Experimental Investigation of Photovoltaic Panel Cooling System Assisted With Artificial Roughness

Heat Power Engineering

Photovoltaic cell converts solar energy into electrical energy. These systems combine a photovoltaic cell with a solar module i.e. converts solar radiation into electricity. A PV module converts 6-20% incident solar radiation into electricity according to its type and climate conditions. Mainly incident solar radiation is converted into heat which increases the temperature of Photovoltaic module and reduces its efficiency.The photovoltaic cell can be effectively improved by using artificial roughness in different forms, shapes and sizes. Artificial roughness is provided in the form of different geometries such as ribs, dimple shape roughness, wire mesh, baffles, delta winglets etc.The various roughness element geometries employed in solar cell in terms of heat transfer, friction factor and flow simulation geometries. Correlations developed for heat transfer and friction factor for different roughness geometries by various investigators in solar cell. By using roughness geometry on photovoltaic panel with working fluid of cooling air the temperature of solar panel decreases then efficiency of solar panel increases.

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