不可逆四热源制冷循环的优化性能

Optimal Performance of an Irreversible Four-Heat-Source Refrigeration Cycle

研究传热遵从线性唯象律的不可逆四热源制冷循环的优化性能 ,导出循环的基本优化关系和最大制冷率及其相应的制冷系数。揭示了四热源制冷循环等效于一个三热源制冷循环 ,而且还可使四热源制冷循环转化为一个三热源制冷循环而获得更优的制冷效果。

This paper studies the optimal performance of an irreversible four-heat-source refrigeration cycle with the phenomenological heat transfer law.The fundamental optimal relation and the maximum rate of refrigeration and its corresponding coefficient of performance of the cycle are derived.It is revealed that a four-heat-source refrigeration cycle is equivalent to a three-heat-source refrigeration cycle,which may be transformed into a three-heat-source refrigeration cycle to achieve better refrigeration effect.