论文部分内容阅读
在汇总、推导氟利昂制冷剂及R717的热力性质方程式的基础上,作者建立了蒸汽压缩式制冷循环参数计算及(火用)分析的计算机辅助设计程序。本文说明热力性质计算方程的来源、子程序的功能及其计算步骤,并举例说明子程序在制冷机(火用)分析中的应用。因为在本程序中可以计算任意环境条件下的(火用)值,因而使(火用)分析的计算方便、准确。
On the basis of summarizing and deriving the thermodynamic properties of Freon refrigerants and R717, the author established computer-aided design procedure of vapor compression refrigeration cycle parameters calculation and exergy analysis. This article describes the sources of thermodynamic properties, the functions of subroutines, and their computational steps, and illustrates the application of subroutines in the exergy analysis of refrigerators. Because exergy values can be calculated under any environmental conditions in this program, exergy analysis is easy and accurate to calculate.