Mean-Field Equation of State of Supercooled Water and Vapor Pressure Approximations

被引:0
作者
Kalova, Jana [1 ]
Mares, Radim [2 ]
机构
[1] Univ South Bohemia, Fac Sci, Dept Math & Biomath, Branisovska 1760, Ceske Budejovice 37005, Czech Republic
[2] Univ West Bohemia, Fac Mech Engn, Dept Power Syst Engn, Univ 22, Plzen 30614, Czech Republic
来源
36TH MEETING OF DEPARTMENTS OF FLUID MECHANICS AND THERMODYNAMICS | 2017年 / 1889卷
关键词
THERMODYNAMIC PROPERTIES; HEAT-CAPACITY; BEHAVIOR; DENSITY; POINT;
D O I
10.1063/1.5004350
中图分类号
O414.1 [热力学];
学科分类号
摘要
An equation of state for supercooled water in the mean-field approximation is presented in the paper. The model describes experimental data in the supercooled region and satisfies a condition that for very low temperatures heat capacity of liquid water is close to the heat capacity of ice. The equation is used to calculate vapor pressure data at ambient pressure in the temperature interval from 123 K to 273 K. Based on the data, two very simple formulas for vapor pressure below 230 K and above 230 K are calculated.
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页数:10
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