不可逆中冷回热布雷顿循环功率密度优化  

Power Density Optimization of an Irreversible Closed Intercooled Regenerated Brayton Cycle

作　　者：王俊华[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学动力工程系

出　　处：《燃气涡轮试验与研究》2006年第1期47-53,共7页Gas Turbine Experiment and Research

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-1006)全国优秀博士学位论文作者专项资金资助项目(200136)

摘　　要：用有限时间热力学的方法,在给定总热导率的情况下,以功率密度为目标,通过数值计算,对恒温热源条件下不可逆中冷回热布雷顿循环高、低温侧换热器的热导率分配和中间压比进行了优化,分析了不可逆性对循环功率密度特性的影响。Finite time thermodynamic theory was applied to the study the performance of an irreversible closed intercooled regenerated Brayton cycle coupled to constant temperature heat reservoirs. The optimal distribution of the heat conductance of the hot-and cold-side heat exchangers, the optimal intercooling pressure ratio, and the optimal total pressure ratio of the cycle were obtained by taking the power density as objective function by using detailed numerical calculation when the total heat exchangers inventory was fixed. The effects of thermodynamic parameters of the cycle, especially the irreversible losses of compressor and turbine, on the maximum power density and the double maximum power density were analyzed.

关 键 词：中冷回热布雷顿循环 不可逆循环 功率密度 有限时间热力学 热力学优化 

分 类 号：TK12[动力工程及工程热物理—工程热物理]