Modeling and Simulation of Solar absorption cooling system for Maiduguri, Borno State, Nigeria

Daniel Isuwa, Sulaimon Shodiya, Fasiu A. Oluwole

Abstract


Aspen plus model was used to predict the performance of the solar absorption cooling system using weather data of Maiduguri. This work simulates, analyze and optimize absorption refrigeration system using a flat-plate solar collector and LiBr-H2O mixture as the working fluid. The LiBr-H2O solution used shows higher cooling performance compared to other mixtures under the same absorption cooling cycle conditions. The cooling capacity and the coefficient of performance of the system (COP) were analyzed by varying all the independent parameters, namely: generator temperature, evaporator temperature, refrigerant concentration, and solar collector area.  The result shows that these parameter values increases with increase in generator temperature but with negligible effects of evaporator and condenser pressures on the cooling capacity and cooling performance of the solar absorption cooling system. The coefficient of performance of 0.79 was obtained

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References


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