| 一个新的通用流体蒸汽压方程 |
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| 引用本文： | 王薇,谭连城,项红卫.一个新的通用流体蒸汽压方程[J].工程热物理学报,1997(2). |
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| 作者姓名： | 王薇 谭连城 项红卫 |
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| 作者单位： | 北京工业大学热能系!北京，100022，西安交通大学能动学院!西安，710049，清华大学热能系!北京，100084 |
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| 摘 要： | 1基于对比态原理建立的新方程对比态原理是被广泛应用于推算流体热力学性质的方法之一，最初由范德瓦尔斯提出，但它只适用于简单流体。之后，Pitier等人山引人称为偏心因子的参数。来改进对比态原理，使之能适用于标准流体。P让zer定义的偏心因子为：。—－1－10g（P，。）T，－0．7（1）根据Pitier对比态原理，对偏心因子为。的标准流体，其饱和蒸汽压可以表示为：InPr、二InP｝9）＋。InP｝：）（2）式中，牲’表示简单流体的对比蒸汽压，欢’是校正函数，呻2）是标准流体相对于简单流体的蒸汽压偏差项。由于Pitier三参数对比态原理…
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| 关 键 词： | 蒸汽压 方程 对比态原理 |
A NEW GENERAL VAPOR PRESSURE EQUATION OF FLUIDS |
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| WANG Wei.A NEW GENERAL VAPOR PRESSURE EQUATION OF FLUIDS[J].Journal of Engineering Thermophysics,1997(2). |
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| Authors: | WANG Wei |
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| Institution: | WANG Wei(Beijing Polytechnic University Beijing 100022)TAN Liancheng(Xi'an Jiaotong University Xi'an 710049)XIANG Hongwei(Tsing Hua University Beijing 100084) |
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| Abstract: | A new general vapor pressure equation based upon the theory of the corresponding statesprinciples is developed in this paper. The equation presented here has a simple and generalform, and has a comparable accuracy for prediction of the vapor pressure of fluids. Only thecritical temperature, critical pressure, acentric factor w and polar factor x are required forprediction. Satisfactory results are available for various kinds of substances such as simplefluids, quantum fluids, hydrogen-bond fluids, non- polar fluids, polar fluids, refrigerents andassociated fluids etc.. |
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| Keywords: | vapor pressure equation theory of the corresponding states principles |
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