An Experimental Study of a Thermoelectric Cooling Unit Powered by Solar
DOI:
https://doi.org/10.63527/1607-8829-2025-2-49-59Keywords:
Thermoelectric Refrigeration (TER), Solar, Heat Exchanger, Thermoelectric refrigeratorAbstract
Solar-powered Thermoelectric Refrigeration (TER) provides a promising alternative to conventional cooling methods, reducing dependence on traditional electricity sources and mitigating environmental impact. The TER system boasts an extended lifespan and minimal maintenance requirements. Positioned as an economical solar-powered solution, TER is an accessible refrigeration option for individuals and in remote desert regions where grid electricity is unavailable. This study focuses on assessing the performance of TER. The research introduces a novel portable solar-powered thermoelectric refrigerator with a 30-liter capacity. The thermoelectric module's cooling effect is harnessed to create a refrigerated space, and the system is engineered to achieve a temperature of 16°C in the cold chamber for effective refrigeration. Experimental findings indicate thermoelectric cooling unit successfully reaches the temperature 16°C within 105 minutes, under room temperature of 29°C. The system hot side maintains a temperature of around 35°C with a water-cooled heat exchanger. This performance demonstrates the viability and efficiency of the proposed solar thermoelectric refrigerator for providing sustainable and reliable refrigeration in environments lacking conventional power infrastructure. The maximum COP obtained is 0.31. A solar-powered thermoelectric refrigerator offers eco-friendly cooling by utilizing renewable energy, reducing carbon emissions and dependence on conventional electricity.
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