摘要
采用CO2/低GWP混合工质的热泵热水器系统,分析系统不同组分CO_质量分数对系统热力性能系数以及工况压力的影响,得出混合工质能够降低高压侧运行压力提高热力性能的结论。提出考虑环境影响的系统综合评价体系,并给出不同目标下的推荐工质对。
CO2/low GWP refrigerants hybrid heat pump water heater system is proposed. This paper analyzes the impact of system components of different CO2 fractions of the system thermal performance coefficient and pressure conditions, and we obtained the conclusion that mixed refrigerants can reduce the operating pressure of the high pressure side to improve the thermal performance. Considering the environmental impact of proposed comprehensive evaluation system, and gives the recommended target working fluid under different conditions.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第1期84-89,共6页
Acta Energiae Solaris Sinica
关键词
热泵
CO2
混合工质
环境影响
heat pump system
CO2
mixtures
environmental impact
