Performance testing apparatus and operating method for a cold-air-cooled integrated machine.

Abstract

This invention discloses a performance testing apparatus for a cold-air-cooled integrated machine. [Solution] The system includes an environmental laboratory and a test control unit, the environmental laboratory being provided with a first air duct, a second air duct, and a third air duct, the first air duct being used to deliver temperature and humidity regulated airflow from inside the environmental laboratory and / or the second air duct to the evaporator inlet of the air conditioner under test, the second air duct being used to discharge the airflow at the evaporator outlet of the air conditioner under test to at least one of the following locations: outside the environmental laboratory, inside the environmental laboratory, and the first air duct, the third air duct being used to discharge the airflow at the condenser outlet of the air conditioner under test to at least one of the following locations: outside the environmental laboratory and inside the environmental laboratory, and the test control unit being used to control the airflow rate at each location.

Description

Technical Field

[0001] The present invention relates to a test apparatus for an air conditioner system and an operating method thereof, and particularly to a performance test apparatus for a cold air air-cooled integrated machine and an operating method thereof.

Background Art

[0002] In the research and development and quality inspection of split-type air conditioner products, an enthalpy difference laboratory is generally used to provide a test environment. The enthalpy difference laboratory is provided with an internal environment laboratory and an external environment laboratory, and a series of energy-intensive equipment such as a high-power electric heater, an electric humidifier, a refrigeration unit, a water pump, and a blower is installed. In a conventional enthalpy difference laboratory, a temperature control electric heater of 60 kW or more and an electric humidifier are required in the internal environment laboratory. In the external environment laboratory, it is necessary to install a refrigeration unit with a refrigeration capacity of 100 kW or more and a temperature control electric heater. The maximum operating power of the laboratory environmental equipment reaches about 150 kW. Adding the power consumption of the unit itself, the maximum operating power of the laboratory is about 180 kW, and the operating cost becomes very high. Furthermore, since the conventional enthalpy difference laboratory has the internal environment laboratory and the external environment laboratory provided separately, it is not suitable for the performance test of an integrated air conditioner unit.

[0003] In order to address the problem of high energy consumption for operation in a conventional enthalpy difference laboratory, in the prior art, there are measures to add an intermediate heat exchanger. In these measures, the cold and heat energy generated from the test target unit is recovered, and the temperature of the test environment is adjusted to achieve the purpose of energy conservation. However, in the secondary heat exchange through the heat exchanger, the heat exchange temperature difference becomes small, so the recoverable energy is limited, and there may be cases where heat recovery is impossible depending on the test conditions. In addition, based on the structure of the conventional enthalpy difference laboratory, a circulation water pump for the heat exchanger and the flow of the medium is added indoors and outdoors respectively, so the complexity of the test system increases and the power consumption also increases.

Summary of the Invention

[0004] In response to the aforementioned conventional technical shortcomings, the present invention aims to provide a performance testing apparatus for a cold-air-cooled integrated air conditioner and a method for operating the performance testing apparatus for a cold-air-cooled integrated air conditioner, in order to solve the problem that integrated air conditioners cannot be tested in an enthalpy difference laboratory and that the energy consumption for testing is high. [Means for solving the problem]

[0005] The technical solution of the present invention is as follows: The performance testing apparatus for a cold-air-cooled integrated air conditioner includes an environmental laboratory and a test control unit, the environmental laboratory being provided with a first air duct, a second air duct and a third air duct, the first air duct being used to send temperature and humidity-adjusted airflow from inside the environmental laboratory and / or the second air duct to the air intake of the evaporator of the air conditioner under test, and the second air duct being used to send airflow at the outlet of the evaporator of the air conditioner under test to the outside of the environmental laboratory, inside the environmental laboratory and the first air duct The third air duct is used to discharge the airflow from the condenser outlet of the air conditioner under test to at least one location inside or outside the environmental laboratory. The test control unit is used to control the airflow rate of the airflow at the evaporator outlet that discharges to the outside of the environmental laboratory, inside the environmental laboratory, and to the first air duct, and also to control the airflow rate of the airflow at the condenser outlet that discharges to the inside of the environmental laboratory and outside the environmental laboratory.

