一类回热式布雷顿制冷循环的有限时间热力学性能  

FINITE TIME THERMODYNAMIC CHARACTERISTIES OF A REGENERATED BRAYTON REFRIGERATION CYCLE

作　　者：陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程学院306教研室

出　　处：《真空与低温》1996年第1期22-26,共5页Vacuum and Cryogenics

摘　　要：研究了恒温热源条件下具有等熵压缩、膨胀过程的闭式回热式布雷顿制冷循环的有限时间热力学性能。导出循环制冷率、制冷系数与循环压比的关系，由此得到最佳制冷率、制冷系数的特性。The finite time thermodynamic characteristics of an isentropic closed regenerated Brayton refrigerstion cycle with constant temperature heat reservoirs has been studied in the paper. The relations between cyclic cooling rate and pressure ratio, coeffcient of performance (COP) and pressure ratio are derived for the two cases of heat reservoir conditions, and then the optimal characteristics of cooling rate versus COP are obtained.

关 键 词：有限时间热力学 布雷顿 制冷机 回热制冷循环 

分 类 号：TB618[一般工业技术—制冷工程]