关于一般循环效率的讨论

Discussion on general circulating efficiency

热效率的大小由具体的循环过程来决定,不同热机有不同的循环过程,因而有不同的热效率.传统热效率的计算方法,只能对标准过程(即等温、等压、等容、绝热、多方过程)进行计算,但实际的循环过程并非都是标准过程,对一般循环过程热效率的讨论,没有一个好的定量计算方法,只能定性讨论.利用图解法、数值逼近法可以定量描述一般循环过程的热效率,为解决实际问题提供理论依据.

The height of heat efficiency is decided in a specific way by circulating process. Different hot machine has different circulating process, therefore it has different heat efficiency. The calculation method of traditional heat efficiency, can be only carried on the calculation to the basic process (equal temperature,equal pressure, equal vessel,heat,multi process), but reality circulating processes are not all basic processes. In general, there is no good method used to calculate in a quantitative way. Graphic method,and the number approaching method can be used to describe the general circulating process of heat efficiency in quantitative way. These methods can provide theoretical evidence to resolve actual problems.