[0006] Furthermore, an electric heater and an electric humidifier are installed in the first air duct, the outlet end of the second air duct is connected to a first exhaust port located outside the environmental laboratory via a first air valve, communicates with the interior of the environmental laboratory via a second air valve, and is connected to the first air duct via a third air valve, the connection point of the third air valve to the first air duct is located ahead of the electric heater and electric humidifier in the direction of airflow, and the test control unit controls the opening degrees of the first air valve, the second air valve and the third air valve.

[0007] Furthermore, a first blower is installed in the second air duct, and the first blower is located ahead of the outlet end of the second air duct in the direction of airflow. The test control unit controls the airflow rate passing through the evaporator of the air conditioner under test by controlling the rotation speed of the first blower.

[0008] Furthermore, a first temperature sensor is installed in the first air duct, and the first temperature sensor is located in the direction of airflow, after the connection point of the third air valve to the first air duct and before the electric heater and the electric humidifier, and the test control unit controls the opening degree of the third air valve based on the difference between the temperature measured by the first temperature sensor and the set intake air temperature on the evaporator side.

[0009] Furthermore, a first temperature and humidity sensor is installed in the first air duct, and the first temperature and humidity sensor is located behind the electric heater and the electric humidifier in the direction of airflow. The test control unit controls the power of the electric heater based on the difference between the temperature measured by the first temperature and humidity sensor and the set intake air temperature on the evaporator side. The test control unit also controls the power of the electric humidifier based on the difference between the humidity measured by the first temperature and humidity sensor and the set intake air humidity on the evaporator side.

[0010] Furthermore, the outlet end of the third air duct is connected to a second exhaust port located outside the environmental laboratory via a fourth air valve, and also connected to the interior of the environmental laboratory via a fifth air valve, and the test control unit controls the opening degree of the fourth air valve and the fifth air valve.

[0011] Furthermore, a second blower is installed in the third air duct, and the second blower is located ahead of the fourth air valve and the fifth air valve in the direction of airflow. The test control unit controls the airflow rate passing through the condenser of the air conditioner under test by controlling the rotation speed of the second blower.

[0012] Furthermore, a second temperature sensor is provided inside the environmental laboratory, and the test control unit controls the opening of the fourth air valve and the fifth air valve based on the difference between the temperature measured by the second temperature sensor and the set intake air temperature on the condenser side.

[0013] Furthermore, a circulating fan is installed in the environmental laboratory, and the circulating fan circulates the air inside the environmental laboratory to equalize the temperature and humidity inside the laboratory.

[0014] Another technical solution of the present invention is as follows: The operating method of the performance testing apparatus for a cold air-cooled integrated machine is as follows: If the temperature of the airflow in the first air duct before temperature and humidity adjustment is higher than the set intake air temperature on the evaporator side, the first air duct is controlled to increase the airflow rate from the second air duct. If the temperature of the airflow in the first air duct before temperature and humidity adjustment is lower than the set intake air temperature on the evaporator side, the first air duct is controlled to reduce the airflow rate from the second air duct. A step of controlling the amount of temperature adjustment of the airflow before it is sent to the evaporator inlet of the air conditioner under test, based on the difference between the temperature at the evaporator inlet and the set intake air temperature on the evaporator side, A step of controlling the amount of humidity adjustment of the airflow before it is sent to the evaporator inlet of the air conditioner under test, based on the difference between the humidity at the evaporator inlet and the set intake air humidity on the evaporator side, If the temperature inside the environmental laboratory is higher than the set intake air temperature on the condenser side, the steps include controlling the airflow at the evaporator outlet to discharge air into the environmental laboratory and stop discharge to the outside of the environmental laboratory, increasing the airflow rate discharged to the outside of the environmental laboratory, and controlling the third air duct to decrease the airflow rate discharged into the environmental laboratory, The method includes the step of controlling the airflow at the evaporator outlet to discharge air to the outside of the environmental laboratory and stop discharge to the inside of the environmental laboratory when the temperature inside the environmental laboratory is lower than the set intake air temperature on the condenser side, thereby reducing the airflow rate discharged to the outside of the environmental laboratory and controlling the third air duct to increase the airflow rate discharged to the inside of the environmental laboratory. [Effects of the Invention]

