Increasing the Efficiency of the Solar Cell by Using a Heat Exchanger Technique
DOI:
https://doi.org/10.22213/2413-1172-2023-1-23-27Keywords:
heat transfer, heat exchanger, cooling, Pv, Solar CellsAbstract
One of the problems that arise when generating renewable energy (using solar cells) in the world and in Iraq especially is high outside temperatures. Because of the properties of crystalline silicon used in the manufacture of solar cells, the electrical performance of solar panels is greatly affected by the operating temperature of silicon solar cells, which leads to a decrease in the energy generated by these cells increasing their temperature. In addition, to control this decrease in energy, the solar panels were cooled using a heat exchanger that uses water as a coolant. The heat exchanger technique can potentially increase the efficiency of a solar cell by using the waste heat generated during the photovoltaic process. This heat can be captured and used for pre-heating a water that is then passed through a heat exchanger, which transfers the heat to the outside. This can improve the overall efficiency of the solar cell. In this research, a copper heat exchanger has been used for cooling a solar cell and studying the effect of this cooling method on the temperature and efficiency of the PV. We used a source of light and warmth. With a halogen lamp, the results showed an accelerating manner, as the temperature of the solar cell increased, the open-circuit voltage decreased, but when using the heat exchanger, the temperature of the cell rose slowly, so the open-circuit voltage decreased slower compared to the first case during the same period, and this leads to the PV working with a higher efficiency under the same conditions.References
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