Method for determining candidate positions of air volume adjustment devices and air conditioning air supply system

Abstract

To provide a method capable of determining a candidate of an appropriate arrangement of an air flow adjusting device regarding a place where the air flow adjusting device can be actually installed on a duct pipe system since the arrangement candidate of the air flow adjusting device is determined based on the capacity of a room, etc., conventionally but it is optimal where the air flow adjusting device is arranged on the duct pipe system is not considered.SOLUTION: An arrangement candidate determination method for an air flow adjusting device A includes determining a candidate of an appropriate arrangement of the air flow adjusting device A in systems of duct pipes 3 and 4 for supplying air-conditioned air to each air-conditioning target space based on a tendency of an air-conditioning load that is an increase / decrease degree of the air-conditioning load in each of a plurality of air-conditioning target spaces.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a method for determining candidate positions of an air volume adjustment device and an air conditioning air supply system.

Background Art

[0002] As a means for achieving energy savings, installation of an air volume adjustment device can be mentioned. Conventionally, in order to achieve energy savings using an air volume adjustment device, the ratio of the ventilation air volume of a plurality of rooms is calculated and the opening degree in the duct is adjusted (Patent Document 1 (Japanese Patent No. 4130788)).

Summary of the Invention

Problems to be Solved by the Invention

[0003] Conventionally, the candidate positions of the air volume adjustment device are determined based on the volume of the room etc., but there is a problem that the optimal position on the duct piping system of the air volume adjustment device is not considered.

Means for Solving the Problems

[0004] The method for determining candidate positions of the air volume adjustment device according to the first aspect determines candidates for suitable positions of the air volume adjustment device in the duct piping system that sends conditioned air to each air-conditioning target space, based on the tendency of the air-conditioning load, which is the degree of increase or decrease of the air-conditioning load, for each of the plurality of air-conditioning target spaces.

[0005] In this method for determining candidate positions, by determining candidates for suitable positions of the air volume adjustment device based on the tendency of the air-conditioning load of each air-conditioning target space, it is possible to avoid arranging an air volume adjustment device with a low energy-saving effect and reduce costs.

[0006] The method for determining candidate positions of the air volume adjustment device according to the second aspect is the method according to the first aspect, wherein the tendency of the air-conditioning load is the degree of increase or decrease of the air-conditioning load for each of the plurality of air-conditioning target spaces, classified by time zone.

[0007] In this method for determining the candidate placement, by using the tendency of the air-conditioning load for each air-conditioned space by time period, even when the tendency of the air-conditioning load for each air-conditioned space changes depending on the time period, the air volume adjustment device can be placed at a suitable position in the duct piping system.

[0008] The method for determining the candidate placement of the air volume adjustment device from the third perspective is the method from the first or second perspective, and the tendency of the air-conditioning load is obtained from the power consumption of the equipment related to the air-conditioning of the entire building and the ratio of the air-conditioning load of each air-conditioned space in the entire building.

[0009] In this method for determining the candidate placement, by using the power consumption of the equipment related to the air-conditioning of the entire building and the ratio of the air-conditioning load of each air-conditioned space in the entire building, even when the power consumption of the equipment related to the air-conditioning of the entire building changes depending on the time period, the tendency of the air-conditioning load for each air-conditioned space can be accurately obtained.

[0010] The method for determining the candidate placement of the air volume adjustment device from the fourth perspective is the method from the first to the third perspectives, and candidates for the suitable placement of the air volume adjustment device are determined such that the air volume adjustment device is arranged in each of the duct pipings extending to a plurality of air-conditioned spaces with different tendencies of the air-conditioning load.

[0011] In this method for determining the candidate placement, the air volume adjustment device is not arranged in the duct piping extending to the air-conditioned spaces with similar tendencies of the air-conditioning load, but the air volume adjustment device is arranged in the duct piping extending to the air-conditioned spaces with relatively different tendencies of the air-conditioning load, thereby preventing the arrangement of the air volume adjustment device with a low energy-saving effect.

[0012] The method for determining the candidate placement of the air volume adjustment device from the fifth perspective is any of the methods from the first to the fourth perspectives, and candidates for the suitable placement of the air volume adjustment device are determined by further considering the constraint information on the placement of the air volume adjustment device in the physical duct piping system.

[0013] In this method for determining the candidate locations for the air volume adjustment device, since the constraint information on the location of the air volume adjustment device in the physical duct piping system is further considered, it is possible to determine candidates for the preferred locations of the air volume adjustment device from among the locations where the air volume adjustment device can actually be installed on the duct piping system.

[0014] The method for determining the candidate locations for the air volume adjustment device from the sixth perspective is any one of the methods from the first to the fifth perspectives. Two or more candidates with a small total of the running cost and the initial cost when the air volume adjustment device is installed are extracted to determine candidates for the preferred locations of the air volume adjustment device.

[0015] In this method for determining the candidate locations, since candidates for the preferred locations of the air volume adjustment device are determined from among those with a small total of the running cost and the initial cost when the air volume adjustment device is installed, it is possible to minimize the life cycle cost obtained by summing the running cost and the initial cost.

[0016] The method for determining the candidate locations for the air volume adjustment device from the seventh perspective is the method from the third perspective. From the space information including the usage time, usage, volume, direction, or floor plan of each air-conditioned target space, the ratio of the air-conditioning load of each air-conditioned target space is determined.

[0017] In this method for determining the candidate locations, by using the space information of each air-conditioned target space to determine the ratio of the air-conditioning load, it is possible to appropriately determine the ratio of the air-conditioning load for each air-conditioned target space.

[0018] The method for determining the candidate locations for the air volume adjustment device from the eighth perspective is the method from the third perspective. By allocating the power consumption of the equipment related to the air-conditioning of the entire building at each time according to the ratio of the air-conditioning load of each air-conditioned target space, the trend of the air-conditioning load is obtained.

