多种不可逆性对斯特林热机输出功率和效率的影响  

Influence of multi-irreversibilities on the power output and efficiency of a Stirling heat engine

作　　者：叶兴梅 陈景东 方玉宏 YE Xing-mei;CHEN Jing-dong;FANG Yu-hong(College of Physics and Information Engineering,Minnan Normal University,Zhangzhou 363000,China)

机构地区：[1]闽南师范大学物理与信息工程学院,福建漳州363000

出　　处：《陕西理工大学学报（自然科学版）》2021年第4期18-23,共6页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(61975072);福建省教育厅中青年教师教育科研项目(JT180296,JAT190379);闽南师范大学科技项目(MX1601,KJ19020);漳州市自然科学基金资助项目(ZZ2021J11)。

摘　　要：探索热源热容量有限、热阻、热漏、回热损失和工质内不可逆性等对斯特林热机性能的影响,应用有限时间热力学方法,导出输出功率与效率的数学表达式。在相关参数值给定情况下,获得不可逆热机循环的性能特性,同时讨论了各种不可逆性对输出功率和效率的影响。研究结果对实际斯特林热机参数优化设计具有参考价值。The influence of finite heat capacities of reservoirs,heat resistance,heat loss,regenerative loss and internal irreversibility inside the working substances on the performances of a Stirling heat engine are investigated.By using the method of finite-time thermodynamics,mathematical expressions of the power output and efficiency for the Stirling heat engine are derived.The performance characteristics of the heat engine are presented with given relevant parameter values.Simultaneously,the influences of multi-irreversibilities on the power output and efficiency are discussed in detail.The research results have significant reference value for the optimal parametric design of the Stirling heat engine.

关 键 词：斯特林热机 不可逆性 输出功率 效率 优化 

分 类 号：TK123[动力工程及工程热物理—工程热物理] O414[动力工程及工程热物理—热能工程]