LiBr Property Library

Contents - Index

LiBr Property Library

This library provides property data for lithium bromide-water mixtures based on information from the 1989 ASHRAE Handbook of Fundamentals. Note that these data are outdated. However, this library is provided for backward compatibility and use with programs developed for the book:

Absorption Chillers and Heat Pumps
Herold, Radermacher, and Klein
CRC Press, 1995

Better property data for lithium bromide-water mixtures is provided with EES from two sources:

1) Correlations provided by Patek and Klomfar, Int. J. of Refrigeration, Vol 29, pp. 566-578, (2006) are provided in the LiBrH2O external library file that is also provided with EES. Documentation on the use of these data are available here.

2) Correlations provided by Yuan and Herold, HVAC&R Research, Vol 11, No. 3, pp. 377-393 (2005). These correlations are used in the second edition of the book. Documentation of the functions can be viewed here.

Absorption Chillers and Heat Pumps, 2nd edition
Herold, Radermacher, and Klein
CRC Press, 2016

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The thermodynamic properties of mixtures of lithium bromide and water are implemented as an externally compiled EES routine. The routines operate in either English or SI units. The unit specification is a string constant or variable which is set to either 'Eng' or 'SI' and provided as the first parameter in the functions. (An older form in which the units is indicated with a 1 or 2 in an extra parameter is still accepted.) Click on property for which you would like more information.

H_LIBR (enthalpy)
T_LIBR (temperature)
P_LIBR (pressure)
V_LIBR (volume)
X_LIBR (concentration)
Q_LIBR (quality)
VISC_LIBR (viscosity)
COND_LIBR (thermal conductivity)

The LIBR.DLL external routine provides five EES external functions and one EES external procedure in a single DLL file. The LIBR.DLL routine was written and compiled in DELPHI.