203 may be configured to acquire the second maximum heat load for all the rooms in the building BL. Note that the method by which these acquisition units acquire the maximum heat load is the same as that in the above-described embodiment. When the building BL has a plurality of rooms, there may be a need to compare and analyze the maximum heat load calculated with high accuracy and the maximum heat load calculated with low accuracy. This need may arise when the calculation time of the maximum heat load with high accuracy is shortened, and the maximum heat load can be promptly presented to the selector P1 even if the maximum heat load with high accuracy and the maximum heat load with low accuracy are calculated collectively for all the rooms in the building BL. In this other embodiment, since the maximum heat load with high accuracy and the maximum heat load with low accuracy are calculated for all the rooms in the building BL, the above need can be met. Further, in this other embodiment, in the first output step, for each room, the first maximum heat load acquired in the first acquisition step and the second maximum heat load acquired in the second acquisition step may be output side by side. The order of arrangement in this output may be in descending order of the first maximum heat load, in descending order of the second maximum heat load, or in descending order of the difference between the first maximum heat load and the second maximum heat load.

[0183] In other embodiments, the air conditioner may have the above-described function of calculating the heat load processed by the indoor unit or the outdoor unit. In this case, the controller or terminal of the air conditioner may be configured to provide the user with information on the operating efficiency (COP) of the air conditioner. Note that COP is obtained by dividing the integrated value of the heat load processed by the outdoor unit per hour by the integrated value of the power consumption of the outdoor unit per hour in the same time period. Using this information, it is possible to easily determine whether the existing building BL is over-specified in the current model selection by comparing it with the rated capacity of the air conditioner. Further, in this case, the indoor unit or another measuring means may be provided with a solar radiation sensor that measures the amount of solar radiation from the window and stores the amount of solar radiation in time series. Thereby, a more realistic evaluation becomes possible by using the actually measured amount of solar radiation in the simulator. Note that generally, the information provided by the extended Amedas provided by the Japan Meteorological Agency is used.

[0184] In the above-described embodiment, the configuration is such that the change in the indoor temperature is presented. In other embodiments, not only the indoor temperature but also the indoor humidity is simulated, and the influence of the selection is evaluated from the viewpoint of the indoor discomfort index. Specifically, when the indoor discomfort index becomes extremely large or when the follow-up of the indoor temperature to the set temperature (the ease of cooling and warming in the room) is slow, the capacity of the air conditioner is re-selected to be larger and the simulation is repeated, and the ease of cooling and warming in the room is re-checked to select the model of the air conditioner. Note that the ventilation device may be set as a simulation condition as a condition for model selection.

[0185] In other embodiments, the selection requester P2 may receive a subsidy from an administrative agency handling the subsidy. In this case, the selection requester P2 submits an application to the administrative agency to receive the subsidy from the selector P1. When submitting this application, the selection requester P2 submits the design data D1 input to WEBPRO and the calculation results of WEBPRO (such as the design primary energy consumption of the entire facility / each facility, Building Energy Index (BEI), etc.) reported by the selector P1. Then, after the building BL is constructed, the selection requester P2 reports the annual energy consumption to the administrative agency, and if the reported energy consumption does not exceed the applied value, the repayment of the given subsidy is waived. That is, consistency is required between the actual amount in the actual operation stage (annual power consumption of the entire facility) and the calculation result of WEBPRO31 in the planning stage (annual design primary energy consumption of Facility 1). In addition, in this other embodiment, although the case where the selection requester P2 can obtain permission for the subsidy from the administrative agency is exemplified, the predetermined entity for which the selection requester P2 can obtain a predetermined permission is not limited to the administrative agency, and the predetermined permission that the selection requester P2 can obtain is not limited to the permission for the subsidy payment.

[0186] Also, in the above other embodiment, the selection requester P2 may be an ESCO (Energy Service Company) operator. That is, the "facility selection support method, facility selection support system, and program" of the present disclosure may be applied to the ESCO business. The ESCO business is a business in which an ESCO operator makes the investment necessary to achieve energy conservation and receives a part of the realized energy conservation effect as a reward from the customer. In the case of this other embodiment, when the selector P1 or the ESCO operator formulates an operation plan and the power consumption of the entire building BL is below a predetermined standard, the ESCO operator obtains a reward from the customer.

