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In this research article, an analytical model has been developed to examine the electrical and thermal behaviour of a solar photovoltaic module with top water cooling. Mathematical calculations have been performed under India, Chennai (latitude: 13.06° N and longitude: 80.11° E) prevailing weather conditions. Three modes of heat transfer mechanisms are considered in the thermal model and computed using improved correlations. The model validation against the experimental data exhibited a good agreement. Daily average electrical and overall thermal efficiency of a PV module with top water flow have been found to be 14.29% and 45.44% respectively. Water flows on top side of the PV module decreases the average module temperature of a day from 56.67°C to 39.44°C, and the average daily module electrical efficiency is increased up to 14.29%, compared to 12.74% efficiency of PV module without cooling.

A detailed mathematical modelling and experimental validation of top water cooled solar PV module