THERMODYNAMIC ANALYSIS OF HALF TO DOUBLE EFFECT SOLAR OPERATED ABSORPTION SYSTEM FOR MECHANICAL ENGINEERING DEPARTMENT SEMINAR ROOM

Abstract

Thermodynamic analysis of half, single and double effect vapor absorption Libr-H2O solar powered cooling system is carried out on the basis of refrigeration load calculation of a specific building (seminar hall of mechanical department DTU}. Computational analysis has done for all systems using mass flow and energy balance equations. The heat transfer and exergy equations have been developed to get exergetic efficiency. The comparison of these cycles has been done on the basis of generator temperature and refrigeration load. The COP, exergetic efficiency, heat transfer rates and exergy destruction rates have also been calculated to understand cycle performance. Cooling load calculation also provides required solar panel area. As expected, COP and exergetic efficiency increases as number of effect increases. In all cycles maximum exergy loss occurs in generator and absorber and increases with generator temperature and evaporator load. Among all configurations single effect is most commonly used because of having moderate temperature operating range and ease in operation.