[0187] The processor 200 may be constituted by a single processor or may be constituted by a plurality of processors. The processor 200 may also be hardware programmed to implement corresponding functional units. That is, the processor 200 may be constituted by, for example, an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0188] The configurations of the terminal device 2 shown in FIGS. 2 and 10 are examples, and the specific implementation forms are not particularly limited. That is, it is not necessarily required that hardware corresponding to each part be individually implemented, and it is also possible to adopt a configuration in which one processor executes a program to realize the functions of each part. Also, in the above-described embodiments, a part of the functions realized by software may be implemented as hardware, or a part of the functions realized by hardware may be realized by software.

[0189] The step units of the operations shown in FIGS. 3, 5, 8, and 11 are divided according to the main processing contents in order to facilitate the understanding of the operations, and the operations are not limited by the way of dividing the processing units and the names. Depending on the processing contents, it may be further divided into more step units. Also, one step unit may be further divided to include more processes. Also, the order of the steps may be appropriately changed within the scope not obstructing the spirit of the present disclosure.

[0190] Note that the above-described embodiments are for exemplifying the technology in the present disclosure, and various changes, replacements, additions, omissions, etc. can be made within the scope of the claims or the equivalent scope thereof.

[0191] (Supplementary Note) By the description of the above embodiments, the following technology is disclosed.

[0192] (Technology 1) A facility selection support method for assisting in the selection of air conditioning equipment to be introduced into a building, the method including: a first selection step of selecting a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building; a first acquisition step of acquiring, for each of the first rooms selected in the first selection step, a first maximum heat load that is calculated by a first calculation method having higher calculation accuracy than a second calculation method and that is the maximum heat load during the year; a second acquisition step of acquiring, for each of the second rooms not selected in the first selection step, a second maximum heat load that is the heat load calculated by the second calculation method and that is the maximum heat load during the year; and a first output step of outputting first maximum heat load information indicating the first maximum heat load acquired in the first acquisition step for the first rooms and outputting second maximum heat load information indicating the second maximum heat load acquired in the second acquisition step for the second rooms. According to this, for rooms with a high maximum heat load during the year, the selector can grasp the accurate maximum heat load during the year. Further, for rooms with a high maximum heat load during the year, since the maximum heat load during the year is acquired by the first calculation method, the maximum heat load during the year for each of the rooms in the building can be presented to the selector more quickly than when the maximum heat load during the year is acquired by the first calculation method for all rooms, and the selector can make a decision quickly. Therefore, the selection of the air conditioning equipment to be introduced into the building can be supported conveniently and appropriately.

[0193] (Technology 2) The first calculation method is a method based on a simulation model generated from building information regarding the building, the second calculation method is a method based on building equipment design standards, and is also a method of calculating a peak value of the supply capacity of the air conditioning equipment based on operation data of the air conditioning equipment corresponding to the rooms of the existing building. The facility selection support method according to Technology 1. According to this, by using the simulation model and the calculation of the peak value based on the building equipment design standards or operation data, the selection of the air conditioning equipment to be introduced into the building can be supported conveniently and appropriately.

[0194] (Technology 3) The first selection step is the facility selection support method according to Technology 1 or Technology 2, which selects the first room from the rooms of the building based on building information including information on heat load for each room of the building. According to this, for each room, since the first room is selected in consideration of the information on the heat load of the room, it is possible to accurately select the room with the highest maximum heat load during the year from the rooms of the building. Therefore, the accurate maximum heat load can be presented to the selector for each room, and the selection of the air conditioning equipment to be introduced into the building can be more appropriately supported.

[0195] (Technology 4) The information on the heat load includes information related to the influence of solar radiation, and the first selection step is the facility selection support method according to Technology 3, which selects the first room from the rooms of the building based on the information related to the influence of solar radiation. According to this, for each room, since the first room is selected in consideration of the influence of solar radiation, it is possible to more accurately select the room with the highest maximum heat load during the year from the rooms of the building. Therefore, the accurate maximum heat load can be presented to the selector, and the selection of the air conditioning equipment to be introduced into the building can be more appropriately supported.

