Contents - Index


T_LiBrH2O

Function T_LiBrH2O(P, x)  returns the equilibrium temperature of a liquid solution of lithium bromide and water as a function of the pressure, P, and composition, x.

P is expected to be provided in the unit system EES has been configured to operate in, which can be Pa, kPa, bar, MPa, psia, or atm.

The composition, x is assumed to be the lithium bromide  mass fraction if EES is configured to operate with specific properties on a mass basis.  If EES is configured to operate on a  molar basis, x is assumed to be the lithium bromide mole fraction.

The temperature, T, is assumed to be in the temperature units specified in the EES Unit System dialog, which can be C, K, F, or K.

The function is based on the correlation provided by:

Patek, J. and Klomfar, J., Int. J. of Refrigeration, Vol 29, pp. 566-578, (2006)
"A computationally effective formulation of the thermodynamic properties of LiBr-H2O from 273 to 500 K over full composition range"

Note:  A specific correlation for temperature is not provided in the above publication.  Temperature is determined by implicitly solving for pressure as a function of temperature and composition using the P_LiBrH2O function.

___________________________________________________________
Example:

$UnitSystem SI C kPa kJ mass
P=3.5 [kPa]
w=0.5 "mass fraction"
T=T_LiBrH2O(P,w)

{Solution:
T=50.08 [C]}

______________________________________________________________


Return to Function List