变温热源条件下内可逆闭式中冷回热布雷顿循环的功率优化  

Power optimization of an endo-reversible inter-cooling regeneration Brayton cycle coupled to variable-temperature heat reservoirs

作　　者：王文华[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学三系,湖北武汉430033

出　　处：《热科学与技术》2003年第1期15-19,共5页Journal of Thermal Science and Technology

基　　金：全国优秀博士学位论文作者专项资金资助项目 ( 2 0 0 136 ) ;国家重点基础研究发展规划资助 ( 973)项目 ( G2 0 0 0 0 2 6 30 1

摘　　要：计入工质与高低温侧换热器、回热器和中冷器的热阻损失以功率为优化目标 ,借助数值计算 ,研究了变温热源条件下内可逆闭式中冷回热布雷顿循环输出功率最大时 ,高低温侧换热器、回热器和中冷器的热导率分配以及中间压比与总压比的关系 ;分析了工质与热源间的热容率匹配对双重最大功率的影响。The characteristics of the inter-cooling pressure ratio and the heat conductance distributions among the hot-and cold-side heat exchangers, the regenerator and the intercooler at the maximum power of an closed Endo-reversible inter-coooling regeneration Brayton cycle coupled to variable-temperature heat reservoirs was studied with detailed numerical calculations, taking the power as the optimum function, counting in the heat resistance in the hot-and cold-side heat exchangers, the regenerator and the intercooler. The effect of the thermal capacity rate matching between the working fluid and the heat reservoirs on the characteristic of the doulble maximum power was also analyzed.

关 键 词：有限时间热力学 布雷顿循环 功率 换热器 中冷器 

分 类 号：TK123[动力工程及工程热物理—工程热物理]