[0196] (Technology 5) The first acquisition step acquires at least one of the hottest day and the coldest day at the location of the building, and for each first room, acquires the maximum heat load on at least one of the hottest day and the coldest day as the first maximum heat load, which is the facility selection support method according to any one of Technologies 1 to 4. According to this, by acquiring the maximum heat load on the day when the heat load is assumed to be high as the first maximum heat load, the selector can accurately grasp the maximum heat load during the year. Therefore, the selection of the air conditioning equipment to be introduced into the building can be more appropriately supported.

[0197] (Technology 6) The first acquisition step specifies the first business day after the consecutive holidays for each room of the building, and for each first room, acquires the maximum heat load on the specified first business day as the first maximum heat load, which is the facility selection support method according to any one of Technologies 1 to 4. According to this, it has the same effect as the facility selection support method described in Technique 5.

[0198] (Technique 7) A facility selection support method according to any one of Techniques 1 to 6, including a second selection step of selecting an air conditioner, wherein in the second selection step, for the first room, the air conditioner is selected based on the first maximum heat load acquired in the first acquisition step, for the second room, the air conditioner is selected based on the second maximum heat load acquired in the second acquisition step, and the first output step outputs together air conditioner information indicating the air conditioner selected in the second selection step. According to this, the selector can easily grasp what kind of air conditioners are available as introduction candidates. Therefore, the selection of air conditioning equipment to be introduced into the building can be supported more appropriately.

[0199] (Technique 8) A facility selection support method according to any one of Techniques 1 to 7, including a third selection step of selecting the first room from the rooms of the building, a third acquisition step of acquiring the second maximum heat load for each of the first rooms selected in the third selection step, and a second output step of outputting first notification information for notifying a review of the air conditioning equipment as an introduction candidate for the first rooms where the difference between the first maximum heat load acquired in the first acquisition step and the second maximum heat load acquired in the third acquisition step is equal to or greater than a predetermined value. According to this, when reviewing the air conditioning equipment as an introduction candidate, the selector can easily grasp which rooms should be the targets for review. Therefore, the selection of air conditioning equipment to be introduced into the building can be supported more appropriately.

[0200] (Technique 9) The facility selection support method according to Technique 8, wherein the second output step outputs second notification information for notifying that the need to review the air conditioning equipment is higher as the difference is larger. According to this, when reviewing the air conditioning equipment as an introduction candidate, the selector can easily grasp which rooms should be prioritized for review. Therefore, the selection of air conditioning equipment to be introduced into the building can be supported more appropriately.

[0201] (Technology 10) In the third selection step, for each room of the building, the second maximum heat load is obtained, and among the rooms of the building, a plurality of upper rooms with a high second maximum heat load obtained are selected as the first rooms, which is the facility selection support method described in Technology 8 or Technology 9. According to this, since a plurality of upper rooms with a high second maximum heat load are selected as the first rooms, rooms with a high maximum heat load during the year can be appropriately selected from the rooms of the building.

[0202] (Technology 11) It includes a fourth selection step of selecting an air conditioner and a fourth acquisition step of acquiring the time change of the indoor temperature. In the fourth selection step, for each of the first rooms, the air conditioner is selected based on the first maximum heat load acquired in the first acquisition step, and the air conditioner is also selected based on the second maximum heat load acquired in the third acquisition step. In the fourth acquisition step, when the air conditioner selected based on the first maximum heat load is different from the air conditioner selected based on the second maximum heat load, for each of the air conditioner selected based on the first maximum heat load and the air conditioner selected based on the second maximum heat load, the set temperature of the air conditioner is made the same, and the time change of the indoor temperature on at least one of the hottest day and the coldest day is acquired. The second output step outputs the indoor temperature change information indicating the acquired time change of the indoor temperature together, which is the facility selection support method described in any one of Technologies 8 to 10. According to this, at least one of the coolness of cooling on the hottest day and the warmth of heating on the hottest day can be grasped by the selector by comparing the two air conditioners. Therefore, the selection of the air conditioning equipment to be introduced into the building can be more appropriately supported.

