Method and device for measuring air conditioner efficiency reduction coefficient

Abstract

The application provides a kind of air conditioner efficiency reduction coefficient measurement method and device, through improved method, specifically, air conditioner efficiency reduction coefficient is reference GB / T7725 document and AHRI210 / 240 document, under the same temperature and humidity condition, test one " low humidity refrigeration test " and test two " intermittent refrigeration test " are carried out, and the two test results are substituted into standard formula calculation to obtain. Solve the two major factors that influence air conditioner efficiency reduction coefficient measurement: improve the stability of test two " intermittent refrigeration test " environment working condition, through increasing automatic compensation control program, let software remember the cold quantity value of air conditioner output, through the accurate control room electricity, keep the room temperature stable, close the same cold quantity size of heating capacity when air conditioner stops, start the same cold quantity size of electric heating when air conditioner starts, make the internal working condition temperature of laboratory keep stable during the test air conditioner starts and starts and stops, fluctuation control is within ±1 DEG C, finally reach the purpose of accurate measurement.

Description

Technical Field

[0001] This application relates to the field of air conditioning energy efficiency testing technology, and in particular to a method and apparatus for measuring the efficiency reduction coefficient of an air conditioner. Background Technology

[0002] The air conditioner energy efficiency testing standard AHRI210 / 240-2017 includes a degradation coefficient when calculating the cooling / heating energy efficiency of air conditioners. The degradation coefficient refers to the impact of the reduction in energy efficiency value caused by the compressor's cyclic on-off cycle. The default value of this degradation coefficient in the standard is 0.2 (cooling). In order to improve the energy efficiency value, air conditioner manufacturers need to minimize the impact caused by the compressor's cyclic on-off cycle through technological research and development. This requires a method and measuring device to measure the degradation coefficient.

[0003] Current air conditioning energy efficiency testing methods have several drawbacks. Firstly, laboratory operating temperatures fluctuate significantly. Secondly, measuring the air conditioning efficiency reduction coefficient requires the air conditioning compressor to periodically run and stop. When the air conditioner stops cooling, the sudden decrease in cooling capacity causes a rapid temperature rise, while starting the air conditioner causes a rapid temperature drop, resulting in temperature fluctuations within ±3℃. This unstable environment leads to inaccurate measurement results. Furthermore, heat storage in the air outlet measuring equipment is an inherent issue. Existing technologies often ignore the impact of this heat storage on the measurement results, generally assuming it is small and difficult to measure, thus choosing to disregard its influence. However, the heat storage in laboratory equipment can cause deviations in the measurement results of air conditioning cooling capacity, casting doubt on the accuracy of the air conditioning efficiency reduction coefficient measurement. Summary of the Invention

[0004] In view of the aforementioned problems, this application is made to provide a method and apparatus for measuring the air conditioning efficiency reduction coefficient that overcomes or at least partially solves the aforementioned problems. The method is better and more accurate than current measurement standards.

[0005] To address the aforementioned problems, this invention discloses a method for measuring the air conditioning efficiency reduction coefficient. This method utilizes a heating device to provide heating output, thereby maintaining a stable ambient temperature within the laboratory. The method includes the following steps:

[0006] In a test, the heating equipment of the target air conditioner outputs heat to maintain a stable ambient temperature in the laboratory. The first real-time cooling capacity output by the heating equipment and the second cooling capacity output by the cooling equipment in the laboratory are obtained. Based on the first real-time cooling capacity and the second real-time cooling capacity, the real-time heating capacity output by the heating equipment is determined so that the laboratory operating conditions reach a balanced state.

[0007] The air conditioning reduction coefficient is obtained under these balanced operating conditions and within the preset start-stop cycle.

[0008] Furthermore, it also includes a coefficient correction step; the coefficient correction step includes:

[0009] The air volume is tested by using a Z-shaped duct pre-installed at the air outlet of the target air conditioner; wherein the heating device is installed in the Z-shaped duct, and the frame of the heating device and the Z-shaped duct are made of zinc steel.

