摘要
该文研究定常态变温热源制冷机的有限时间热力学性能,导出内可逆卡诺制冷机和布雷顿制冷机的最佳制冷率制冷系数关系,分析了工质热容率(水当量)有限和热源热容率有限对制冷机性能的影响,比较了两种制冷机在相同边界条件下的性能特点。所得结果对制冷机工作参数和工质的最优选择有一定指导意义.
Chen Lingen,Sun.Fengrui,Chen.Weazhen (Naval Academy of Engineering) This paper studied the finite time thermodynaruic performance of stable flow refrigerators coupled to finite thermal capacitance rate (variable-temperature) heat source and sink,derived the relations between optimal rate of refrigeration and coefficient of performance for stable flow endoreversible Carnot and Bryton refriberation cycles,analysed the effects of the finite thermal capacitance rate of the working fluid and the thermal reservoirs on the obtimal performance of the refrigerators,and compared the performance characteristics of both type cycles.The results presented provides some theritical guidance to the selection of working parameters and type of working fluid of real refrigerator in practice.
出处
《低温与超导》
CAS
CSCD
北大核心
1993年第3期58-67,共10页
Cryogenics and Superconductivity
