热泵型房间空调器性能试验分析

Performance test on heat pump room air conditioners

根据GB21455—2019,分别对2套变频房间空调器及2套定频房间空调器进行性能测试。结果显示,变频房间空调器低温制冷工况选用实测法得到的APF高于公式计算法得到的APF,定频房间空调器的APF接近。根据测试结果和测试成本,建议变频房间空调器测试时低温制冷工况选用实测法,定频房间空调器测试时低温制冷工况选用公式计算法。

According to GB 21455-2019 standard,the performance tests of two sets of variable frequency room air conditioners and two sets of fixed frequency room air conditioners are carried out respectively.The test results show that for the variable frequency room air conditioners,the APF obtained by tests is much higher than that obtained by calculation method under the low temperature refrigeration,while the difference is small for the fixed frequency room air conditioners.Thus,it is recommended that the actual measurement method shall be used for low-temperature refrigeration in the test of variable frequency room air conditioner,and the formula calculation method shall be used for low-temperature refrigeration in the test of fixed frequency room air conditioner,accroding to thetestresultandtestcost.