[0015] Compared to the prior art, the advantages of the technical solution of the present invention are as follows:

[0016] This invention can be directly applied to performance testing of air-cooled integrated units. Unlike conventional enthalpy difference laboratories, this invention does not require dedicated indoor and refrigeration units to maintain test environment parameters, nor does it require additional heat exchangers to utilize the cooling energy of the unit under test. By simply adjusting the air valve piping, this invention utilizes the amount of refrigeration and condensation heat generated by the unit under test itself during the test to adjust the temperature and humidity of the test environment required for the air conditioner under test. By combining a low-power electric heater and electric humidifier, the temperature and humidity of the test environment (the airflow passing through the evaporator and condenser of the air conditioner under test) can be adjusted to meet the test requirements. This invention allows for testing the performance of the air conditioner under test under normal refrigeration conditions, reduces the power required to adjust environmental parameters, and lowers the economic cost of unit testing. [Brief explanation of the drawing]

[0017] [Figure 1] It is a schematic diagram of the structure of a performance test device for a cold air air-cooled integrated machine.

Embodiments for Carrying out the Invention

[0018] Hereinafter, the present invention will be further described with reference to embodiments, but the present invention is not limited thereto.

[0019] As shown in FIG. 1, a performance test device for a cold air air-cooled integrated machine according to an embodiment of the present invention includes an environmental laboratory 100 and a test control unit. In the environmental laboratory 100, a first air duct 1, a second air duct 2, and a third air duct 3 are provided. The test control unit may be provided inside the environmental laboratory 100a or outside the environmental laboratory 100b. In this embodiment, an electric control panel 5 is installed inside the environmental laboratory 100a, and the test control unit is located within the electric control panel 5.

[0020] In the first air duct 1, in the direction of the air flow, a first inlet 101, a first temperature sensor 102, an electric heater 103, an electric humidifier 104, a first temperature and humidity sensor 105, a first air volume test unit 106, and a first port 107 are sequentially provided. The first inlet 101 is provided inside the environmental laboratory 100a.

[0021] In the second air duct 2, in the direction of the air flow, a second port 201, a second temperature and humidity sensor 202, a first blower 203, a first air valve 204, and a first exhaust port 205 are sequentially provided. The first exhaust port 205 is provided outside the environmental laboratory 100b.

[0022] Between the first blower 203 and the first air valve 204, a second air valve 206 and a third air valve 207 are connected in parallel. The other end of the second air valve 206 is connected to an air duct and communicates to inside the environmental laboratory 100a. The other end of the third air valve 207 is connected between the first inlet 101 and the first temperature sensor 102 in the first air duct 1.

[0023] The air conditioner 7 to be tested is installed inside the environmental laboratory 100a. The inlet of the evaporator of the air conditioner 7 to be tested is connected to the first port 107, and the outlet of the evaporator of the air conditioner 7 to be tested is connected to the second port 201. The first air duct 1 is used to send the air flow after temperature and humidity adjustment from inside the environmental laboratory 100a and / or the second air duct 2 to the inlet of the evaporator of the air conditioner 7 to be tested. The second air duct 2 is used to discharge the air flow at the outlet of the evaporator of the air conditioner 7 to be tested to at least one of the outside 100b of the environmental laboratory, inside the environmental laboratory 100a, and the first air duct 1.

[0024] In the third air duct 3, in the direction of the air flow, the third port 306, the second air volume test section 304, the second blower 303, the fourth air valve 302, and the second exhaust port 301 are sequentially provided. Here, the second exhaust port 301 is provided outside the environmental laboratory 100b. A fifth air valve 307 is connected in parallel between the fourth air valve 302 and the second blower 303, and the other end of the fifth air valve 307 communicates to inside the environmental laboratory 100a.