[0019] In this method for determining the candidate locations, by allocating the power consumption of the equipment related to the air-conditioning of the entire building at each time according to the ratio of the air-conditioning load of each air-conditioned target space, it is possible to accurately obtain the trend of the air-conditioning load of each air-conditioned target space at each time.

[0020] The method for determining the candidate positions for arranging the air volume adjustment device from the ninth perspective is the method from the eighth perspective, which determines the power consumption of the equipment related to the air conditioning of the entire building at each time from the measured data of the equipment related to the air conditioning installed in the building.

[0021] In this method for determining the candidate positions, by using the data obtained from the equipment related to the actually used air conditioning, the power consumption of the equipment related to the air conditioning of the entire building can be accurately determined.

[0022] The method for determining the candidate positions for arranging the air volume adjustment device from the tenth perspective is the method from the third perspective, which determines the ratio of the air conditioning load from the operation data of the air conditioning system including the supply air volume and the supply air temperature to each air conditioning target space.

[0023] In this method for determining the candidate positions, by using the operation data of the air conditioning system in the existing building, the ratio of the air conditioning load can be accurately determined.

[0024] The air conditioning air supply system from the eleventh perspective includes an air volume adjustment device, a duct piping system, and a placement position determination device. The air volume adjustment device sends the air-conditioned air to a plurality of air conditioning target spaces. The placement position determination device determines the position where the air volume adjustment device is to be placed. The placement position determination device determines candidates for the suitable placement of the air volume adjustment device in the duct piping system based on the tendency of the air conditioning load, which is the degree of increase or decrease of the air conditioning load, for each of the plurality of air conditioning target spaces. The air volume adjustment device is placed at the candidate position determined by the placement position determination device and sends the air-conditioned air to each air conditioning target space.

[0025] In this air conditioning air supply system, the air volume adjustment device can be placed at a suitable position in the duct piping system to supply the air-conditioned air to each air conditioning target space.

[0026] The air conditioning air supply system according to the 12th aspect is the system according to the 11th aspect, wherein the arrangement position determination device determines candidates for suitable arrangements of the air volume adjustment device in the duct piping system based on the trends of the air conditioning loads for each of the plurality of spaces to be air conditioned, by time zone, which are the increases and decreases of the air conditioning loads.

[0027] In this air conditioning air supply system, by using the trends of the air conditioning loads for each space to be air conditioned by time zone, even when the trends of the air conditioning loads for each space to be air conditioned change depending on the time zone, the air volume adjustment device can be arranged at a suitable position in the duct piping system.

[0028] The air conditioning air supply system according to the 13th aspect is the system according to the 11th or 12th aspect, wherein the arrangement position determination device determines candidates for suitable arrangements of the air volume adjustment device such that the air volume adjustment device is arranged in each of the duct pipings extending to a plurality of spaces to be air conditioned having different trends of air conditioning loads.

[0029] In this air conditioning air supply system, the air volume adjustment device is not arranged at locations where the trends of the air conditioning loads are similar, but by arranging the air volume adjustment device in the duct pipings extending to the spaces to be air conditioned having relatively different trends of air conditioning loads, it is possible to eliminate the air volume adjustment devices with low energy saving effects.

[0030] The air conditioning air supply system according to the 14th aspect is the system according to the 11th to 13th aspects, wherein the arrangement position determination device further considers the constraint information on the arrangement of the air volume adjustment device in the physical duct piping system, and determines candidates for suitable arrangements of the air volume adjustment device.

[0031] In this air conditioning air supply system, the locations where the air volume adjustment device can actually be installed on the duct piping system can be set as candidates for suitable arrangements of the air volume adjustment device.

Brief Description of the Drawings

[0032]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9A

Figure 9B

Figure 9C

Figure 10

Embodiments for Carrying Out the Invention

[0033] <First Embodiment> (1) Overview of the air-conditioning air supply system As one of the air-conditioning air supply systems for individual air-conditioning of a plurality of spaces, a VAV (Variable Air Volume) type air-conditioning system is used. The VAV type air-conditioning system is configured to supply the air conditioned by the air-conditioning unit to a plurality of air-conditioned spaces through a plurality of sub-ducts branched from the main duct connected to the air outlet of the air-conditioning unit. An air volume adjustment device is provided in each sub-duct so that the air volume supplied to each air-conditioned space is adjusted. In addition, a blower for sending the conditioned air to a plurality of air-conditioned spaces is provided in the air-conditioning unit, and its capacity is controlled.

[0034] (2) Configuration of the air conditioning air supply system (2-1) Installation location of the air volume adjustment device As shown in FIGS. 1 to 3, the air conditioning air supply system 1 of the present embodiment is an air conditioning system provided for individually conditioning a plurality of air-conditioned target spaces in a building 80. The building 80 is an example of a building in which duct pipes 3 and 4 are installed, as shown in FIG. 1. As shown in FIG. 2, the air conditioning air supply system 1 mainly includes an air conditioning unit 2, duct pipe systems 3 and 4, an air volume adjustment device A, and an arrangement Candidate determination device 100.

[0035] The air volume adjustment device A is arranged at the candidate position on the duct pipe 4 determined by the Candidate determination device 100. The air conditioning unit 2 adjusts the air volume of the conditioned air with the air volume adjustment device A and sends it to each air-conditioned target space.

[0036] The air volume adjustment device A of the air conditioning air supply system 1 of the present embodiment is a VAV (Variable Air Volume control device). As shown in FIG. 1, the air volume adjustment device A is arranged in the duct pipes 4a to 4i in the space above the ceiling of each floor of the building 80. The air volume adjustment devices A13 to A15, A23 to 25, and A33 to A35 each have an opening degree variable air conditioning damper 141a to 141i.

[0037] The building 80 has air-conditioned target spaces (rooms) 101 to 106 on the first floor (rooms 101, 102, and 106 are omitted in FIGS. 1 and 3). The air volume adjustment device A13 is arranged in the duct pipe 4a connected to the room 103 on the first floor of the building 80. The air volume adjustment device A14 is arranged in the duct pipe 4b connected to the room 104 on the first floor of the building 80. The air volume adjustment device A15 is arranged in the duct pipe 4c connected to the room 105 on the first floor of the building 80.

