The optimal configuration of reciprocating engine based on maximum entransy loss  

作　　者：Aibo Yang Lingen Chen Shaojun Xia Fengrui Sun 

机构地区：[1]Institute of Heat Science and Power Engineering,Naval University of Engineering [2]Military Key Laboratory for Naval Ship Power Engineering,Naval University of Engineering [3]College of Power Engineering,Naval University of Engineering

出　　处：《Chinese Science Bulletin》2014年第17期2031-2038,共8页

基　　金：supported by the National Natural Science Foundation of China (51176203,51206184)

摘　　要：A class of two-heat-reservoir heat engine model with heat leakage,finite heat capacity high-temperature source and infinite heat capacity low-temperature heat sink,is researched with the finite-time thermodynamic theory and the entransy theory.The optimal configuration based on the minimum entropy generation and the maximum entransy loss under the given cycle is searched,which are compared with the optimal configuration based on the maximum output work,and all the heat transfer in the model is assumed to obey the Newton’s law.The results show that,for the infinite heat capacity high-temperature source,the optimal configuration does not change whether heat leakage exists or not;however,for the finite hightemperature reservoir,the optimal configuration is different among which based on the minimum entropy generation,the maximum entransy loss,and the maximum output work when the heat leakage exists.A class of two-heat-reservoir heat engine model with heat leakage, finite heat capacity high-tem- perature source and infinite heat capacity low-temperature heat sink, is researched with the finite-time thermodynamic theory and the entransy theory. The optimal configuration based on the minimum entropy generation and the maxi- mum entransy loss under the given cycle is searched, which are compared with the optimal configuration based on the maximum output work, and all the heat transfer in the model is assumed to obey the Newton＇s law. The results show that, for the infinite heat capacity high-temperature source, the optimal configuration does not change whether heat leakage exists or not; however, for the finite high- temperature reservoir, the optimal configuration is different among which based on the minimum entropy generation, the maximum entransy loss, and the maximum output work when the heat leakage exists.

关 键 词：最优配置 往复式发动机 有限时间热力学理论 基础 亏损 最佳配置 热机模型 高温度 

分 类 号：TK40[动力工程及工程热物理—动力机械及工程]