Equation of State for Normal Hydrogen

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Equation of State for Normal Hydrogen

更新时间：2025-07-09

- Equation of State for Normal Hydrogen
- Vol. 45, Issue 11, Pages: 1-5+21(2011)
- 作者机构：
  
  西安交通大学热流科学与工程教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： O551.3;TK123
- Online First：10 November 2011，
  
  Published：2011
- 稿件说明：
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Equation of State for Normal Hydrogen[J]. 2011, 45(11): 1-5+21.
DOI：

Equation of State for Normal Hydrogen[J]. 2011, 45(11): 1-5+21. DOI：

摘要

为推进氢气超声波流量计的研究及为研制其他氢能利用设备提供理论支持

促进氢经济的研究

在广泛搜集标准氢(仲氢的摩尔分数为25%)热力学性质实验数据的基础上

运用单纯形算法开发了标准氢压力为显式

温度、密度为自变量的状态方程.方程与密度实验数据的偏差一般在±0.05%以内.结合工程应用实际

文中方程的适用范围为50～700 K、压力低于300 MPa的区域.经分析

方程计算密度的不确定度为0.05%

且高温高压方向具有一定的外推性

可很好地满足实际工程应用的要求.

Abstract

The thermodynamic properties of normal hydrogen are required to simulate the hydrogen system in the study on hydrogen economy. In this research

the equation of state for normal hydrogen was developed on the basis of a large collection of the experimental thermodynamic property data using the simplex method. Comparisons of values calculated using the equation of state with the experimental data show that the deviations in density

the second virial coefficient

and the third virial coefficient are within ±0.05%

±1.0 cm

·mol

-1

and ±1.0 cm

·mol

-2

respectively. The valid range of the equation is from 50 to 700 K

with the pressure up to 300 MPa

and the uncertainty in density of the equation is estimated to be 0.05%. The equation developed should be useful in engineering application.

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references

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