[0010] The heat storage coefficients of the Z-shaped duct, the heating device, the target air conditioner, and the refrigeration device are obtained. Based on the air volume and the heat storage coefficients, the air conditioner efficiency reduction coefficient is corrected to obtain the corrected air conditioner efficiency reduction coefficient.

[0011] Furthermore, the heating device is an electric heating device.

[0012] Furthermore, the heating methods of the electric heating equipment include resistance heating, induction heating, electric arc heating, electron beam heating, infrared heating, and dielectric heating.

[0013] Furthermore, the heat source of the electric heating device is an iron-chromium-aluminum heating wire.

[0014] Furthermore, the heat source for the resistance heating is a platinum-rhodium resistance thermometer.

[0015] Furthermore, the start-stop cycle consists of 5 start-stop cycles.

[0016] This invention also discloses a measuring device for the air conditioning efficiency reduction coefficient, the device comprising:

[0017] The environment configuration module is used to obtain the first real-time cooling capacity output by the heating equipment of the test target air conditioner and the second cooling capacity output by the cooling equipment in the laboratory in a stable ambient temperature loop, and to determine the real-time heating capacity output by the heating equipment based on the first real-time cooling capacity and the second real-time cooling capacity, so that the laboratory operating conditions reach a balanced state.

[0018] The efficiency testing module is used to obtain the air conditioning reduction coefficient under the balanced operating conditions and within the preset start-stop cycle.

[0019] To address the aforementioned problems, this invention also discloses an apparatus comprising a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When executed by the processor, the computer program implements the steps of the method for measuring the air conditioning efficiency reduction coefficient as described above.

[0020] To address the aforementioned problems, embodiments of the present invention also disclose a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the method for measuring the air conditioning efficiency reduction coefficient as described above.

[0021] This application has the following advantages:

[0022] In the embodiments of this application, the real-time heating capacity output by the heating device is determined based on the first real-time cooling capacity output by the target air conditioner and the second real-time cooling capacity output by the refrigeration equipment in the laboratory. The air conditioner is periodically started and stopped to perform an air conditioner efficiency reduction coefficient test, thus obtaining the air conditioner efficiency reduction coefficient. This solves the problem of factors affecting the measurement of the air conditioner efficiency reduction coefficient: the stability of the test environment conditions. By adding an automatic compensation control program, the software memorizes the cooling capacity output of the air conditioner. The room temperature is kept stable by precisely controlling the instantaneous electric heating output. When the air conditioner stops, the heating capacity of the same amount is turned off; when the air conditioner starts, the electric heating capacity of the same amount is activated. Compared to the prior art where temperature fluctuations are within ±3℃, this application uses the above method to keep the laboratory internal temperature stable during the start-up and shutdown of the test air conditioner, controlling fluctuations within ±1℃, ultimately achieving the purpose of accurate measurement. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a flowchart of the steps of a method for measuring the air conditioning efficiency reduction coefficient according to an embodiment of this application;

[0025] Figure 2 This is a structural block diagram of an air conditioning efficiency reduction coefficient measuring device provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of a duct structure provided in one embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0028] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] Reference Figure 1 This application illustrates a method for measuring the air conditioning efficiency reduction coefficient according to an embodiment of the present application; the method includes:

[0030] S110. During the start-stop cycle of the target air conditioner, obtain its first real-time cooling capacity and the second cooling capacity output by the refrigeration equipment in the laboratory, and determine the real-time heating capacity output by the heating equipment based on the first real-time cooling capacity and the second real-time cooling capacity, so that the laboratory operating conditions reach a balanced state.

[0031] S120. Under the balanced operating conditions and within the preset start-stop cycle, the air conditioning reduction coefficient is obtained.

