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.
出处
《热能动力工程》
CAS
CSCD
北大核心
2000年第2期107-109,共3页
Journal of Engineering for Thermal Energy and Power
关键词
有限时间热力学
不可逆因子
卡诺热机
finite time thermodynamics, irreversible factor, irreversible loss