[0038] In addition, the building 80 has air-conditioning target spaces (rooms) 201 to 206 on the second floor (rooms 201, 202, and 206 are omitted in FIGS. 1 and 3). An air volume adjustment device A23 is arranged in a duct pipe 4d connected to room 203 on the second floor of the building 80. An air volume adjustment device A24 is arranged in a duct pipe 4e connected to room 204 on the second floor of the building 80. An air volume adjustment device A25 is arranged in a duct pipe 4f connected to room 205 on the second floor of the building 80.

[0039] In addition, the building 80 has air-conditioning target spaces (rooms) 301 to 306 on the third floor (rooms 301, 302, and 306 are omitted in FIGS. 1 and 3). An air volume adjustment device A33 is arranged in a duct pipe 4g connected to room 303 on the third floor of the building 80. An air volume adjustment device A34 is arranged in a duct pipe 4h connected to room 304 on the third floor of the building 80. An air volume adjustment device A35 is arranged in a duct pipe 4i connected to room 305 on the third floor of the building 80.

[0040] (2-2) Arrangement Candidate Determination device Arrangement Candidate The determination device 100 is realized by a computer. The arrangement position determination device 100 of the air-conditioning air supply system 1 of the present embodiment is a device for implementing the arrangement candidate determination method of the air volume adjustment device A described in the claims.

[0041] Arrangement Candidate As shown in FIG. 2, the determination device 100 includes an information acquisition unit 10, a power consumption determination unit 20, an air-conditioning load ratio determination unit 30, an air-conditioning load trend calculation unit 40, and an arrangement candidate determination unit 50. CoThe computer 100 includes a control arithmetic unit and a storage device. As the control arithmetic unit, a processor such as a CPU or a GPU can be used. The control arithmetic unit reads out a program stored in the storage device and performs predetermined image processing and arithmetic processing according to this program. Further, the control arithmetic unit can write the arithmetic result into the storage device or read out the information stored in the storage device according to the program. The information acquisition unit 10, the power consumption determination unit 20, the air-conditioning load ratio determination unit 30, the air-conditioning load trend calculation unit 40, and the placement candidate determination unit 50 shown in FIG. 2 are various functional blocks realized by the control arithmetic unit. These functional blocks appear when the control arithmetic unit executes a program.

[0042] (2-2-1) Information acquisition unit The information acquisition unit 10 acquires the constraint information on the arrangement of the air volume adjustment device A in the physical duct pipes 3 and 4 of the building 80. The constraint information on the arrangement of the air volume adjustment device A in the physical duct pipes 3 and 4 of the building 80 includes the arrangement information 11 of the duct pipes 3 and 4 of the building 80. The information acquisition unit 10 acquires the arrangement information 11 of the duct pipes 3 and 4 from the external design drawing database 60.

[0043] In addition, the information acquisition unit 10 acquires the space information 12 of each air-conditioning target space 101 to 106. The space information 12 of each air-conditioning target space 101 to 106 includes the usage time, usage, volume, direction, or floor plan. The information acquisition unit 10 acquires the space information regarding the usage, volume, direction, or floor plan of each air-conditioning target space 101 to 106 from the external design drawing database 60. Further, the information acquisition unit 10 acquires the space information 12 regarding the usage time of each air-conditioning target space 101 to 106 by importing data from the air-conditioning unit 2.

[0044] (2-2-2) Power consumption determination unit The power consumption determination unit 20 determines the power consumption of the air-conditioning unit 2, which is a device related to the air-conditioning of the entire building 80 at each time, from the measured data of the air-conditioning unit 2 installed in the building 80.

[0045] (2-2-3) Air-conditioning load ratio determination unit The air-conditioning load ratio determination unit 30 determines the ratio of the air-conditioning load of each air-conditioning target space 101 to 106 from the space information 12 including the usage time, usage, volume, direction, or floor plan of each air-conditioning target space 101 to 106.

[0046] (2-2-4) Air-conditioning load trend calculation unit The air-conditioning load trend calculation unit 40 obtains the trend of the air-conditioning load from the power consumption of the air-conditioning unit 2, which is a device related to the air-conditioning of the entire building 80, and the ratio of the air-conditioning load of each air-conditioning target space 101 to 106 in the air-conditioning load of the entire building 80.

[0047] (2-2-5) Placement candidate determination unit The placement candidate determination unit 50 determines candidates for the preferred placement of the air volume adjustment device A in the four duct pipes 3 and 4 that send the conditioned air to each air-conditioning target space 101 to 106 based on the trend of the air-conditioning load, which is the increase and decrease of the air-conditioning load for each time zone, of each of the plurality of air-conditioning target spaces 101 to 106.

[0048] (2-3) Air-conditioning unit As shown in FIG. 3, an air inlet 121a for sucking outdoor or indoor air and an air outlet 121b for discharging the conditioned air are formed in the unit casing 121 of the air-conditioning unit 2. The air inlet 121a is connected to the suction duct 5, and the air outlet 121b is connected to the main duct 3.

[0049] The blower 122 is provided inside the unit casing 121 and is a blower that performs a blowing operation of sucking air from the air inlet 121a and discharging it from the air outlet 121b. The blower 122 mainly has an impeller (not shown) composed of a multi-blade impeller or the like, and this impeller is rotationally driven by a motor 124. The motor 124 is a variable-speed motor. Therefore, the blower 122 constitutes a variable-speed blower capable of performing capacity control by changing the rotation speed of the motor 124.

[0050] The heat exchanger 123 is provided inside the unit casing 121 and is a heat exchanger that adjusts the temperature and humidity of the air inhaled into the unit casing 121 by the blowing operation of the blower 122.

