应用R410A制冷剂的补气增焓热泵型电动汽车空调的制热性能实验研究

Heating performance experiment of electric vehicle air conditioner with supplying air and increasing enthalpy for cooling and R410A as refrigerant

测试了新开发的应用R410A制冷剂的补气增焓热泵型电动汽车空调的制热性能,并与原应用R134a制冷剂的普通热泵机组的制热性能进行了比较。实验结果表明,新系统能可靠运行在-15℃及以上的低温制热区间,压缩机排气温度可以控制在56.3~83.0℃,机组制热量比R134a系统提升了17%,0℃以上的整体能效提升了21%。新系统解决了R134a系统低温工况下排气温度高、制热性能衰减严重的问题。

Tests the heating performance of a new electric vehicle air conditioner with supplying air and increasing enthalpy for cooling and R410A as refrigerant, and compares with the heating performance of ordinary heat pump unit using R134a refrigerant. The experimental results show that the new system can run reliably in the low temperature heating range of-15℃ and above, the compressor discharge temperature can be controlled from 56.3℃ to 83℃, the heating capacity of the unit is 17% higher than that of the R134a system, and the overall energy efficiency above 0℃ increases by 21%. The new system solves the problem of high discharge temperature and severe attenuation of heating performance in the original system at low temperatures.