物理化学学报 >> 1994, Vol. 10 >> Issue (05): 461-467.doi: 10.3866/PKU.WHXB19940518

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汽液共存相的粘度及导热系数间的关系

刘洪勤   

  1. 北京化工学院化学工程系,北京 100029
  • 收稿日期:1992-11-10 修回日期:1993-03-26 发布日期:1994-05-15
  • 通讯作者: 刘洪勤

The Correlations of Viscosities and Thermal Conductivities of Saturated Vapors with Those of Coexisting Liquids

Liu Hong-Qin   

  1. Chemical Engineering Department, Beijing Institute of Chemical Technology, Beijing 100029
  • Received:1992-11-10 Revised:1993-03-26 Published:1994-05-15
  • Contact: Liu Hong-Qin

关键词: 粘度, 导热系数, 饱和汽, 液相, 蒸发潜热, 温度

Abstract:

A correlation of free volume of saturated vapor with that of coexisting liquid phase is derived from the cell theory of flulds. Then this correlation is combined with a revised free volume model proposed by this author for viscosity and thermal conductivity, equations are derived which correlate the viscosities and thermal conductivities of coekisting vapors and liqueds with heat of vaporization and temperature. The literature data for 44 representative substances are used to test the equations and the results are satisfactory. It can be seen from this work that there might exist some relations between the transport properties of vapors and those of coexisting liquids.

Key words: Viscosity, Thermal conductivity, Saturated Vapors, Liquids phase, Heat of vaporization, Temperature