Abstract
A two-dimensional heat transfer model has been developed for an unsteady regime, the results obtained are focused on the isothermal contours, and the temperature variation over time. The results obtained show the influence of the number of fins on the temperature rise of the PV- PCM system. The improvement in thermal performance achieved by using PCM is significant. The fins allow a more uniform temperature distribution within the PV- PCM system and maintained. The natural convective flows in the molten PCM increase the heat transfer in the PCM, and further enhance the ability of the thermal control effect on the PV. However, increasing the number of fins can limit the movement of molten PCM. Finally, the results obtained have met with great success concerning the PV- PCM system. Specifically, a rise in efficacy of 13.59% and 12.36%, respectively had been achieved with the PV2 and PV3 (PVs with PCM) systems, in comparison with PV without PCM.
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