Simple fundamental equation of state for liquid, gas, and fluid of argon, nitrogen, and carbon dioxide
- Авторлар: Kaplun A.1, Meshalkin A.1
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Мекемелер:
- Kutateladze Institute of Thermophysics SB RAS
- Шығарылым: Том 24, № 4 (2017)
- Беттер: 513-522
- Бөлім: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/217004
- DOI: https://doi.org/10.1134/S0869864317040023
- ID: 217004
Дәйексөз келтіру
Аннотация
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.
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Авторлар туралы
A. Kaplun
Kutateladze Institute of Thermophysics SB RAS
Хат алмасуға жауапты Автор.
Email: kaplun@itp.nsc.ru
Ресей, Novosibirsk
A. Meshalkin
Kutateladze Institute of Thermophysics SB RAS
Email: kaplun@itp.nsc.ru
Ресей, Novosibirsk