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The Modification of the Martin-Hou Equation of State and its application in Liquid-phase State
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  • Zhicong Chen,
  • Guang Yao,
  • Quan Zhu,
  • Jianli Wang,
  • Xiangyuan Li
Zhicong Chen
Sichuan University
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Guang Yao
Sichuan University
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Quan Zhu
Sichuan University
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Jianli Wang
Sichuan University
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Xiangyuan Li
Sichuan University
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Abstract

In order to further improve the accuracy in liquid-phase state and get a simpler algorithm, the Martin-Hou Equation of State is modified after rigorous data analyses in different cases. A new revision factor h, a function of critical compression factor, is introduced into the novel M-H EOS. According to the derivation of the new EOS, only a few number of physical properties are needed to characterize a given substance, which greatly reduced the difficulty of the solution about the EOS. The novel M-H EOS is applied to argon, methane, nitrogen, propane, benzene and water to verify the applicability and the accuracy in liquid-phase state. The overall average deviation for the six substance is 1.29% by the novel M-H EOS; as a comparison, the overall average deviation is 2.51% by Hou’s M-H EOS, the novel M-H EOS obviously reduces the deviation and can universally be applied to most kinds of substances.