| 混合工质R134a/R23焓-浓度图的绘制 |
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| 引用本文： | 王雁,杜垲. 混合工质R134a/R23焓-浓度图的绘制[J]. 制冷学报, 2005, 26(2): 51-56 |
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| 作者姓名： | 王雁 杜垲 |
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| 作者单位： | 东南大学动力工程系,南京,210096 |
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| 摘 要： | 使用PR(Peng-Robinson)方程对混合工质R134a/R23进行了气液相平衡的预测和焓、熵的计算.针对PR方程液相精度比较差的问题,对PR方程引入了修正系数,重新推导了逸度系数、余函数等表达式,并将计算结果与实验数据进行了比较.根据计算得到的R134a/R23热物性数据,绘制了工程上广泛使用的二元混合工质的焓-浓度图,为基于该混合工质的循环计算,提供了重要的基础数据.
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| 关 键 词： | 热工学 焓-浓度图 修正PR方程 混合工质R134a/R23 |
| 修稿时间： | 2004-06-17 |
Enthalpy-composition Diagram Plotting for R134a/R23 |
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| Wang Yan,DU Kai. Enthalpy-composition Diagram Plotting for R134a/R23[J]. Journal of Refrigeration, 2005, 26(2): 51-56 |
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| Authors: | Wang Yan DU Kai |
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| Abstract: | R134a/R23 is a new refrigerant mixture and friendly to environment. In this research, the vapor-liquid equilibrium, enthalpy, and entropy of this mixture were calculated based on Peng-Robinson(PR)equation of state(EOS). To make PR equation more accurate, a correction factor was correlated and the fugacity coefficient and complementary function were recalculated. According to the result from this calculation, an enthalpy-composition diagram was plotted, which supplies important data for thermophysical properties and cycle analysis of R134a/R23. |
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| Keywords: | Pyrology enthalpy-composition diagram modified PR equation mixed-refrigerant R134a/R23 |
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