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不同状态方程对R134a摩擦理论黏度模型的比较分析 被引量：2

Comparison of different state equation on friction theory viscosity model of R134a
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摘要 为了考察不同状态方程对摩擦理论黏度模型拟合结果的影响,以制冷剂R134a为例,分别采用工程上常用的PR(Peng-Robinson)方程、MBWR(modified benedict-webbrubin)方程和R134a的专用状态方程Span-Wagner方程建立了R134a的摩擦理论黏度模型。计算结果表明,用这三个方程建立的模型,在液相区精度相当,在气相区则有一定差别,其中用Span-Wagner方程建立的黏度模型最好,PR方程建立的模型较差,为摩擦理论黏度模型的进一步改进提供了思路。 In order to compare the influence of different equation of states on the friction theory viscosity model of refrigerant R134a,three different equation of states,such as PR EOS,MBWR EOS and Span-Wagner EOS,were used to establish the viscosity model of R134a based on the friction theory,which called f-PR model,f-MBWR model,and f-SW model,respectively.The results showed that,the accuracy of the three types of friction theory viscosity model for R134a was almost the same in the liquid region.But in the gaseous phase,the accuracy of the f-SW model was better than that of f-PR model and f-MBWR model.
作者 王晓坡 宋渤 吴江涛 刘志刚
机构地区 西安交通大学动力工程多相流国家重点实验室
出处 《热科学与技术》 CAS CSCD 2011年第1期1-5,共5页 Journal of Thermal Science and Technology
基金 国家自然科学基金资助项目(51006083 50836004) 中央高校基本科研业务费专项资金资助项目(XJJ20100140)
关键词 摩擦理论黏度模型 PR方程 MBWR方程 Span-Wanger方程 R134A friction theory viscosity model PR（Peng-Robinson） equation MBWR（modiried benedict-webbrubin） equation Span-Wagner equation R134a
分类号 TK121 [动力工程及工程热物理—工程热物理]
  • 相关文献

参考文献18

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二级参考文献24

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共引文献1

同被引文献25

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热科学与技术
2011年 第1期

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