7℃工况下R417a和R22用于空气源热泵热水器的试验研究  

Experimental Research of Air-source Heat Pump Water Heater with R417a and R22 under 7℃ Operating Mode

作　　者：朱兴旺 仇富强 尹斌 郭粉英 

机构地区：[1]郑州轻工业学,河南郑州450002 [2]广州中宇冷气科技发展有限公司,广东广州510935

出　　处：《流体机械》2009年第6期57-59,69,共4页Fluid Machinery

摘　　要：在7℃工况下对R417 a用于空气源热泵热水器进行了试验,并在不同进水温度下对吸排气压力、吸排气温度、消耗功率、制热功率、热效率等方面与R22进行了对比分析。结果表明,7℃工况下混合工质R417 a用于热泵热水器时,它的排力压力,输入功率低于R22,制热功率易受水温影响,制热量低于R22,性能系数下降迅速,但平均性能系数比R22略高。An experiment is carried out on the R417a used in air resource heat pump water heater under different hot water temperature under 7℃ operating mode. The discharge pressure, power input and Coefficient of Performance（COP） of the R417a are analyzed compared to R22. The result shows that the discharge pressure , compressor power input is lower than the R22 when mixed working substance R417a, the thermal power is reliable being effected by the temperature of hot water, the cop of the R417a drops rapidly, but its average cop is slightly higher than the R22 system.

关 键 词：工况 R417A 空气源热泵热水器 功率 性能系数 

分 类 号：TQ051.5[化学工程]