热力学中的多方过程研究

Research of polytropic process in thermodynamics

为解决现有热力学中对一般的多方过程没有进行深入研究的问题,根据热力学的基本理论计算,给出了一般多方过程的功、内能增量和转递的热量的计算公式,讨论了P-V图中斜直线为多方过程的条件,提供了判断多方过程吸放热问题的一种简单方法和在不同区间判断多方过程吸放热问题的基本方法。弥补了热力学对多方过程研究的不足。

To solve the problem of the polytropic process which hasn＇t been studied in a deepgoing way in the thermodynamics ,the formula of the merit in course, the increment of internal energy and the calculation that turns the heat in the polytropic process have been given according to the basically theoretical calculation of thermodynamics ,the oblique straight line in P-V picture is discussed as the requirements of the polytropic process ,a kind of simple judging method and the basic judging method of inhaling and releasing the heat in different interval are offered ,which remedied the deficiency in the research of the polytropic process in the thermodynamic.