themselves provide favorable nucleation sites and the crystals grow on themselves [1]. In an absorption
machine if the solution concentration is too high or the solution temperature is too low, crystallization
may occur, most likely in the solution heat exchanger. In this case, the concentrated solution temperature
should be increased above its saturation point so that salt crystals return to the solution [2]. The
crystallization curve of LiBr is shown in Figure A.1 in appendix A. Usually the absorption cycle is plotted
in a Dühring P-T chart, a pressure-temperature graph where the diagonal lines represent constant LiBr
mass fraction, with the pure water line at the left and crystallization line at the right.