[0032] In the embodiments of this application, the real-time heating capacity output by the heating device is determined based on the first real-time cooling capacity output by the target air conditioner and the second real-time cooling capacity output by the refrigeration equipment in the laboratory. The air conditioner is periodically started and stopped to perform an air conditioner efficiency reduction coefficient test, thus obtaining the air conditioner efficiency reduction coefficient. This solves the problem of factors affecting the measurement of the air conditioner efficiency reduction coefficient: the stability of the test environment conditions. By adding an automatic compensation control program, the software memorizes the cooling capacity output of the air conditioner. The room temperature is kept stable by precisely controlling the instantaneous electric heating output. When the air conditioner stops, the heating capacity of the same amount is turned off; when the air conditioner starts, the electric heating capacity of the same amount is activated. Compared to the prior art where temperature fluctuations are within ±3℃, this application uses the above method to keep the laboratory internal temperature stable during the start-up and shutdown of the test air conditioner, controlling fluctuations within ±1℃, ultimately achieving the purpose of accurate measurement.

[0033] The following will further explain a method for measuring the air conditioning efficiency reduction coefficient in this exemplary embodiment.

[0034] As described in step S110, during the start-stop cycle of the target air conditioner, the first real-time cooling capacity output by it and the second real-time cooling capacity output by the refrigeration equipment in the laboratory are obtained. Based on the first real-time cooling capacity and the second real-time cooling capacity, the real-time heating capacity output by the heating equipment is determined to bring the laboratory operating conditions to a balanced state. Specifically, the first real-time cooling capacity output by the target air conditioner and the second real-time cooling capacity output by the refrigeration equipment in the laboratory are obtained, and the real-time heating capacity output by the heating equipment is determined based on the first real-time cooling capacity and the second real-time cooling capacity. The real-time heating capacity is equal to the sum of the first cooling capacity and the second cooling capacity.

[0035] It should be noted that cooling capacity and heating capacity are not only the two most important technical indicators of an air conditioner, but also the two parameters that users should consider first when purchasing an air conditioner. When an air conditioner is operating in cooling mode, the amount of heat removed from a closed space, room, or area per unit time is called cooling capacity, measured in watts (W). When an air conditioner is operating in heating mode, the amount of heat delivered into a closed space, room, or area per unit time is called heating capacity, measured in watts (W).

[0036] In a specific embodiment of the present invention, for example, the current test air conditioner outputs a cooling capacity of 2000W, the laboratory outputs a cooling capacity of 3000W, and the heating equipment outputs a heating capacity of 5000W. The laboratory is in a state of thermal equilibrium, and the operating condition is stable. When the test air conditioner compressor stops, the ordinary laboratory control program will not react. Since the test air conditioner outputs a cooling capacity of 0W at this time, and the laboratory heating capacity is greater than the cooling capacity, the laboratory temperature will rise. Only then will the control program adjust the cooling and heating outputs. After multiple adjustments, the temperature fluctuates for a period of time before returning to stability. However, the newly designed automatic compensation control program will initially record the air conditioner's cooling capacity as 2000W. When it detects that the test air conditioner compressor has stopped, the program immediately controls the heating equipment in the laboratory to reduce its heating capacity by the same amount of 2000W. At this time, the test air conditioner outputs a cooling capacity of 0W, the laboratory outputs a cooling capacity of 3000W, and the electric heating outputs a heating capacity of 3000W. The laboratory still maintains a thermal equilibrium, and the operating condition is stable. Similarly, when the test air conditioner compressor resumed operation and output 2000W of cooling capacity, the program also controlled the laboratory electric heater output to increase by 2000W to offset the cooling capacity output of the test air conditioner. Ultimately, the expected effect was achieved: the internal temperature of the laboratory remained stable during the start-up and shutdown of the test air conditioner, with fluctuations controlled within ±1℃.

[0037] As described in step S120, the air conditioning efficiency reduction coefficient is accurately measured under the balanced operating conditions and within the preset start-stop cycle.

[0038] Specifically, the step of obtaining the air conditioning reduction coefficient under the balanced operating conditions and within the preset start-stop cycle includes: obtaining a first parameter through a low-humidity cooling test and a second parameter through an intermittent cooling test under the balanced operating conditions and within the preset start-stop cycle; and substituting the first parameter and the second parameter into a preset standard calculation formula to obtain the air conditioning reduction coefficient.