[0025] The outlet of the condenser of the air conditioner 7 to be tested is connected to the third port 306, and the third air duct 3 is used to discharge the air flow at the outlet of the condenser of the air conditioner 7 to be tested to at least one of the outside 100b of the environmental laboratory and inside the environmental laboratory 100a.

[0026] A second temperature sensor 4 for measuring the temperature inside the environmental laboratory 100a is installed inside the environmental laboratory 100a.

[0027] A circulation fan 601 for flowing the air inside the environmental laboratory 100a to improve the uniformity of the temperature and humidity inside the test environmental laboratory 100a is installed inside the environmental laboratory 100a.

[0028] The test control unit includes a receiving unit 501, a calculation unit 502, an adjustment unit 503, and a setting unit 504. The first temperature sensor 102, the second temperature sensor 4, the first temperature and humidity sensor 105, the first airflow test unit 106, the second temperature and humidity sensor 202, and the second airflow test unit 304 are each connected to the receiving unit 501 via cables. In addition, temperature sensors are attached to the walls of the compressor inlet pipe and outlet pipe, the condenser outlet pipe and the throttle device outlet pipe, respectively, inside the air conditioner under test 7. These temperature sensors inside the air conditioner under test 7, as well as the motors of the compressor, the evaporator blower, and the condenser blower of the air conditioner under test 7, are all connected to the receiving unit 501 via cables. The first blower 203, the second blower 303, the electric heater 103, the electric humidifier 104, the first air valve 204, the second air valve 206, the third air valve 207, the fourth air valve 302, and the fifth air valve 307 are each connected to the adjustment unit 503 via cables.

[0029] The setting unit 504 sets the intake air temperature on the evaporator side as T1, the humidity as RH1, the airflow rate as L1, the temperature measured by the first temperature sensor 102 (temperature of the airflow in the first air duct 1 and temperature before humidity adjustment) as T2, the temperature measured by the first temperature and humidity sensor 105 (temperature at the evaporator inlet) as T3, the humidity (humidity at the evaporator inlet) as RH3, the airflow rate measured by the first airflow test unit 106 as L2, the temperature measured by the second temperature and humidity sensor 202 as T4, and the humidity as RH4. The opening of the third air valve 207 is adjusted based on the difference between T2 and T1, the power of the electric heater 103 is adjusted based on the difference between T3 and T1, the power of the electric humidifier 104 is adjusted based on the difference between RH3 and RH1, and the rotational speed of the first blower 203 is adjusted based on the difference between L2 and L1.

[0030] The setting unit 504 sets the intake air temperature on the capacitor side as T5, the air volume as L5, the temperature measured by the second temperature sensor 4 (the temperature at the inlet of the capacitor) as T6, and the air volume measured by the second air volume test unit 304 as L6. The opening degrees of the fourth air valve 302 and the fifth air valve 307 are adjusted based on the difference between T6 and T5, and the rotation speed of the second blower 303 is adjusted based on the difference between L6 and L5.

[0031] The operation method of the performance test device for the cold air air-cooled integrated machine is as follows.

[0032] The test control unit is used to control the air flow rate of the air flow at the outlet of the evaporator discharged to the inside 100a of the environmental laboratory, the outside 100b of the environmental laboratory, and the first air duct 1, and to control the air flow rate of the air flow at the outlet of the capacitor discharged to the inside 100a of the environmental laboratory and the outside 100b of the environmental laboratory.

[0033] When the temperature of the air flow in the first air duct 1 and the temperature before adjusting the temperature and humidity are higher than the set intake air temperature on the evaporator side, controlling the first air duct 1 to increase the air flow rate from the second air duct 2; when the temperature of the air flow in the first air duct 1 and the temperature before adjusting the temperature and humidity are lower than the set intake air temperature on the evaporator side, controlling the first air duct 1 to decrease the air flow rate from the second air duct 2. Specifically, it is as follows.

