Date: 13 Dec 2012

Theoretical Analysis of Overall Heat Loss Coefficient in a Flat Plate Solar Collector with an In-Built Energy Storage Using a Phase Change Material

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Abstract

Flat Plate Solar Heater is one of the most widely used devices to harness solar energy available in abundance. The collector efficiency can be improved by reducing the overall losses. Efficiency of the collector depends on overall loss coefficient which is the sum of Top loss, Bottom loss and edge loss. The present theoretical analysis is on Overall Heat Loss Coefficient of a solar collector with and without in-built Phase Change Material (PCM). Theoretical results show a reduction in Overall loss coefficient with decrease in distance between the absorber plate and PCM surface, and decrease in mean absorber plate temperature.