[0039] It should be noted that the air conditioning efficiency reduction coefficient is calculated by referring to the standards published in GB / T7725 and AHRI210 / 240. Test 1, "Low Humidity Cooling Test," and Test 2, "Intermittent Cooling Test," were conducted under the same temperature and humidity conditions. The results of these two tests were then substituted into the standard formula. This method addresses two major factors affecting the measurement of the air conditioning efficiency reduction coefficient: improving the stability of the environmental conditions in Test 2, "Intermittent Cooling Test," by adding an automatic compensation control program that allows the software to memorize the cooling output value of the air conditioner; maintaining a stable room temperature by precisely controlling the room's instant heating output; simultaneously shutting down the heating capacity of the equivalent amount when the air conditioner stops; and activating the electric heating capacity of the equivalent amount when the air conditioner starts. This ensures that the laboratory temperature remains stable during the air conditioner's start-up and shutdown, with fluctuations controlled within ±1℃, ultimately achieving accurate measurement.

[0040] In a specific embodiment of the present invention, step S120, "periodically starting and stopping the target air conditioner to perform an air conditioner efficiency reduction coefficient test and obtain the air conditioner efficiency reduction coefficient," can be further explained in conjunction with the following description. The periodic start-stop cycle is 5 start-stop cycles. Through this method, the test of the target air conditioner efficiency reduction coefficient is stabilized within 5 start-stop cycles. Compared to the existing technology, which has a standard start-stop cycle of 10 start-stop cycles, this reduces the test time by half. While meeting the test requirements, it also reduces the test cycle, lowers the test time, and improves test efficiency.

[0041] In one embodiment of the present invention, step S110 includes: obtaining a first cooling capacity output by the current test target air conditioner and a second cooling capacity output by the laboratory; calculating the sum of the first cooling capacity and the second cooling capacity to obtain the total cooling output.

[0042] It's important to note that cooling capacity refers to an air conditioner's ability to cool, specifically the amount of heat transferred from indoors to outdoors per unit of time. Cooling capacity is calculated by multiplying the cooling power by the energy efficiency ratio (EER). A lower EER value indicates greater energy efficiency. For the same cooling capacity, a lower cooling power and a higher EER result in lower electricity consumption (and lower electricity bills). For example, a 3-horsepower wall-mounted air conditioner from a certain brand might have a heating capacity of 8100W and a cooling capacity of 7200W. Its heating power is 2600W, and its cooling power is 2257W. This means that this air conditioner consumes approximately 2.6 kWh of electricity per hour for heating and approximately 2.25 kWh for cooling. Another example is a 3-horsepower floor-standing air conditioner from a certain brand with a heating power of 3050W and a cooling power of 2080W. Its electricity consumption per hour is approximately 3 kWh for heating and approximately 2 kWh for cooling.

[0043] In one embodiment of the present invention, after step S120, a coefficient correction step is further included; the coefficient correction step includes: the coefficient correction step includes:

[0044] A Z-shaped duct 302 was installed at the air outlet of the target air conditioner, and the airflow was tested; wherein, referring to Figure 3 As shown, the heating device 301 is disposed in the Z-shaped air duct 302, and the frame of the heating device 301 and the Z-shaped air duct 302 are made of zinc steel. The heat storage coefficients of the Z-shaped air duct 302, the heating device 301, the target air conditioner, and the surface of the refrigeration equipment are obtained. Based on the air volume and the heat storage coefficient, the air conditioner efficiency reduction coefficient is corrected to obtain the corrected air conditioner efficiency reduction coefficient. The heat storage coefficient is obtained by testing with an electric heating fixture, the Z-shaped air duct, and thermocouples on the inner surface of the equipment.

[0045] The heat storage coefficient of laboratory equipment is obtained through tooling design and experimentation. The heat storage capacity of the equipment can cause deviations in the measurement of air conditioning cooling capacity, thus affecting the calculation of the air conditioning efficiency reduction coefficient. Obtaining and correcting the heat storage coefficient of the laboratory equipment itself can improve the accuracy of the air conditioning efficiency reduction coefficient results.

