The Modification of the Martin-Hou Equation of State and its application
in Liquid-phase State
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.