低温工况下空气源热泵热水器中R22与R417性能对比

Comparison of performance between R22 and R417A in the air source heat pump water heater under the low temperature environment

在低温环境下,研究了R22与R417A对空气源热泵热水器的性能影响。得出了机组性能系数(COP)、制热量、排气压力、压缩机功率和水箱水温与加热时间的关系。

Under the low temperature environment, R22 and R417A influenced air source heat pump water heater were studied. And come to the relationship between the unit coefficient of performance（COP）, heating capacity, exhaust pressure, tank water temperature, compressor power and heating time.