[0051] The air conditioning unit 2 is provided with a control unit 125 for controlling the operation of devices such as the blower 122. The control unit 125 has an electric circuit, a microcomputer, a memory, etc. for operating devices such as the blower 22. The air conditioning unit 2 has space information 12 regarding the usage time of each air-conditioned target space 101 to 106.

[0052] (2-4) Duct piping system The duct piping system has a main duct 3 and sub ducts 4 (4a to 4i).

[0053] The main duct 3 is provided in the ceiling space of the building or the like and is a duct connected to the air outlet of the air conditioning unit 2.

[0054] As shown in FIG. 1, the sub ducts 4a to 4i are provided in the ceiling space of the building 80 or the like and are ducts branched from the main duct 3 to the air-conditioned target spaces 103 to 105, 203 to 205, and 303 to 305.

[0055] (2-5) Air volume adjustment device As shown in FIG. 3, in the first floor portion of the building 80, air volume adjustment devices A13 to A15 are provided in each of the sub ducts 4a to 4c. The air volume adjustment devices A13 to A15 each have adjustable-opening air conditioning dampers 141a to 141c. Control can be performed to change the air volume passing through the air conditioning dampers 141a to 141c and each of the sub ducts 4a to 4c, that is, the air volume supplied to each air-conditioned target space 103 to 105. The second floor portion and the third floor portion of the building 80 have the same configuration as the first floor portion of the building 80.

[0056] (3) Overall operation of the air conditioning air supply system The flowchart of the air conditioning air supply system 1 is shown in FIG. 4.

[0057] First, measure the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80 (step S1). Also, determine the ratio of the air conditioning loads of the air conditioned spaces (rooms) 101 to 106 in the entire building 80 (step S2).

[0058] An example of the air conditioning power consumption [kWh] of the entire building 80 and the ratio [%] of the air conditioning loads of rooms 101 to 106 at each time is shown in FIG. 5. When the time is 9 o'clock in FIG. 5, it shows the air conditioning power consumption [kWh] of the entire building from 9 am to 10 am and the ratio [%] of the air conditioning loads of each room. For example, from 9 am to 10 am, the air conditioning power consumption of the entire building is 1000 kWh, and the ratios of the air conditioning loads of rooms 101 to 106 are 15%, 23%, 12%, 5%, 12%, and 33% respectively.

[0059] Next, determine the trend of the air conditioning load, which is the increase and decrease of the air conditioning load by time zone, for rooms 101 to 106 that are the air conditioned spaces (step S3). As shown in FIG. 5, for example, since the air conditioning power consumption of the entire building from 9 am to 10 am is 1000 kWh and the ratio of the air conditioning load of room 101 is 15%, the trend of the air conditioning load of room 101 from 9 am to 10 am is 150 kWh. Also, since the air conditioning power consumption of the entire building from 10 am to 11 am is 1000 kWh and the ratio of the air conditioning load of room 101 is 10%, the trend of the air conditioning load of room 101 from 10 am to 11 am is 100 kWh.

[0060] Therefore, in room 101, the trend of the air conditioning load changes from 150 kWh to 100 kWh between 9 am and 11 am, so the air conditioning load is decreasing.

[0061] Also, since the air conditioning power consumption of the entire building from 9 am to 10 am is 1000 kWh and the ratio of the air conditioning load of room 106 is 33%, the trend of the air conditioning load of room 106 from 9 am to 10 am is 330 kWh. Also, since the air conditioning power consumption of the entire building from 10 am to 11 am is 1000 kWh and the ratio of the air conditioning load of room 106 is 60%, the trend of the air conditioning load of room 106 from 10 am to 11 am is 600 kWh.

[0062] Therefore, in Room 106, between 9:00 am and 11:00 am, the air conditioning load trend is from 330 kWh to 600 kWh, so the air conditioning load is increasing.

[0063] Next, candidates for the optimal arrangement of the air volume adjustment device A in the four duct pipelines 3 and 4 are determined (step S4). An example of the arrangement of the air volume adjustment device A in the four duct pipelines 3 and 4 is shown in FIG. 6. As shown in FIG. 6, the air volume adjustment devices A11 to A16 are respectively arranged on the sub-ducts 4a, 4b, 4c, 4j, 4k, and 4l branched from the main duct 3 to the rooms 101 to 106.

[0064] After determining the arrangement candidates of the air volume adjustment device A in steps S1 to S4, the conditioned air is sent from the air volume adjustment device A arranged at the candidate position to each of the rooms 101 to 106 (step S5).

[0065] (4) Features (4-1) The method for determining the arrangement candidates of the air volume adjustment device A according to this embodiment is based on the trend of the air conditioning load, which is the increase and decrease of the air conditioning load for each time period in each of the plurality of air-conditioned spaces 101 to 106, to determine the candidates for the optimal arrangement of the air volume adjustment device A in the four duct pipelines 3 and 4 that send the conditioned air to each of the air-conditioned spaces 101 to 106.

[0066] In this method for determining the arrangement candidates of the air volume adjustment device A, by determining the optimal arrangement candidates of the air volume adjustment device A based on the trend of the air conditioning load in the air-conditioned spaces 101 to 106, an air volume adjustment device with a low energy-saving effect is not arranged, the number of installed air volume adjustment devices is reduced, and the installation man-hours of the air volume adjustment devices can be reduced. Thereby, the cost can be reduced.

[0067] Conventionally, since the calculation for estimating the energy-saving effect by installing the air volume adjustment device is very laborious, there is no habit of calculating the installation effect of the air volume adjustment device. In this embodiment, an optimal design of the arrangement of the air volume adjustment device can be easily performed so as to obtain an energy-saving effect.

[0068] In this embodiment, instead of selecting the optimal capacity of an air conditioner such as an indoor unit or an outdoor unit, candidates for the suitable placement of the air volume adjustment device are determined, and the optimal design of the placement of the air volume adjustment device is carried out. Different from the capacity selection of the air conditioner, due to the characteristics of the air volume adjustment device, there is an advantage that the air volume will not be insufficient due to the installation of the air volume adjustment device.