[0046] It should be noted that the heat storage capacity of the outlet air measurement equipment is determined by the equipment's structure and material composition, and the coefficient is fixed. Knowing the equipment's heat storage coefficient allows for corrections to eliminate its influence on the air conditioning efficiency reduction coefficient. Measuring the heat storage coefficient of the outlet air measurement equipment requires a stable and measurable heat source. A zinc-steel frame is used to prevent heat storage. Specially designed outlet and inlet ducts prevent infrared leakage. Ultimately, the heat storage coefficient of the testing equipment itself is accurately measured, and automatic corrections are implemented. The air conditioning efficiency reduction coefficient measurement results show good repeatability, and the measured values ​​match the air conditioning manufacturer's design expectations.

[0047] In this application, the method described above shortens the measurement time for the air conditioning efficiency reduction coefficient, improves repeatability, and results in greater accuracy, better matching the air conditioning manufacturer's design values. This is primarily because the automatic compensation control program keeps laboratory temperature fluctuations within ±1℃, compared to the ±3℃ fluctuations in ordinary laboratories, resulting in more stable operating conditions. While heat storage in the outlet air measuring equipment is an objective reality, in existing technologies, its influence is often ignored due to its small size and difficulty in measurement. However, in this application, by accurately measuring the equipment's heat storage coefficient and automatically incorporating corrections, the measurement results for the air conditioning efficiency reduction coefficient are made more accurate.

[0048] In one embodiment of the present invention, the heating device 301 is an electric heating device composed of heating wires made of materials with low heat storage coefficient.

[0049] Preferably, the heating method of the electric heating device includes resistance heating, induction heating, arc heating, electron beam heating, infrared heating, and dielectric heating.

[0050] It should be noted that the heat storage coefficient measurement process of the air outlet measuring device involves turning on the heat source, allowing hot air of a certain temperature to enter the device and then blow it out from the outlet, turning off the heat source, and measuring the heat of the air outlet. This heat is the heat stored in the device itself due to the heat storage effect of the materials.

[0051] In one embodiment of this application, the heat source for the resistance heating is a platinum-rhodium resistance thermometer.

[0052] It should be noted that platinum resistance thermometers can be further divided into mica-based, ceramic-based, and thin-film-based types. The aforementioned mica-based platinum resistance thermometer, due to the properties of mica, has a temperature measurement range of -200 to 420℃, and is characterized by high accuracy and stable performance.

[0053] In a specific embodiment of the present invention, the test requires a heat source with stable output, measurability, and low heat storage effect. Electric heating is generally classified into resistance heating, induction heating, arc heating, electron beam heating, infrared heating, and dielectric heating. Resistance heating utilizes the Joule effect of electric current to convert electrical energy into heat energy, with a power factor of 1. The effective electrical power input equals the output heat energy, which can be directly measured and meets the requirements. To minimize the heat storage coefficient of electric heating itself, this application does not use common electric heating tubes, because electric heating tubes have a metal tube outside the heating resistance wire, and there is magnesium oxide powder between the tube and the heating wire. The tube and magnesium oxide powder retain heat for a long time after the electric heating is turned off.

[0054] Advantageously, this application selects exposed iron-chromium-aluminum heating wire as the heat source. The iron-chromium-aluminum heating wire can cool to room temperature within 10 seconds after power is cut off, minimizing the impact on the equipment's heat measurement. Furthermore, considering that some heat from the heating wire is radiated via infrared radiation, some of which radiates out through the air inlet causing heat leakage, and some of which may radiate inside the equipment to the temperature probe causing temperature measurement errors, this application, such as... Figure 3 As shown, it is preferable to use Z-shaped duct 302 (air inlet) to avoid the impact of these two aspects.

[0055] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0056] Reference Figure 2 This application illustrates a device for measuring the air conditioning efficiency reduction coefficient according to an embodiment of the present application. A heating device provides heat output to maintain a stable ambient temperature in the laboratory. The device includes:

[0057] The environment configuration module 110 is used to adjust the heating capacity output by the heating device in real time based on the first cooling capacity output by the current test target air conditioner and the second cooling capacity output by the laboratory, so that the heating capacity is equal to the sum of the first cooling capacity and the second cooling capacity;

[0058] The efficiency testing module 120 is used to test the air conditioner efficiency reduction coefficient by periodically starting and stopping the target air conditioner, and to obtain a precise measurement of the air conditioner efficiency reduction coefficient.

