摘要
对太阳能喷射制冷系统进行理论分析,并通过与常用工质的比较,提出以R236fa作为太阳能喷射制冷系统的制冷剂。建立计算模型,模拟以R236fa作为制冷剂太阳能喷射制冷系统的运行性能。结合理论分析,蒸发温度在5～10℃,冷凝温度在30～36℃,发生温度在82～94℃之间变化时,分别对以R236fa、R141b和R123为制冷剂的太阳能喷射制冷系统进行实验研究。结果表明,典型空调工况条件下,R236fa作为制冷剂的喷射制冷系统COP为0.413;太阳能喷射制冷系统的性能系数COPsc可达0.243,系统的制冷量为11.90kW。
With analysis on the solar ejector cooling system and comparison with the common refrigerants, a new refrigerant of R236fa to the solar ejector cooling system was suggested. The operation of the ejector cooling system was simulated with a mathematical model. In order to verify the theoretical simulation, an experimental study of the system using refrigerant R236fa, R141b and R123 was carried out with the evaporator temperature （5-10℃）, condenser temperature （30-36℃） and generator temperature （82-94℃）. It was found that the optimum COP （ = 0. 413 ） of the ejector cooling system, the optimum COPse （ = 0. 243） and cooling capacity（ = 11.90kW） of the overall solar ejector cooling system could be obtained in the system using refrigerant R236fa.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2012年第12期2116-2121,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(50706005)
