具有热阻、热漏、内不可逆性和补燃的联合卡诺型热机有限时间火用经济性分析  

Finite time exergoeconomic performance analysis of combined Carnot heat engine cycle with heat resistance,heat leakages,internal irreversibility and supplemental combustion

作　　者：肖航[1] 倪何[1,2] 程刚[2] 孙丰瑞[1] 

机构地区：[1]海军工程大学动力工程系,湖北武汉430033 [2]海军工程大学装备仿真研究所,湖北武汉430033

出　　处：《热科学与技术》2010年第4期326-332,共7页Journal of Thermal Science and Technology

摘　　要：在原有的不可逆联合动力循环模型的基础上,建立了一个存在热阻、热漏、内不可逆性和补燃的不可逆定常流联合热机模型。研究其在傅立叶导热定律下循环的火用经济性,并对其进行优化,导出最佳纯利润功率、效率的解析式和基本优化关系,讨论了价格比和补燃系数对纯利润功率的影响。Based on the irreversible combined power cycle model provided by literature,a generalized irreversible combined Carnot cycle model with heat resistance,heat leakage,internal irreversibility and supplemental combustion was established.The finite-time exergoeconomic performance under the linear heat transfer law was studied and optimized.The relationships between exergoeconomic performance and efficiency,as well as the analytical formula of the optimal exergoeconomic performance and efficiency were derived.The effects of price ratio and supplemental combustion on the optimal performance were analyzed.

关 键 词：广义不可逆热机 联合循环 补燃 有限时间火用经济性 广义热力学优化 

分 类 号：TK121[动力工程及工程热物理—工程热物理]