[0059] In one embodiment of the present invention, it further includes:

[0060] An airflow testing module is used to test the airflow through a Z-shaped duct pre-installed at the air outlet of the target air conditioner; wherein the heating device is installed in the Z-shaped duct, and the frame of the heating device and the Z-shaped duct are made of zinc-steel material;

[0061] The test correction module is used to obtain the heat storage coefficients of the Z-shaped air duct, the heating equipment, the target air conditioner, and the surface of the refrigeration equipment. Based on the air volume and the heat storage coefficient, the air conditioner reduction coefficient is corrected to obtain the corrected air conditioner efficiency reduction coefficient.

[0062] Reference Figure 4 The computer device illustrating a method for measuring the air conditioning efficiency reduction coefficient according to the present invention may specifically include the following:

[0063] The computer device 12 described above is in the form of a general-purpose computing device. The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, system memory 28, and bus 18 connecting different system components (including system memory 28 and processing unit 16).

[0064] Bus 18 refers to one or more of several types of bus 18 architectures, including memory bus 18 or memory controller, peripheral bus 18, graphics acceleration port, processor, or local bus 18 using any of the various bus 18 architectures. For example, these architectures include, but are not limited to, Industry Standard Architecture (ISA) bus 18, Micro Channel Architecture (MAC) bus 18, Enhanced ISA bus 18, Audio / Video Electronics Standards Association (VESA) local bus 18, and Peripheral Component Interconnect (PCI) bus 18.

[0065] Computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0066] System memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory 32. Computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (commonly referred to as a "hard disk drive"). Figure 4 Not shown, a disk drive for reading and writing to a removable non-volatile disk (such as a "floppy disk") and an optical disk drive for reading and writing to a removable non-volatile optical disk (such as a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. The memory may include at least one program product having a set (e.g., at least one) of program modules 42 configured to perform the functions of the embodiments of the present invention.

[0067] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory. Such program modules 42 include—but are not limited to—an operating system, one or more application programs, other program modules 42, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of the present invention.

[0068] Computer device 12 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, camera, etc.), and with one or more devices that enable medical personnel to interact with the computer device 12, and / or with any device that enables the computer device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed through input / output (I / O) interface 22. Furthermore, computer device 12 can also communicate with one or more networks (e.g., local area network (LAN)), wide area network (WAN), and / or public networks (e.g., the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of computer device 12 via bus 18. It should be understood that, although... Figure 4 Not shown, it can be combined with computer device 12 to use other hardware and / or software modules, including but not limited to: microcode, device drivers, redundant processing unit 16, external disk drive array, RAID system, tape drive and data backup storage system 34, etc.

[0069] The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, such as implementing the method for measuring the air conditioning efficiency reduction coefficient provided in the embodiments of the present invention.

[0070] That is, when the processing unit 16 executes the above program, it achieves the following: obtaining the first real-time cooling capacity output by the test target air conditioner and the second real-time cooling capacity output by the refrigeration equipment in the laboratory, and determining the real-time heating capacity output by the heating equipment based on the first real-time cooling capacity and the second real-time cooling capacity; wherein, the real-time heating capacity is equal to the sum of the first cooling capacity and the second cooling capacity; periodically starting and stopping the test target air conditioner to perform an air conditioner efficiency reduction coefficient test, and obtaining the air conditioner efficiency reduction coefficient.

