熵平衡方程推导、损失功计算式表述的再探讨

Further Studies on Derivation of Entropy Balance Equation and Calculation Formula of Losses Work

文章分析了国内化工热力学、工程热力学教材在熵平衡方程推导过程中存在的错误,指出了热力学教材中有关熵流、熵产及损失功计算式表述形式方面存在的问题,并结合笔者多年的教学经验,提出了改进熵平衡方程推导的具体方法和规范熵流、熵产及损失功计算式的建议。

In the paper, mistakes of derivation process for entropy balance equation in domestic chemical engineering thermodynamics and engineering thermodynamics teaching materials are analyzed, and errors of calculation means for entropy flow, entropy generation and lost work in the textbooks are shown, too. Suggestions of derivation methods of entropy and calculation ways of entropy flow, entropy generation and lost work are given under several years teaching experience in the paper at the same time.