[0069] Also, in this method for determining the placement candidates of the air volume adjustment device A, the optimal design of the placement of the air volume adjustment device can be carried out in a labor-saving manner while ensuring the quality of the design. Also, based on the suitable placement of the air volume adjustment device, an optimal design can be made for the type and placement of the branch duct.

[0070] Also, in this method for determining the placement candidates of the air volume adjustment device A, by using the tendency of the air conditioning load for each time zone of each air conditioning target space 101 to 106, even when the tendency of the air conditioning load of each air conditioning target space 101 to 106 changes depending on the time zone, the air volume adjustment device A can be placed at a suitable position in the duct piping system.

[0071] (4-2) In the method for determining the placement candidates of the air volume adjustment device A according to this embodiment, the tendency of the air conditioning load is obtained from the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80, and the ratio of the air conditioning load of each air conditioning target space 101 to 106 in the entire building 80.

[0072] In this method for determining the placement candidates of the air volume adjustment device A, by using the power consumption of the air conditioning unit 2 and the ratio of the air conditioning load of each room 101 to 106 in the entire building 80, even when the power consumption of the air conditioning unit 2 changes depending on the time zone, the tendency of the air conditioning load of each room 101 to 106 can be accurately obtained.

[0073] (4-3) In the method for determining the placement candidates of the air volume adjustment device A according to this embodiment, the ratio of the air conditioning load of each air conditioning target space 101 to 106 is determined from the space information 12 including the usage time, usage, volume, azimuth, or floor plan of each air conditioning target space 101 to 106.

[0074] In this method for determining the candidate positions for arranging the air volume adjustment device A, by using the spatial information 12 to determine the ratio of the air conditioning load, it is possible to appropriately determine the ratio of the air conditioning load for each of the rooms 101 to 106.

[0075] (4-4) In the method for determining the candidate positions for arranging the air volume adjustment device A according to this embodiment, the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80 at each time, is determined from the measured data of the air conditioning unit 2.

[0076] In this method for determining the candidate positions for arranging the air volume adjustment device A, by using the data obtained from the actually used air conditioning unit 2, it is possible to accurately determine the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80.

[0077] (4-5) In the air conditioning air supply system 1 according to this embodiment, it includes the air volume adjustment device A, the duct piping systems 3 and 4, and the Candidate arrangement Candidate determination device 100. The air volume adjustment device A sends the air-conditioned air to a plurality of air-conditioned target spaces 101 to 106. The Candidate arrangement Candidate determination device 100 determines the position where the air volume adjustment device A is to be arranged. The

[0078] arrangement determination device 100 determines candidates for the preferred arrangement of the air volume adjustment device A in the duct piping systems 3 and 4 based on the tendency of the air conditioning load, which is the increase and decrease of the air conditioning load for each of the plurality of air-conditioned target spaces 100 to 106 by time zone. The air volume adjustment device A is Candidate arranged at the candidate position determined by the arrangement

[0078] determination device 100 and sends the air-conditioned air to each air-conditioned target space 101 to 106.

[0079] (5) Variation (5-1) Variation 1A In this embodiment, the placement candidate determination unit 50 of the placement candidate determination device 100 determines the candidates for the preferred placement of the air volume adjustment device A in the four duct pipes 3 and 4 that send the conditioned air to each of the plurality of air-conditioned target spaces 101 to 106 based on the trend of the air-conditioning load, which is the degree of increase and decrease of the air-conditioning load for each time zone of each of the plurality of air-conditioned target spaces 101 to 106. However, the present invention is not limited to this case.

[0080] The placement candidate determination unit 50 of the placement candidate determination device 100 may analyze the load trend, which is the degree of increase and decrease of the air-conditioning load, for each of the plurality of air-conditioned target spaces 101 to 106, for example, for each peak season or event, and determine the candidates for the preferred placement of the air volume adjustment device A.

[0081] (5-2) Variation 1B In this embodiment, the placement candidate determination unit 50 of the placement candidate determination device 100 determines the candidates for the preferred placement of the air volume adjustment device A in the four duct pipes 3 and 4 that send the conditioned air to each of the plurality of air-conditioned target spaces 101 to 106 based on the trend of the air-conditioning load, which is the degree of increase and decrease of the air-conditioning load for each time zone of each of the plurality of air-conditioned target spaces 101 to 106. However, the present invention is not limited to this case.

[0082] The placement candidate determination unit 50 of the placement candidate determination device 100 of the air-conditioning air supply system 1 may determine the candidates for the preferred placement of the air volume adjustment device A such that the air volume adjustment device A is arranged in each of the duct pipes 4 extending to the plurality of air-conditioned target spaces 101 to 106 with different trends of the air-conditioning load.

[0083] The flowchart of the method for determining the candidate placement of the air volume adjustment device of Modification Example 1B is shown in FIG. 7. First, measure the power consumption of the equipment 2 related to the air conditioning of the entire building 80 (step S11). Next, obtain the ratio of the air conditioning loads of each room 101 to 106 in the entire building 80 (step S12). Determine the power consumption of the equipment 2 related to the air conditioning of the entire building 80 obtained in step S11 and the tendency of the air conditioning load at each time of each room 101 to 106 shown in the entire building 80 obtained in step S12 (step S13). Using the tendency of the air conditioning load obtained in step S13, calculate the change rate of the tendency of the air conditioning load per hour for each of the rooms 101 to 106 (step S14). Regarding the change rate of the air conditioning load per hour for each of the rooms 101 to 106 obtained in step S14, calculate the correlation coefficient for each of the rooms 101 to 106 using the following formula 1 (step S15).

[0084] [Number]

[0085] Set a plurality of threshold values for the correlation coefficient, and compare the correlation coefficient calculated in step S15 with the threshold value (step S16). Here, if the correlation coefficient is smaller than the threshold value, it is determined that the tendency of the air conditioning load is relatively different.

