Numerical Simulation of Solar Absorption Machine

An analytical study is to performed on solar energy utilization in space cooling using a solar lithium bromide absorption system. The introduction presents the importance, the availability and the applications of solar energy, followed by a description for solar absorption machine [1,2]. Matlab numerical simulation of this system illustrates the change of the temperatures in the main parts starting from the collector since the temperatures change with the variation of the heat flux density provided from the sun. The temperature changes only in the part of heat exchanger collector and the idle heat exchanger where as in all other part. An electric source is required to ensure the necessary heat that when the solar heat flux does not supply the total air conditioning load. Finally the paper is concluded by studying the variation of solar flux in three cities, the collector length and the auxiliary source required in each city.