Design analysis and fabrication of solar vapour absorption

Abstract

Solar energy is one of the greenest sources of electricity and the idea of using it to power transportation is not new. In this work, parabolic dish is used to collect the solar irradiation, instead of Photo voltaic cells (PVC). This radiation is focused on to a point, where the water is heated to the required temperature and this heat energy is transferred to vapour absorption unit through the heat exchanger. In vapour absorption system (Three fluid systems) consists of a combination of three fluids ammonia and water and hydrogen. These fluids complete the vapour absorption cycle and provide the sufficient cooling. The experiments are conducted on the Solar Vapour absorption unit from 9:00A.M to 5:00P.M. For two days. Temperature readings of generator, Evaporator are taken on an hourly basis and C.O.P of the system at the minimum evaporator temperature is calculated. The system had attained a minimum evaporator temperature of 23°C at its peak generator temperature of 92°C.