[0086] Determine the locations where it is determined that the tendency of the air conditioning load is relatively different as candidates for the suitable placement of the air volume adjustment device A in the duct piping systems 3 and 4 (step S17).

[0087] After determining the candidates for the suitable placement of the air volume adjustment device A, the designer may determine the placement of the air volume adjustment device A from among the candidates. Further, the candidates for the suitable placement of the air volume adjustment device A may be narrowed down, and in order to determine the order of the installation patterns of the air volume adjustment device A that can obtain energy-saving performance, the life cycle cost may be calculated when the air volume adjustment device A is set.

[0088] An example of the change rate of the tendency of the air conditioning load of the rooms 101 to 106 is shown in FIG. 8.

[0089] When the threshold of the correlation coefficient is set to 0.8, the correlation coefficient between Room 101 and Room 102 is 0.94, which is greater than the threshold. On the other hand, for Room 101, the correlation coefficients with Rooms 103, 104, 105, and 106 are 0.62, 0.51, 0.54, and 0.49 respectively, which are less than the threshold of 0.8. Therefore, it is determined that the trends of the air conditioning loads in Room 101 and Rooms 103, 104, 105, and 106 are relatively different from each other.

[0090] An example of the arrangement of the air volume adjustment device A when the threshold of the correlation coefficient is 0.8 is shown in Fig. 9A. As shown in Fig. 9A, the air volume adjustment device A111 is arranged in the duct piping 4m before the branch to the sub-ducts connecting Rooms 101 and 102. Also, the air volume adjustment devices A112 to A115 are arranged in each of the sub-ducts 4n, 4о, 4p, and 4l connecting to Rooms 103, 104, 105, and 106 respectively.

[0091] Also, when the threshold of the correlation coefficient is 0.6, for Room 104, the correlation coefficients with Rooms 101, 103, 105, and 106 are 0.51, 0.59, 0.35, and 0.16 respectively, which are less than the threshold of 0.6. Therefore, it is determined that the trends of the air conditioning loads in Room 104 and Rooms 101, 103, 105, and 106 are relatively different from each other. Also, for Room 105, the correlation coefficients with Rooms 101, 102, 103, 104, and 106 are 0.54, 0.55, 0.53, 0.35, and 0.16 respectively, which are less than the threshold of 0.6. Therefore, it is determined that the trends of the air conditioning loads in Room 105 and Rooms 101, 102, 103, 104, and 106 are relatively different from each other. Also, for Room 106, the correlation coefficients with Rooms 101, 102, 103, 104, and 105 are 0.49, 0.48, 0.21, 0.16, and 0.16 respectively, which are less than the threshold of 0.6. Therefore, it is determined that the trends of the air conditioning loads in Room 106 and Rooms 101, 102, 103, 104, and 105 are relatively different from each other.

[0092] An example of the arrangement of the air volume adjustment device A when the threshold value of the correlation coefficient is set to 0.6 is shown in FIG. 9B. As shown in FIG. 9B, the air volume adjustment device A116 is arranged in the duct pipe 4q in front of the branch to the sub-ducts connected to the rooms 101 to 103. Further, the air volume adjustment devices A113 to A115 are arranged in each of the sub-ducts 4о, 4p, and 4l connected to the rooms 104, 105, and 106.

[0093] Also, when the threshold value of the correlation relationship is 0.3, the correlation coefficients of room 106 with rooms 103, 104, and 105 are 0.21, 0.16, and 0.16, respectively, which are smaller than the threshold value of 0.3. Therefore, it is determined that the trends of the air conditioning loads in room 106 and rooms 103, 104, and 105 are relatively different from each other.

[0094] An example of the arrangement of the air volume adjustment device A when the threshold value of the correlation coefficient is set to 0.3 is shown in FIG. 9C. As shown in FIG. 9C, the air volume adjustment device A117 is arranged in the duct pipe 4r in front of the branch to the sub-ducts connected to the rooms 101 to 105. Further, the air volume adjustment device A115 is arranged in the sub-duct 4l connected to the room 106.

[0095] In the method for determining the arrangement candidates of the air volume adjustment device in Modification 1B, the air volume adjustment device A is not arranged in the duct pipes extending to the air conditioning target spaces with similar air conditioning load trends, but the air volume adjustment device A is arranged in the duct pipes extending to the air conditioning target spaces with relatively different air conditioning load trends, so that the air volume adjustment device A with a low energy saving effect can be reduced.

[0096] A plurality of air conditioning target spaces in which the air conditioning loads vary in the same way at each time are regarded as having similar air conditioning load trends. When the air conditioning load trends of the plurality of air conditioning target spaces are similar, the air conditioned air is supplied from the same duct pipe without passing through the air volume adjustment device A.

[0097] By arranging the air volume adjustment device A in the duct pipes extending to the air conditioning target spaces with relatively different air conditioning load trends using the arrangement method of the air volume adjustment device in Modification 1B, the air volume adjustment device A with a low energy saving effect can be reduced, and the air conditioned air can be supplied.

[0098] (5-3) Variant Example 1C In this embodiment, the air-conditioning load trend calculation unit 40 of the arrangement candidate determination device 100 has been described for the case of obtaining the trend of the air-conditioning load from the power consumption of the air-conditioning unit 2, which is a device related to the air-conditioning of the entire building 80, and the ratio of the air-conditioning loads of the respective air-conditioning target spaces 101 to 106 in the air-conditioning load of the entire building 80. However, the present invention is not limited to this.

[0099] The air-conditioning load trend calculation unit 40 of the arrangement candidate determination device 100 may obtain the trend of the air-conditioning load by allocating the power consumption of the air-conditioning unit 2, which is a device related to the air-conditioning of the entire building 80 at each time, according to the ratio of the air-conditioning loads of the respective air-conditioning target spaces 101 to 106.