[0034] When T2 > T1, increase the opening degree of the third air valve 207, use the sensible heat refrigeration capacity of the test target air conditioner 7 to lower the inlet temperature of the electric heater 103, and maintain the intake air temperature of the evaporator of the test target air conditioner 7 within the set temperature range.

[0035] When T2 < T1, decrease the opening degree of the third air valve 207 until it is closed.

[0036] Based on the difference between the temperature at the inlet of the evaporator and the set intake temperature on the evaporator side, controlling the temperature adjustment amount of the air flow before sending it to the inlet of the evaporator of the air conditioner 7 under test; and based on the difference between the humidity at the inlet of the evaporator and the set intake humidity on the evaporator side, controlling the humidity adjustment amount of the air flow before sending it to the inlet of the evaporator of the air conditioner 7 under test. Specifically, it is as follows.

[0037] When T3 > T1, reduce the power of the electric heater 103; when T3 < T1, increase the power of the electric heater 103.

[0038] When RH3 > RH1, reduce the power of the electric humidifier 104; when RH3 < RH1, increase the power of the electric humidifier 104.

[0039] Also, the test control unit controls the air flow rate passing through the evaporator of the air conditioner under test by controlling the rotation speed of the first blower 203. That is, when L2 > L1, reduce the rotation speed of the first blower 203; when L2 < L1, increase the rotation speed of the first blower 203.

[0040] When the temperature measured by the second temperature sensor 4 is higher than the set intake temperature on the condenser side, controlling the air flow at the outlet of the evaporator so as to discharge it to the inside 100a of the environmental test chamber and stop discharging it to the outside 100b of the environmental test chamber, reducing the air flow rate discharged to the inside 100a of the environmental test chamber and increasing the air flow rate discharged to the outside 100b of the environmental test chamber by controlling the third air duct 3; when the temperature measured by the second temperature sensor 4 is lower than the set intake temperature on the condenser side, controlling the air flow at the outlet of the evaporator so as to discharge it to the outside 100b of the environmental test chamber and stop discharging it to the inside 100a of the environmental test chamber, increasing the air flow rate discharged to the inside 100a of the environmental test chamber and reducing the air flow rate discharged to the outside 100b of the environmental test chamber by controlling the third air duct 3.

[0041] Specifically, it is as follows.

[0042] When T6 > T5, by increasing the opening degree of the fourth air valve 302 and decreasing the opening degree of the fifth air valve 307, the utilization rate of the condensation heat is reduced. The excess heat is released to the outside 100b of the environmental laboratory through the second exhaust port 301. The second air valve 206 opens and the first air valve 204 is closed. The sensible heat refrigeration capacity by the air conditioner 7 under test is released into the environmental laboratory interior 100a and is used for reducing the temperature of the environmental laboratory interior 100a. The intake air temperature of the condenser of the air conditioner 7 under test can be maintained within the set temperature range.

[0043] When T6 < T5, by decreasing the opening degree of the fourth air valve 302 and increasing the opening degree of the fifth air valve 307, the utilization rate of the condensation heat is increased. The intake air temperature of the condenser of the air conditioner 7 under test is maintained within the set temperature range. The second air valve 206 is closed and the first air valve 204 opens. The excess sensible heat refrigeration capacity by the air conditioner 7 under test is released to the outside 100b of the environmental laboratory.

[0044] Also, the test control unit controls the air flow rate passing through the condenser of the air conditioner under test by controlling the rotation speed of the second blower 303. That is, when L6 > L5, the rotation speed of the second blower 303 is decreased, and when L6 < L5, the rotation speed of the second blower 303 is increased.

[0045] When actually performing a performance test on the air conditioner under test, the test parameters include overall performance parameters and refrigeration system parameters. Here, the overall performance parameters include the air volume of the air processed by the unit, the temperature and humidity at the inlet, the temperature and humidity at the outlet, the inlet temperature of the air on the condenser side, the refrigeration capacity, the dehumidification capacity, the power consumption of the compressor, and the total power consumption. The refrigeration system parameters include the intake temperature and pressure of the compressor, the exhaust temperature and pressure, the liquid outlet temperature from the condenser, and the outlet temperature of the throttle device.

