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科学通报  2014 

基于损失最大的往复式热机最优构型

DOI: 10.1360/csb2014-59-11-1033, PP. 1033-1039

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Abstract:

采用有限时间热力学理论和理论对一类存在热漏和高温热源热容有限的两热源热机进行研究.寻求模型符合牛顿传热定律时,系统在给定循环周期下系统熵产生最小和损失最大时的最优构型,并与系统输出功最大时的最优构型对比.分析结果表明对于无限热容高温热源,热漏是否存在并不改变循环的最优构型;而对于有限热容高温热源,以系统熵产生最小和损失最大为目标的最优构型与以系统输出功最大为目标的最优构型不完全相同,无热漏时分别以熵产生最小、损失最大和输出功最大为目标的最优构型均相同,而存在热漏时分别以三者为目标时的最优构型各不相同.

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