[0100] In the method for determining the arrangement candidate of the air volume adjustment device in Variant Example 1C, by allocating the power consumption of the air-conditioning unit 2 at each time according to the ratio of the air-conditioning loads of the respective rooms 101 to 106, it is possible to accurately obtain the trend of the air-conditioning load of each air-conditioning target space 101 to 106 at each time.

[0101] (5-4) Variant Example 1D In this embodiment, the arrangement candidate determination unit 50 of the arrangement candidate determination device 100 has been described for the case of determining the candidate for the suitable arrangement of the air volume adjustment device A in the duct pipes 3 and 4 that send the conditioned air to the respective air-conditioning target spaces 101 to 106 based on the trend of the air-conditioning load, which is the increase and decrease of the air-conditioning load for each time zone, of each of the plurality of air-conditioning target spaces 101 to 106. However, the present invention is not limited to this.

[0102] The arrangement candidate determination unit 50 of the arrangement candidate determination device 100 may further consider the arrangement information 11 of the duct pipe system, which is the constraint information on the arrangement of the air volume adjustment device A in the physical duct pipes 3 and 4, and determine the candidate for the suitable arrangement of the air volume adjustment device A so as to conform to the actual duct pipes 3 and 4.

[0103] In the method for determining the candidate locations for arranging the air volume adjustment device of Modification 1D, candidates for arranging the air volume adjustment device A can be determined from the locations where the air volume adjustment device A can actually be arranged on the four duct pipelines 3 and 4. Further, by using the method for determining the candidate locations for arranging the air volume adjustment device of Modification 1D, the air volume adjustment device A can be arranged at a location where the air volume adjustment device A can actually be installed on the four duct pipelines 3 and 4, and conditioned air can be supplied.

[0104] In addition, the arrangement information 11 of the duct pipeline system is not limited to being completely compliant with the actual four duct pipelines 3 and 4. When it is possible to inexpensively change the arrangement of the four duct pipelines 3 and 4 from the current arrangement and the energy-saving effect due to the change in the arrangement of the four duct pipelines 3 and 4 is significant, the arrangement information of the changed duct pipeline system may be used when determining the candidates for the preferred arrangement of the air volume adjustment device.

[0105] For example, based on the drawing of the actual duct pipeline system, the constraint information on the arrangement of the air volume adjustment device A in the four duct pipelines 3 and 4 may be provided by manually specifying the non-changeable part and the changeable part.

[0106] (5-5) Modification 1E In this embodiment, the arrangement candidate determination unit 50 of the arrangement candidate determination device 100 has been described for the case of determining the candidates for the preferred arrangement of the air volume adjustment device A in the four duct pipelines 3 and 4 that send conditioned air to each of the plurality of air-conditioned spaces 101 to 106 based on the trend of the air-conditioning load, which is the increase and decrease of the air-conditioning load for each time zone of each of the air-conditioned spaces 101 to 106, but it is not limited to this.

[0107] The arrangement candidate determination unit 50 of the arrangement candidate determination device 100 may extract two or more candidates with a small total of the running cost and the initial cost when the air volume adjustment device A is installed, and determine the candidates for the preferred arrangement of the air volume adjustment device A. The initial cost includes the unit price of the air volume adjustment device A and the construction cost.

[0108] In the method for determining the candidate placement of the air volume adjustment device according to Modification 1E, the life cycle cost obtained by summing the running cost and the initial cost can be minimized.

[0109] (5-6) Modification 1F In this embodiment, the case where the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80 at each time, is determined from the measured data of the air conditioning unit 2 installed in the building 80 has been described, but the present invention is not limited thereto.

[0110] The power usage details of the entire building 80 may be acquired, and the power consumption of the devices related to the air conditioning of the entire building 80 may be analyzed and determined from the power usage details of the entire building 80. The power consumption of the devices related to the air conditioning of the entire building 80 may be estimated from the air conditioning load of the entire building 80, environmental information such as seasonal information, or the type of air conditioning equipment.

[0111] (5-7) Modification 1G In this embodiment, the case where the air conditioning load ratio determination unit 30 of the candidate placement determination device 100 determines the ratio of the air conditioning load of each air conditioning target space 101 to 106 from the space information 12 including the usage time, usage, volume, orientation, or floor plan of each air conditioning target space 101 to 106 has been described, but the present invention is not limited thereto.

[0112] The air conditioning load ratio determination unit 30 of the candidate placement determination device 100 may determine the ratio of the air conditioning load from the operation data of the air conditioning system including the supply air volume and the supply air temperature to each air conditioning target space 101 to 106.

[0113] In the method for determining the candidate placement of the air volume adjustment device according to Modification 1G, by conducting an on-site survey to obtain the operation data of the air conditioning system in the existing building, the ratio of the air conditioning load can be accurately determined.

[0114] (5-8) Modification 1H In this embodiment, the case where the air volume adjustment devices A11 to A16 are arranged on the sub-ducts 4a, 4b, 4c, 4j, 4k, and 4l connected to the rooms 101 to 106, which are the spaces to be air-conditioned, has been described, but the present invention is not limited to this.

[0115] Other examples of the arrangement of the air volume adjustment device A in the four systems of the duct pipes 3 and 4 are shown in FIG. 10 as shown in FIG. 10 As shown in FIG., the air volume adjustment device A118 is arranged in the duct pipe 4s in front of the branch where the sub-ducts 4k and 4j connected to the rooms 101 and 102 branch. Also, the air volume adjustment device A119 is arranged in the duct pipe 4t in front of the branch where the sub-ducts 4a, 4b, and 4c connected to the rooms 103, 104, and 105 branch. Further, the air volume adjustment device A120 is arranged in the sub-duct 4l connected to the room 106.

[0116] Thus, when the air volume adjustment device A118 is arranged in the duct pipe 4s in front of the branch where the sub-ducts 4k and 4j connected to the rooms 101 and 102 branch, since there is no need to separately install the air volume adjustment device A at the connection points of the duct pipes 4j and 4k branched from the duct pipe 4s to the respective rooms 101 and 102, the cost can be reduced.

