【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 ,此计算公式对有限时间内不可逆卡诺热机的不可逆损失及热效率的计算有一定的指导意义更多还原

【Abstract】 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.更多还原