Air conditioning enthalpy difference method laboratory

This laboratory uses the air enthalpy difference method to measure the cooling capacity, heating capacity, low-temperature non steady state heating capacity, power consumption of room air conditioning C.O.P.、 Circulating air volume and seasonal energy consumption efficiency. It can be used as a detection device for room air conditioning and an important means of design and development. The laboratory conditions comply with the requirements of GB/T 7725-2004 and JIS B 8615-1.

This laboratory consists of two rooms (indoor and outdoor), each equipped with an air handling unit to control the air condition in each room. In addition, the indoor side contains a set of air volume measuring devices for measuring the air volume and outlet enthalpy of the tested machine. The air volume measuring device includes a static pressure box, a receiving room, nozzles, and induced draft fans.

The measurement method is to install the tested air conditioner in the actual way, control the dry and wet bulb temperatures on the indoor and outdoor sides of the tested unit, measure the temperature, humidity, and air volume of the indoor unit's inlet and outlet air, and calculate the cooling and heating capacity.

This laboratory can be expanded into a one to three enthalpy difference laboratory (consisting of four constant temperature chambers), which can conduct tests on one to three air conditioners or independently conduct tests on two sets of one to one air conditioners simultaneously.

Test project

1. Rated cooling capacity test

2. Rated heating capacity test

3. Maximum operating refrigeration test

4. Minimum operating refrigeration test

5. Maximum operating heating test

6. Minimum operating heating test

7. Freezing test

8. Condensation test

9. Condensation water removal test

10. Automatic defrosting test

Technical specifications (the following specifications are for reference only and can also be customized according to user requirements)

1. Indoor dry bulb temperature range: 15-45 ℃

2. Indoor relative humidity range: 30-85% RH

3. Outdoor dry bulb temperature range: - 15 ～ 55 ℃

4. Outdoor relative humidity range: 30-90% RH

5. Cooling capacity test range: 2.0-15 kW

6. Heating capacity test range: 2.0-16 kW

7. Measurement range of indoor air volume of the tested air conditioner: 4-40 m3/min

8. Dry bulb temperature control accuracy: ± 0.2 ℃

9. Wet bulb temperature control accuracy: ± 0.2 ℃

10. Repeatability accuracy: ± 1%

11. Accuracy and precision: ± 2%

12. Control mode: manual control or automatic control

13. Laboratory specifications: 3HP air conditioning enthalpy difference laboratory, 5HP air conditioning enthalpy difference laboratory, 10HP air conditioning enthalpy difference laboratory, 15HP air conditioning enthalpy difference laboratory, 10HP one to two air conditioning enthalpy difference laboratory, 10HP one to three air conditioning enthalpy difference laboratory