有限时间内不可逆卡诺热机的不可逆因子的研究  

A Study of the Irreversible Factor of a Finite time Endo irreversible Carnot Engine

作　　者：杨玉顺[1] 刘仕强[1] 

机构地区：[1]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《热能动力工程》2000年第2期107-109,共3页Journal of Engineering for Thermal Energy and Power

摘　　要：推导出了有限时间内不可逆卡诺热机的不可逆因子计算式 ,同时指出 ,其最大功率时不可逆因子无法仅用高、低温热源的温度来确定 ,还必须已知系统循环工质的某一端的温度。由实例计算证明了不可逆因子计算式的可信性 。Deduced in this paper is the calculation formula of an irreversible factor for a finite time endo irreversible Carnot engine. Meanwhile, it is pointed out that at the maximum engine power the irreversible factor cannot be determined by using only the temperature of the high and low temperature heat source. To make such a determination possible, one has to know the temperature of one end of a system's circulating working medium. The calculation of a specific example shows the validity of the irreversible factor calculation formula. The latter can somehow serve as a helpful guide during the computation of the irreversible loss and thermal efficiency of the finite time endo irreversible Carnot engine.

关 键 词：有限时间热力学 不可逆因子 卡诺热机 

分 类 号：TK123[动力工程及工程热物理—工程热物理]