摘要
本文以R22为工质,通过对风冷热泵冷热水机组节流装置替代后在不同的试验工况下进行实验测试,比较了系统使用热力膨胀阀和电子膨胀阀下制冷量和能效比,得出了使用电子膨胀阀可以提高系统性能的结论。
we have conducted comprehensive analysis of performance and reasons of air-cooled heat pump at different work condition by experimental test using R22 as refrigerant. Compared the result using different throttle valve gear, got the conclusion that the system＇s performance getting great improve using electronic expanding valve than thermal expanding valve.
出处
《制冷与空调（四川）》
2006年第1期17-19,31,共4页
Refrigeration and Air Conditioning
关键词
风冷热泵
节流装置
系统性能
实验研究
air-cooled he.at pump
throttle valve gear
performance, experimental research