[0203] (Technology 12) A fifth acquisition step of acquiring a peak value of the supply capacity of the air conditioning equipment based on the operation data of the air conditioning equipment corresponding to the rooms of the existing building; and a third output step of outputting peak value information indicating the peak value acquired in the fifth acquisition step together with the first maximum heat load information and the second maximum heat load information. The equipment selection support method according to any one of Technologies 1 to 11 includes these steps. According to this, since the selector can compare the maximum heat load in a year grasped before the introduction of the air conditioning equipment with the amount of heat actually processed by the air conditioning equipment, the selector can easily review the introduced air conditioning equipment. Therefore, the selection of the air conditioning equipment to be introduced into the building can be supported more appropriately.

[0204] (Technology 13) A sixth acquisition step of acquiring, for each of the first rooms, the ratio of the first maximum heat load before and after the selection of the air conditioning equipment to be introduced into the existing building; and a seventh acquisition step of acquiring, for each of the first rooms, the maximum heat load in a year after the selection of the air conditioning equipment to be introduced into the existing building based on the ratio acquired in the sixth acquisition step and the peak value acquired in the fifth acquisition step. The third output step further outputs the maximum heat load in a year after the selection of the air conditioning equipment acquired in the seventh acquisition step. The equipment selection support method according to Technology 12 includes these steps. According to this, the maximum heat load in a year after the selection of the air conditioning equipment considering the operation data can be presented to the selector. Since the operation data is taken into account, the influence of temperature unevenness in the room is considered, and it is a maximum heat load with high accuracy. Therefore, in the review of the air conditioning equipment introduced into the existing building, the selector can accurately grasp the maximum heat load in a year when the reselected air conditioning equipment is introduced. Therefore, the selector can appropriately select the air conditioning equipment to be introduced into the existing building, and can support the selector more appropriately.

[0205] (Technology 14) A facility selection support system for assisting in the selection of air conditioning equipment to be introduced into a building, comprising: a first selection unit that selects a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building; a first acquisition unit that acquires, for each of the first rooms selected by the first selection unit, a first maximum heat load that is a heat load calculated by a first calculation method with higher calculation accuracy than a second calculation method and that is the maximum heat load during the year; a second acquisition unit that acquires, for each of the second rooms not selected by the first selection unit, a second maximum heat load that is a heat load calculated by the second calculation method and that is the maximum heat load during the year; and an output unit that outputs first maximum heat load information indicating the first maximum heat load acquired by the first acquisition unit for the first room and outputs second maximum heat load information indicating the second maximum heat load acquired by the second acquisition unit for the second room. According to this, it has the same effect as the facility selection support method described in Technology 1 above.

[0206] (Technology 15) A program that causes a processor of a terminal device for assisting in the selection of air conditioning equipment to be introduced into a building to function as: a first selection unit that selects a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building; a first acquisition unit that acquires, for each of the first rooms selected by the first selection unit, a first maximum heat load that is a heat load calculated by a first calculation method with higher calculation accuracy than a second calculation method and that is the maximum heat load during the year; a second acquisition unit that acquires, for each of the second rooms not selected by the first selection unit, a second maximum heat load that is a heat load calculated by the second calculation method and that is the maximum heat load during the year; and an output unit that outputs first maximum heat load information indicating the first maximum heat load acquired by the first acquisition unit for the first room and outputs second maximum heat load information indicating the second maximum heat load acquired by the second acquisition unit for the second room. According to this, it has the same effect as the facility selection support method described in Technology 1 above.

Industrial Applicability

[0207] As described above, the facility selection support method, the facility selection support system, and the program according to the present invention can be used for the purpose of supporting the selection of air conditioning facilities to be introduced into a building.

