A New Functional Form for Equations of State for Some Weakly Associating Fluids
A New Functional Form for Equations of State for Some Weakly Associating Fluids
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DOI：
10.1007/s10765-014-1633-1
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发表时间：
2014-06
影响因子：
2.2
通讯作者：
M. Thol;L. Piazza;R. Span
中科院分区：
文献类型：
--
作者：
M. Thol;L. Piazza;R. Span
提出了一种新的极性弱缔合流体状态方程的泛函形式。它是建立了一个同时优化算法以前开发的。结果表明，对于氯化氢（HCl）、二乙醚（DEE）和氯甲烷（R40），分别建立了适用于（155-330）K和~ MPa，适用于（270-500）K和~ MPa，适用于（230-630）K和~ 100 MPa的Helmholtz能与温度和密度的关系式。这些方程可用于计算所有热力学性质，包括密度、内能、焓、热容、声速、饱和性质等。
A new functional form for equations of state for polar and weakly associating fluids was developed. It was established with a simultaneous optimization algorithm developed previously. As a result, equations of state in terms of the Helmholtz energy as a function of temperature and density were developed for hydrogen chloride (HCl) valid within(155–330) K and pressures up toMPa, diethyl ether (DEE) valid within(270–500) K and pressures up toMPa, and methyl chloride (R40) valid within(230–630) K and pressures up to100 MPa. Those equations can be used for the calculation of all thermodynamic properties, including density, internal energy, enthalpy, heat capacity, speed of sound, saturation properties, etc.