光热光电喷射-直接蒸发复合制冷系统性能  

Performance of Solar Ejector and Direct Evaporation Combined Refrigeration System Poweredby Photovoltaic Solar Energy

作　　者：李风雷[1] 韩瑞春[1] 程志雯[2] 马军伟 

机构地区：[1]太原理工大学环境科学与工程学院,山西太原030024 [2]山西省地震局,山西太原030024 [3]山西锦兴能源有限公司,山西吕梁033600

出　　处：《华侨大学学报（自然科学版）》2017年第2期189-194,共6页Journal of Huaqiao University(Natural Science)

基　　金：山西省科技攻关项目(20140313006-6);国家国际科技合作项目(2013DFA61580);山西省回国留学人员科研基金资助项目(2016-032)

摘　　要：提出一种以R134a为制冷剂的光热光电喷射-直接蒸发复合制冷系统,以新疆喀什地区的气象参数为输入,结合Trnsys软件进行建筑模拟和系统仿真计算,分析夏季连续典型气象日内系统的运行情况及其性能.结果表明:直接蒸发冷却系统系数COP_m值最大可以达到15.05;COP_m平均值达到12.33;太阳能喷射制冷系统机械COP_m最大为4.97;复合系统的综合机械性能系数COP_m达到8.52;整个夏季完全用机械压缩制冷系统耗电量为162.6kW·h;完全用光热光电喷射-蒸发复合制冷系统耗电量为65.4kW·h.This paper proposed a solar ejector and direct evaporation combined refrigeration system powered by photovoltaic solar energy. This system used R134a as refrigerant, input meteorological parameters in Kash-gar Area, Xinjiang, and combined Trnsys simulation software for building simulation and simulation computa-tion of the system, then conducted a comprehensive analysis of operation and thermal performance of the sys-tem during consecutive typical meteorological days in summer. The result shows that the maximum COPm of the direct evaporation refrigeration system can reach 15. 05 with the average COPm 12. 33. The maximum me-chanical COPm of the ejector refrigeration is 4. 97, and the comprehensive COPm is 8. 52. Morever, power con-sumption of the mechanical compression refrigeration system is 162. 6 kW·h, and the power consumption of the combined system is 65.4 kW·h in summer.

关 键 词：制冷系统 喷射 蒸发 太阳能 光热光电 

分 类 号：TK519[动力工程及工程热物理—热能工程]