Explanation of Signs

[0208] 1 Air conditioning facility 2 Terminal device 3 Server device 5 Electrical facility 20 Control device 21 Communication unit 22 Display 23 Input unit 31 WEBPRO 200 Processor 201 First selection unit 202 First acquisition unit 203 Second acquisition unit 204 Second selection unit 205 Third acquisition unit 206 Third selection unit 207 Fourth selection unit 208 Fourth acquisition unit 209 Fifth acquisition unit 210 Reception unit 211 Display unit (output unit) 212 Sixth acquisition unit 213 Seventh acquisition unit 220 Memory 221 Program 223 First simulation model data 224 Second simulation model data 225 Third simulation model data 1000 Facility selection support system BL Building CJ Indoor temperature change information CJ1 First indoor temperature change information CJ2 Second indoor temperature change information D1 Design data D2 Calculation result data D3 Operation data G1 First screen G2 Second screen G3, the 3rd screen G4, the 4th screen G5, the 5th screen J11, building information J12, equipment information NW, network P1, selector P2, requester RJ, room information RJ1, room identification information RJ2, the 1st calculation method information RJ3, the 2nd calculation method information RJ4, the 1st maximum heat load information RJ5, the 2nd maximum heat load information RJ6, air conditioner information RJ61, indoor unit type information RJ62, outdoor unit type information RJ7, the 1st notification information RJ8, the 2nd notification information RJ9, peak value information SA1, step (the 1st selection step) SA2, step (the 1st acquisition step) SA3, step (the 2nd acquisition step) SA4, step (the 2nd selection step) SA5, step (the 1st output step) SB1, step (the 3rd selection step) SB2, step (the 3rd acquisition step) SB3, step (the 4th selection step) SB5, step (the 2nd output step) SB6, step (the 4th acquisition step) SB7, step (the 2nd output step) SC1, step (the 5th acquisition step) SC2, SD3, step (the 3rd output step) SD1, step (the 6th acquisition step) SD2, step (the 7th acquisition step)

Claims

1. A facility selection support method for supporting the selection of air conditioning facilities to be introduced into a building, comprising: a first selection step of selecting a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building; a first acquisition step of acquiring, for each first room selected in the first selection step, a first maximum heat load that is a heat load calculated by a first calculation method having higher calculation accuracy than a second calculation method and is the maximum heat load during the year; a second acquisition step of acquiring, for each second room not selected in the first selection step, a second maximum heat load that is a heat load calculated by the second calculation method and is the maximum heat load during the year; a first output step of outputting, for the first room, first maximum heat load information indicating the first maximum heat load acquired in the first acquisition step, and outputting, for the second room, second maximum heat load information indicating the second maximum heat load acquired in the second acquisition step. A facility selection support method.

2. The first calculation method is a method based on a simulation model generated from building information regarding the building, or a method of calculating a peak value of the supply capacity of the air conditioning facility based on operation data of the air conditioning facility corresponding to the rooms of the existing building. The second calculation method is a method based on building equipment design standards. The facility selection support method according to claim 1.

3. In the first selection step, the first room is selected from the rooms of the building based on building information including information regarding heat load for each room of the building. The facility selection support method according to claim 1 or 2.

4. The information regarding heat load includes information related to the influence of solar radiation. In the first selection step, the first room is selected as the first room from the rooms of the building based on the information related to the influence of solar radiation. The facility selection support method according to claim 3.

5. The first acquisition step includes: acquiring at least one of the hottest day and the coldest day at the location of the building; acquiring, for each first room, the maximum heat load on at least one of the hottest day and the coldest day as the first maximum heat load. The facility selection support method according to claim 1 or 2.

6. The first acquisition step includes: identifying the first business day after a consecutive holiday for each room of the building. For each of the first rooms, obtain the maximum heat load on the specified start date as the first maximum heat load. The equipment selection support method according to claim 1 or 2.

7. Including a second selection step of selecting an air conditioner, In the second selection step, for the first room, select the air conditioner based on the first maximum heat load obtained in the first acquisition step, and for the second room, select the air conditioner based on the second maximum heat load obtained in the second acquisition step. The first output step outputs, together with the air conditioner information indicating the air conditioner selected in the second selection step. The equipment selection support method according to claim 1 or 2.

