THERMODYNAMIC OPTIMIZATION METHOD OF A TRIPLE EFFECT ABSORPTION SYSTEM WITH WASTED HEAT-RECOVERY

A detailed performance study is done for a water-lithium bromide tripl e regenerative effect absorption refrigerating system, with heat recov ery. An analysis method is developed and implemented on a computer cod e to simulate the operation and control of the system under realistic conditions. The thermodynamic performances of the system are described by means of exergetic and energetic based criteria. The numerical res ults revealed that, by recovering wasted thermal energy into a heating effect, the system global exergetic efficiency is sensibly increased. It is also demonstrated that the amount of heat produced by the syste m decreases with the temperature of the heating effect while the globa l exergetic efficiency is increased.