摘要
以功率密度——循环输出功率与最大比容之比——作为优化目标。用有限时间热力学方法 ,对恒温热源条件下内可逆闭式燃气轮机循环的高、低温侧换热器的热导率分配进行了优化。由数值算例给出了循环的一些主要特征参数对热导率最优分配和最大功率密度的影响 ,以及功率密度最大时的最佳热导率分配与最佳压比之间的对应关系。
WT5”BZ]In this paper,heat transfer distribution of hot and cold side heat exchangers is optimized for an endoreversible closed Brayton cycle coupled to constant temperature heat source in the viewpoint of finite time thermodynamics(FTT) with regarding the power density as the optimization objective,which is defined as the ratio of power output to the maximum specific volume in the cycle.The effects of various design parameters on the heat transfer and the maximum power density and the relations between the optimal distribution of heat transfer and the optimal pressure ratio are shown by numerical examples.
出处
《燃气轮机技术》
北大核心
2000年第3期27-31,共5页
Gas Turbine Technology
