摘  要：热泵机组制冷量一定时，温差变化，则流量随之变化。本文先通过理论分析温度及流量对机组功率的影响，再通过实验测定机组制冷量一定时，热泵机组在不同的工况下的功率，对机组功率影响的因素包括两方面，即温度和流量。

关键词：温度；流量；双因素；功率

Abstract: When the cooling capacity of the heat pump unit remains constant, the temperature difference changes, then the flow rate changes. Firstly the paper theoretically analyses the influence of temperature and flow rate on the power of the unit, then through experimental method tests the power of the heat pump unit under