[0046] The calculation unit 502 calculates the enthalpy value based on the received temperature and humidity values, and calculates the cooling capacity of the air conditioner under test based on the enthalpy value and airflow rate. The calculation unit 502 also calculates the total power consumption of the air conditioner under test based on the received motor power of the compressor, the motor power of the evaporator blower, and the motor power of the condenser blower. The specific calculation methods for each of the above physical quantities are all prior art and will not be described in detail in this invention.

[0047] The compressor's intake and exhaust pressures are obtained by referring to the physical property parameter table of the selected refrigerant, based on the difference between the compressor's intake and exhaust temperatures.

[0048] In this invention, the load on the evaporator side is mainly simulated by the condensation heat from the air conditioner 7 under test or the high-temperature air of the environment. In actual testing, an electric heater 103 with appropriate power can be selected according to the operating temperature range and refrigeration amount range of the air conditioner 7 under test.

[0049] According to the performance test method for the air-cooled integrated unit proposed in this invention, when an electric heater 103 with a power of 15 kW is selected, the following test range becomes possible.

[0050] Capacitor airflow: 6000m 3 / h~25000m 3 / h Evaporator airflow: 3500 m³ 3 / h~13000m 3 / h Evaporator side intake air temperature and humidity: 15℃~35℃, 40%RH~80%RH Intake air temperature on the condenser side: 20℃~45℃ Freezing capacity: ≤55kW.

[0051] Under typical test conditions, the set intake air temperature T1 on the evaporator side of the air conditioner 7 under test can be achieved by adjusting the opening of the third air valve 207. The electric heater 103 does not need to be operated. The test requirements can be met simply by adjusting the power of the electric humidifier 104.

[0052] In applications, it is also possible to recycle condensed water by guiding a portion of the condensed water from the test air conditioner 7 through piping to the water inlet of the electric humidifier 104.

Claims

1. A performance testing apparatus for a cold-air-cooled integrated machine, comprising an environmental laboratory and a test control unit, wherein the environmental laboratory is provided with a first air duct, a second air duct, and a third air duct, the first air duct is used to deliver temperature and humidity-adjusted airflow from inside the environmental laboratory and / or the second air duct to the air intake of the evaporator of the cold-air-cooled integrated machine under test, and the second air duct delivers the airflow at the evaporator outlet of the cold-air-cooled integrated machine under test to at least one of the following locations: outside the environmental laboratory, inside the environmental laboratory, and the first air duct. A performance testing apparatus for a cold-air-cooled integrated machine, characterized in that it is used for discharge, the third air duct is used to discharge the airflow at the outlet of the condenser of the cold-air-cooled integrated machine under test to at least one location between the inside and outside of the environmental laboratory, and the test control unit is used to control the airflow rate of the airflow at the outlet of the evaporator discharged to the outside of the environmental laboratory, the inside of the environmental laboratory, and the first air duct, and also to control the airflow rate of the airflow at the outlet of the condenser discharged to the inside and outside of the environmental laboratory.

2. The cold air-cooled integrated machine performance testing apparatus according to claim 1, characterized in that an electric heater and an electric humidifier are installed in the first air duct, the outlet end of the second air duct is connected to a first exhaust port located outside the environmental laboratory via a first air valve, communicates with the interior of the environmental laboratory via a second air valve, is connected to the first air duct via a third air valve, the connection point of the third air valve to the first air duct is located ahead of the electric heater and electric humidifier in the direction of airflow, and the test control unit controls the opening degrees of the first air valve, the second air valve and the third air valve.

3. The performance testing apparatus for a cold-air-cooled integrated machine according to claim 2, characterized in that a first blower is installed in the second air duct, the first blower is located ahead of the outlet end of the second air duct in the direction of airflow, and the test control unit controls the airflow rate passing through the evaporator of the cold-air-cooled integrated machine under test by controlling the rotational speed of the first blower.