[0117] (5-9) Modification Example 1I In this embodiment, the case where the air volume adjustment device A is a VAV (Variable Air Volume control device) has been described, but it may also be a CAV (Constant Air Volume control device), a fan unit that adjusts the air volume by a fan, or the like.

[0118] (5-10) Modification Example 1J As described above, the embodiments of the present disclosure have been explained, but it will be understood that various changes in form and details are possible without departing from the spirit and scope of the present disclosure described in the claims.

Explanation of Reference Numerals

[0119] 1 Air-conditioning air supply system 2 Air-conditioning unit 3 Main duct (duct pipe) 4, 4a to 4t Sub - ducts (duct pipes) 141a to 141l Air - conditioning dampers 100 Arrangement candidate determination device (computer) 10 Information acquisition unit 11 Arrangement information of duct pipe systems (constraint information on the arrangement of air volume adjustment devices) 12 Space information 20 Power consumption determination unit 30 Air - conditioning load ratio determination unit 40 Air - conditioning load trend calculation unit 50 Arrangement candidate determination unit 60 Design drawing database 80 Building A (A11 to A16, A23 to A25, A33 to A35, A111 to A120) Air volume adjustment devices

Prior art documents

Patent documents

[0120]

Patent Document 1

Claims

Claims 1. An arrangement candidate determination device (100) comprising an air-conditioning load trend calculation unit (40) that calculates the trend of the air-conditioning load, which is the degree of increase or decrease of the air-conditioning load, for each of a plurality of air-conditioned target spaces (101 to 106), and an arrangement candidate determination unit (50) that determines candidates for the preferred arrangement of the air volume adjustment device (A), wherein the arrangement candidate determination unit determines candidates for the preferred arrangement of the air volume adjustment device in the duct piping (3, 4) system that sends conditioned air to each air-conditioned target space based on the trend of the air-conditioning load. A method for determining candidates for the arrangement of an air volume adjustment device. Claims 2. The trend of the air-conditioning load is the degree of increase or decrease of the air-conditioning load for each of the plurality of air-conditioned target spaces by time zone. The method for determining candidates for the arrangement of the air volume adjustment device according to claim 1. Claims 3. The trend of the air-conditioning load is obtained from the power consumption of equipment (2) related to the air-conditioning of the entire building (80) and the ratio of the air-conditioning load of each air-conditioned target space to the air-conditioning load of the entire building. The method for determining candidates for the arrangement of the air volume adjustment device according to claim 1 or 2. Claims 4. Candidates for the preferred arrangement of the air volume adjustment device are determined such that the air volume adjustment device is arranged in each of the duct pipes extending to a plurality of air-conditioned target spaces having different trends of the air-conditioning load. The method for determining candidates for the arrangement of the air volume adjustment device according to any one of claims 1 to 3. Claims 5. Considering further the constraint information (11) on the arrangement of the air volume adjustment device in the physical duct piping system, candidates for the preferred arrangement of the air volume adjustment device are determined. The method for determining candidates for the arrangement of the air volume adjustment device according to any one of claims 1 to 4. Claims 6. Two or more candidates with a small total of the running cost and the initial cost when the air volume adjustment device is installed are extracted, and candidates for the preferred arrangement of the air volume adjustment device are determined. The method for determining candidates for the arrangement of the air volume adjustment device according to any one of claims 1 to 5. Claims 7. The ratio of the air-conditioning load of each air-conditioned target space is determined from the space information (12) including the usage time, usage, volume, direction, or floor plan of each air-conditioned target space. The method for determining candidates for the arrangement of the air volume adjustment device according to claim 3. Claims 8. The trend of the air-conditioning load is obtained by allocating the power consumption of the equipment related to the air-conditioning of the entire building at each time by the ratio of the air-conditioning load of each air-conditioned target space. The method for determining candidates for the arrangement of the air volume adjustment device according to claim 3. Claims 9. The power consumption of the equipment related to the air-conditioning of the entire building at each time is determined from the measured data of the equipment related to the air-conditioning installed in the building. Method for determining candidate positions for arranging an air volume adjustment device according to claim 8.

10. Determining the ratio of the air conditioning load from operation data of an air conditioning system including the air supply volume and the air supply temperature to each air-conditioned space. Method for determining candidate positions for arranging an air volume adjustment device according to claim 3.

11. An air volume adjustment device (A) for sending conditioned air to a plurality of air-conditioned spaces, A duct piping (3, 4) system, An air conditioning load trend calculation unit (40) that calculates the trend of the air conditioning load, which is the degree of increase or decrease of the air conditioning load, for each of the plurality of air-conditioned spaces, and an arrangement candidate determination unit (50) that determines candidates for the preferred arrangement of the air volume adjustment device, and an arrangement candidate determination device (100) that determines the candidate positions for arranging the air volume adjustment device. Comprising: The arrangement candidate determination unit determines candidates for the preferred arrangement of the air volume adjustment device in the duct piping system based on the trend of the air conditioning load. The air volume adjustment device is arranged at the candidate position determined by the arrangement candidate determination unit to send the conditioned air to each air-conditioned space. An air conditioning air supply system (1).

12. The arrangement candidate determination unit determines candidates for the preferred arrangement of the air volume adjustment device in the duct piping system based on the trend of the air conditioning load, which is the degree of increase or decrease of the air conditioning load for each of the plurality of air-conditioned spaces by time period. The air conditioning air supply system according to claim 11.

13. The arrangement candidate determination unit Determines candidates for the preferred arrangement of the air volume adjustment device such that the air volume adjustment device is arranged in each of the duct pipings extending to a plurality of air-conditioned spaces having different trends of the air conditioning load. The air conditioning air supply system according to claim 11 or 12.

14. The arrangement candidate determination unit Further considers the constraint information on the arrangement of the air volume adjustment device in the physical duct piping system to determine candidates for the preferred arrangement of the air volume adjustment device. The air conditioning air supply system according to claims 11 to 13.

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