8. A third selection step of selecting the first room from the rooms of the building, For each of the first rooms selected in the third selection step, a third acquisition step of obtaining the second maximum heat load, A second output step of outputting first notification information for notifying a review of the air conditioning equipment for the first room in which the difference between the first maximum heat load obtained in the first acquisition step and the second maximum heat load obtained in the third acquisition step is equal to or greater than a predetermined value. The equipment selection support method according to claim 1 or 2.

9. The second output step outputs second notification information for notifying that the higher the difference, the higher the necessity of reviewing the air conditioning equipment. The equipment selection support method according to claim 8.

10. The third selection step is For each room of the building, obtain the second maximum heat load, Among the rooms of the building, select the upper plurality of rooms with the higher obtained second maximum heat load as the first rooms. The equipment selection support method according to claim 8.

11. A fourth selection step of selecting an air conditioner and a fourth acquisition step of obtaining the time change of the indoor temperature. Including, The fourth selection step is For each of the first rooms, select the air conditioner based on the first maximum heat load obtained in the first acquisition step and also select the air conditioner based on the second maximum heat load obtained in the third acquisition step. The fourth acquisition step is When the air conditioner selected based on the first maximum heat load is different from the air conditioner selected based on the second maximum heat load. For each of the air conditioners selected based on the first maximum heat load and the air conditioner selected based on the second maximum heat load, while setting the set temperature of the air conditioner to be the same, obtain the temporal change of the indoor temperature on at least one of the hottest day and the coldest day, The second output step is also output indoor temperature change information indicating the obtained temporal change of the indoor temperature, The facility selection support method according to claim 8.

12. a fifth acquisition step of obtaining a peak value of the supply capacity of the air conditioning facility based on the operation data of the air conditioning facility corresponding to the rooms of the existing building; a third output step of outputting peak value information indicating the peak value obtained in the fifth acquisition step together with the first maximum heat load information and the second maximum heat load information, The facility selection support method according to claim 1 or 2.

13. a sixth acquisition step of obtaining, for each of the first rooms, the ratio of the first maximum heat load before and after the selection of the air conditioning facility to be introduced into the existing building; a seventh acquisition step of obtaining, for each of the first rooms, the maximum heat load during the year after the selection of the air conditioning facility to be introduced into the existing building based on the ratio obtained in the sixth acquisition step and the peak value obtained in the fifth acquisition step, The third output step further outputs the maximum heat load during the year after the selection of the air conditioning facility obtained in the seventh acquisition step, The facility selection support method according to claim 12.

14. A facility selection support system for supporting the selection of an air conditioning facility to be introduced into a building, a first selection unit that selects a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building; a first acquisition unit that, for each of the first rooms selected by the first selection unit, acquires a first maximum heat load that is a heat load calculated by a first calculation method having a higher calculation accuracy than a second calculation method and is the maximum heat load during the year; a second acquisition unit that, for each of the second rooms not selected by the first selection unit, acquires a second maximum heat load that is a heat load calculated by the second calculation method and is the maximum heat load during the year; an output unit that outputs first maximum heat load information indicating the first maximum heat load acquired by the first acquisition unit for the first room and outputs second maximum heat load information indicating the second maximum heat load acquired by the second acquisition unit for the second room, Equipment selection support system.

15. A processor of a terminal device that supports the selection of air conditioning equipment to be introduced into a building, a first selection unit that selects a first room that satisfies the condition of having a high maximum heat load during the year from the rooms of the building; a first acquisition unit that acquires, for each of the first rooms selected by the first selection unit, a first maximum heat load that is a heat load calculated by a first calculation method having higher calculation accuracy than a second calculation method and is the maximum heat load during the year; a second acquisition unit that acquires, for each of the second rooms not selected by the first selection unit, a second maximum heat load that is a heat load calculated by the second calculation method and is the maximum heat load during the year; an output unit that outputs first maximum heat load information indicating the first maximum heat load acquired by the first acquisition unit for the first room and outputs second maximum heat load information indicating the second maximum heat load acquired by the second acquisition unit for the second room, Program.

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