4. The performance testing apparatus for a cold air-cooled integrated machine according to claim 2, characterized in that a first temperature sensor is installed in the first air duct, the first temperature sensor is located in the direction of airflow after the connection point of the third air valve to the first air duct and before the electric heater and the electric humidifier, and the test control unit controls the opening degree of the third air valve based on the difference between the temperature measured by the first temperature sensor and the set intake air temperature on the evaporator side.

5. The performance testing apparatus for a cold-air-cooled integrated machine according to claim 2, characterized in that a first temperature and humidity sensor is installed in the first air duct, the first temperature and humidity sensor is located behind the electric heater and the electric humidifier in the direction of airflow, the test control unit controls the power of the electric heater based on the difference between the temperature measured by the first temperature and humidity sensor and the set intake air temperature on the evaporator side, and the test control unit controls the power of the electric humidifier based on the difference between the humidity measured by the first temperature and humidity sensor and the set intake air humidity on the evaporator side.

6. The performance testing apparatus for a cold-air-cooled integrated machine according to claim 2, characterized in that the outlet end of the third air duct is connected to a second exhaust port provided outside the environmental laboratory via a fourth air valve and also connected to the inside of the environmental laboratory via a fifth air valve, and the test control unit controls the opening degrees of the fourth air valve and the fifth air valve.

7. The performance testing apparatus for a cold-air-cooled integrated machine according to claim 6, characterized in that a second blower is installed in the third air duct, the second blower is located in front of the fourth air valve and the fifth air valve in the direction of airflow, and the test control unit controls the airflow rate passing through the condenser of the cold-air-cooled integrated machine under test by controlling the rotational speed of the second blower.

8. The performance testing apparatus for a cold-air-cooled integrated machine according to claim 6, wherein a second temperature sensor is provided inside the environmental laboratory, and the test control unit controls the opening of the fourth air valve and the fifth air valve based on the difference between the temperature measured by the second temperature sensor and the set intake air temperature on the condenser side.

9. The performance testing apparatus for a cold-air-cooled integrated machine according to claim 1, characterized in that a circulating fan is installed in the environmental laboratory, and the circulating fan circulates the air inside the environmental laboratory to make the temperature and humidity inside the environmental laboratory uniform.

10. A method for operating a performance test apparatus for a cold air-cooled integrated machine according to any one of claims 1 to 9, If the temperature of the airflow in the first air duct before temperature and humidity adjustment is higher than the set intake air temperature on the evaporator side, the first air duct is controlled to increase the airflow rate from the second air duct. If the temperature of the airflow in the first air duct before temperature and humidity adjustment is lower than the set intake air temperature on the evaporator side, the first air duct is controlled to reduce the airflow rate from the second air duct. A step of controlling the amount of temperature adjustment of the airflow before it is sent to the evaporator inlet of the cold-air-cooled integrated machine under test, based on the difference between the temperature at the evaporator inlet and the set intake air temperature on the evaporator side, A step of controlling the amount of humidity adjustment of the airflow before it is sent to the evaporator inlet of the cold-air-cooled integrated machine under test, based on the difference between the humidity at the evaporator inlet and the set intake air humidity on the evaporator side, If the temperature inside the environmental laboratory is higher than the set intake air temperature on the condenser side, the third air duct is controlled to control the airflow at the evaporator outlet so as to discharge air into the environmental laboratory and stop discharge to the outside of the environmental laboratory, thereby increasing the airflow rate discharged to the outside of the environmental laboratory and decreasing the airflow rate discharged into the environmental laboratory. A method for operating a performance test apparatus for a cold air-cooled integrated machine according to any one of claims 1 to 9, comprising the step of controlling the airflow at the outlet of the evaporator so as to discharge the air to the outside of the environmental laboratory and stop discharging it into the environmental laboratory when the temperature inside the environmental laboratory is lower than the set intake air temperature on the condenser side, thereby reducing the airflow rate discharged to the outside of the environmental laboratory and controlling the third air duct to increase the airflow rate discharged into the environmental laboratory.

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