结霜工况下热泵空调器性能的理论与实验研究  

Theoretical and Experimental Study on the Performance of Heat Pump under Frost Conditions

作　　者：陈轶光[1] 郭宪民[1] 王成生[1] 

机构地区：[1]天津商学院,天津300134

出　　处：《流体机械》2006年第3期52-57,共6页Fluid Machinery

摘　　要：对热泵空调器在结霜工况下的运行性能进行了理论和实验研究。计算结果表明,热泵在结霜开始时,有助于增大管壁和空气之间的换热系数;当霜层达到一定厚度时热泵的制热能力、性能系数等迅速下降。模型的计算结果和实验结果吻合较好。The theoretical and experimental study of the effects of frost growth on the performance of air source heat pumps has been conducted. The results indicate that the frost accumulation on the surfaces is benefit for increasing the heat transfer coefficient between air and heat transfer surfaces, while frost is thick enough, the heating capacity, coefticient of performance （ COP ） of heat pump and air quality of fan reduce rapidly. The calculated results are conformed to the experimental results better.

关 键 词：热泵 结霜 数值模拟 实验研究 

分 类 号：TQ051.5[化学工程]