Simple fundamental equation of state for liquid, gas, and fluid of argon, nitrogen, and carbon dioxide
- 作者: Kaplun A.1, Meshalkin A.1
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隶属关系:
- Kutateladze Institute of Thermophysics SB RAS
- 期: 卷 24, 编号 4 (2017)
- 页面: 513-522
- 栏目: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/217004
- DOI: https://doi.org/10.1134/S0869864317040023
- ID: 217004
如何引用文章
详细
A new fundamental low-parametric equation of state in the form of reduced Helmholtz function for describing thermodynamic properties of normal substances was obtained using the methods and approaches developed earlier by the authors. It allows us to describe the thermal properties of gas, liquid, and fluid in the range from the density in ideal-gas state to the density at a triple point (except the critical region) with sufficiently high accuracy close to the accuracy of experiment. The caloric properties and sound velocity of argon, nitrogen, and carbon dioxide are calculated without involving any caloric data, except the ideal gas enthalpy. The obtained values of isochoric heat capacity, sound velocity, and other thermodynamic properties are in good agreement with experimental (reliable tabular) data.
作者简介
A. Kaplun
Kutateladze Institute of Thermophysics SB RAS
编辑信件的主要联系方式.
Email: kaplun@itp.nsc.ru
俄罗斯联邦, Novosibirsk
A. Meshalkin
Kutateladze Institute of Thermophysics SB RAS
Email: kaplun@itp.nsc.ru
俄罗斯联邦, Novosibirsk