ESDU 93003-1993
制冷剂R-134a(1 1 1 2-四氟乙烷)的热物理性质

Thermophysical properties of refrigerant R-134a (1@1@1@2-tetrafluoroethane)


 

 

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标准号
ESDU 93003-1993
发布
1993年
发布单位
ESDU - Engineering Sciences Data Unit
当前最新
ESDU 93003-1993
 
 
适用范围
ESDU 93003 provides evaluated thermophysical properties data for 1@1@1@2-tetrafluoroethane (R134a). Equations@ based on a critical evaluation of experimental data in the literature are given for the variation with temperature along the saturation line for the following liquid and vapour properties: density@ specific enthalpy@ specific heat capacity at constant pressure@ dynamic viscosity and thermal conductivity. Also given are equations for the variation with temperature along the saturation line of the vapour pressure@ latent heat of vaporisation and surface tension. Also presented are equations for the variation with temperature of the specific heat capacity at constant pressure and specific enthalpy in the ideal gas@ the dilute gas dynamic viscosity and thermal conductivity. Saturation line properties in SI units@ calculated from the equations are tabulated at 5 K intervals and at 5 degree Celsius intervals from the melting point to the critical point or to within 30 K for some properties. Ideal and dilute gas properties@ also in SI units calculated from the equations are tabulated at 20 K and at 20 degree Celsius intervals from the melting point to 1000 K. In the absence of experimental data@ the tabulated data are extrapolated values and these are indicated in the tables. Conversion factors to facilitate use of the equations and tables in British units are included. A full bibliography is given of the sources consulted.

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