内可逆闭式中冷回热布雷顿循环效率优化  

Efficiency optimization of an endoreversible closed intercooled regenerated Brayton cycle

作　　者：王文华[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学船舶与动力学院,湖北武汉430033

出　　处：《海军工程大学学报》2005年第2期1-3,38,共4页Journal of Naval University of Engineering

基　　金：全国优秀博士学位论文作者专项资金资助项目(200136);海军工程大学科研基金资助项目(HGDJJ03016)

摘　　要：以热效率为目标,应用有限时间热力学的方法优化了恒温热源条件下内可逆闭式中冷回热布雷顿循环的中间压比分配和高低温侧换热器、中冷器及回热器热导率分配,得到循环最大热效率.进一步对总压比优化,可以得到双重最大效率.通过数值计算,研究了一些重要参数对循环优化结果的影响.Taking thermal efficiency as optimization objective, this paper applies finite-time thermodynamics to optimize the intereooling pressure ratio and the heat conductance distribution of hot- and cold-side heat exchangers, intereooler and regenerator of an endoreversible intereooled regenerated Brayton cycle coupled to constant-temperature heat reservoirs. Double-maximum efficiency is obtained by further optimizing the total pressure ratio. The effects of some important parameters on the optimal results are analyzed by detailed numerical examples.

关 键 词：有限时间热力学 布雷顿循环 效率 优化 

分 类 号：TK12[动力工程及工程热物理—工程热物理]