Page 595 - Modelling in Transport Phenomena A Conceptual Approach

Appendix D

Physical Properties

This appendix contains physical properties of some frequently encountered mate-
rials in the transport of momentum, energy and mass. The reader should refer to
either Perry’s Chemical Engineers’ Handbook (1997) or CRC Handbook of Chem-
istry and Physics (2001) for a more extensive list of physical properties.
Table D.1 contains viscosities of gases and liquids, as taken from Reid et al.
(1977). Table D.2 contains thermal conductivities of gases, liquids and solids.
While gas and liquid thermal conductivities are compiled from Reid et al. (1977)’
solid thermal conductivity values are taken from Perry’s Chemical Engineers’ Hand-
book (1997). The values of the diffusion coefficients given in Table D.3 are com-
piled from Reid et al. (1977)’ Perry’s Chemical Engineers’ Handbook (1997) and
Geankoplis (1972).
Table D.4 contains the physical properties of dry air at standard atmospheric
pressure. The values are taken from Kays and Crawford (1980) who obtained the
data from the three volumes of Touloukian et al. (1970). The physical properties
of saturated liquid water, given in Table D.5, are taken from Incropera and DeWitt
(1996) who adapted the data from Liley (1984).
A widely used vapor pressure correlation over limited temperature ranges is the
Antoine equation expressed in the form

where Psat is in mmHg and T is in degrees Kelvin. The Antoine constants A, B
and C, given in Table D.6 for various substances, are taken from Reid et al. (1977).