R290电动汽车热泵空调性能实验研究  

Cooling and Heating Performance of an R290 Heat Pump System for Electric Cars

作　　者：黄广燕 邹慧明[1,2] 唐明生 田长青[1,2] 吴江 于卫滨[1] Huang Guangyan;Zou Huiming;Tang Mingsheng;Tian Changqing;Wu Jiang;Yu Weibin(Technical Institute of Physics and Chemistry,CAS,Beijing,100190,China;University of Chinese Academy of Sciences,Beijing,100049,China)

机构地区：[1]中国科学院理化技术研究所,北京100190 [2]中国科学院大学,北京100049

出　　处：《制冷学报》2020年第6期40-46,共7页Journal of Refrigeration

基　　金：国家自然科学基金(51676201);国家重点研发计划(2018YFB0105900)资助项目。

摘　　要：本文搭建了带水环路的R290电动汽车热泵空调实验台,研究了不同工况下系统的制冷性能和制热性能。实验结果表明:35℃常规制冷工况时,压缩机转速从1800 r/min增加到6600 r/min,系统制冷量从1789 W提升至4027 W,而系统COP从3.65下降至1.82;45℃高温制冷工况时,压缩机转速从2700 r/min增加到4500 r/min,系统制冷量从1973 W提升至3031 W,而系统COP从2.10下降至1.88;在-20℃/20℃低温制热工况、压缩机转速6000 r/min时,系统制热量为2911 W,对应的系统COP为1.80;在-25℃/20℃低温制热工况、压缩机转速3600 r/min时,对应的系统制热量为1658 W、系统COP为2.16。同时发现采用水环路的系统形式,提高了系统的安全可靠性,但与常规循环系统相比,系统性能存在一定程度的衰减,制冷量衰减300~500 W,制热量衰减200~400 W。Responding to the applied air-conditioning requirements for electric cars,an experimental bench for the R290 heat pump system with a secondary medium cycle was established.The cooling and heating performances of the system were tested under various working conditions.As the compressor speed increases from 1800 r/min to 6600 r/min,the cooling capacity increases from 1789 to 4027 W under standard conditions(35℃),while the COP decreases from 3.65 to 1.82.As the compressor speed increases from 2700 r/min to 4500 r/min,the cooling capacity increases from 1973 to 3031 W under extremely warm conditions(45℃),while the COP decreases from 2.10 to 1.88.Under cold conditions(-20℃),the heating capacity of the system reaches 2911 W at 6000 r/min,and the corresponding COP is 1.80.Under extremely cold conditions(-25℃),the heating capacity reaches 1685 W at 3600 r/min,and the COP is 2.16.Meanwhile,the system adopted the form of secondary heat transfer,which improved the safety and reliability.However,compared with the primary circuit,the cooling capacity is attenuated by 300-500 W,and the heating capacity is attenuated by 200-400 W.

关 键 词：热泵 电动汽车 R290 系统性能 

分 类 号：TB61[一般工业技术—制冷工程] TB63