[0071] In this embodiment of the invention, a computer-readable storage medium is also provided, on which a computer program is stored, which, when executed by a processor, implements the method for measuring the air conditioning efficiency reduction coefficient as provided in all embodiments of this application:

[0072] That is, when the program is executed by the processor, it implements the following: obtaining the first real-time cooling capacity output by the target air conditioner and the second real-time cooling capacity output by the refrigeration equipment in the laboratory, and determining the real-time heating capacity output by the heating equipment based on the first real-time cooling capacity and the second real-time cooling capacity; wherein the real-time heating capacity is equal to the sum of the first cooling capacity and the second cooling capacity; periodically starting and stopping the target air conditioner to perform an air conditioner efficiency reduction coefficient test, and obtaining the air conditioner efficiency reduction coefficient.

[0073] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-to-signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPOM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that may be used by or in connection with an instruction execution system, apparatus, or device.

[0074] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including—but not limited to—electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of transmitting, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0075] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. These programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the healthcare worker's computer, partially on the healthcare worker's computer, as a standalone software package, partially on the healthcare worker's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the healthcare worker's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider). The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments; similar or identical parts between embodiments can be referred to interchangeably.

[0076] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0077] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0078] The above provides a detailed description of the method and apparatus for measuring the air conditioning efficiency reduction coefficient provided in this application. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A method for measuring the efficiency reduction coefficient of an air conditioner, characterized in that, The method uses heating equipment to generate heat and maintain a stable ambient temperature in the laboratory. The method includes the following steps: During the start-stop cycle of the target air conditioner, the first real-time cooling capacity output and the second cooling capacity output by the refrigeration equipment in the laboratory are obtained, and the real-time heating capacity output by the heating equipment is determined based on the first real-time cooling capacity and the second real-time cooling capacity, so that the laboratory operating conditions reach a balanced state. Under these balanced operating conditions and within a preset start-stop cycle, the air conditioning reduction coefficient is obtained, including: Under these balanced operating conditions and within the preset start-stop cycle, the first parameter is obtained through a low-humidity cooling test, and the second parameter is obtained through an intermittent cooling test. Substitute the first parameter and the second parameter into the preset standard calculation formula to obtain the air conditioning reduction coefficient.

2. The method according to claim 1, characterized in that, It also includes a coefficient correction step; the coefficient correction step includes: The air volume is tested by using a Z-shaped duct pre-installed at the air outlet of the target air conditioner; wherein the heating device is installed in the Z-shaped duct, and the frame of the heating device and the Z-shaped duct are made of zinc steel. The heat storage coefficients of the Z-shaped duct, the heating device, the target air conditioner, and the refrigeration device are obtained. Based on the air volume and the heat storage coefficients, the air conditioner efficiency reduction coefficient is corrected to obtain the corrected air conditioner efficiency reduction coefficient.

3. The method according to claim 1 or 2, characterized in that, The heating device is an electric heating device, and the heating methods of the electric heating device include resistance heating, induction heating, electric arc heating, electron beam heating, infrared heating, and dielectric heating.

4. The method according to claim 3, characterized in that, The heat source of the electric heating device is an iron-chromium-aluminum heating wire.

5. The method according to claim 3, characterized in that, The heat source for the resistance heating is a platinum-rhodium resistance thermometer.

6. The method according to claim 3, characterized in that, The start-stop cycle consists of 5 start-stop cycles.

7. A measuring device for the efficiency reduction coefficient of an air conditioner, characterized in that, The device generates heat through a heating system to maintain a stable ambient temperature within the laboratory. The device includes: The environment configuration module is used to obtain the first real-time cooling capacity output by the heating equipment of the test target air conditioner and the second cooling capacity output by the cooling equipment in the laboratory in a stable ambient temperature loop, and to determine the real-time heating capacity output by the heating equipment based on the first real-time cooling capacity and the second real-time cooling capacity, so that the laboratory operating conditions reach a balanced state. The efficiency testing module is used to obtain the air conditioning reduction coefficient under the balanced operating conditions and within a preset start-stop cycle, including: Under these balanced operating conditions and within the preset start-stop cycle, the first parameter is obtained through a low-humidity cooling test, and the second parameter is obtained through an intermittent cooling test. Substitute the first parameter and the second parameter into the preset standard calculation formula to obtain the air conditioning reduction coefficient.

8. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program, when executed by the processor, implements the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the method as described in any one of claims 1 to 6.

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