Review Paper on Design & Fabrication of Solar Assisted Peltier Based Thermoelectric Refrigeration System

Refrigeration systems are essential for food preservation, medical storage, and industrial applications. Conventional vapor compression systems consume high electrical energy and use refrigerants that contribute to environmental pollution and global warming. Thermoelectric refrigeration, based on the Peltier effect, provides an eco-friendly alternative without refrigerants and moving parts. This paper presents the design and fabrication of a solar assisted thermoelectric refrigeration system using a 25–30 W solar panel and a 1 ft³ insulated cooling chamber. The system converts solar energy into electrical energy, which powers a Peltier module to produce cooling. Theoretical analysis includes heat load calculation, coefficient of performance (COP), and heat transfer analysis. Experimental and literature-based results indicate that the system can achieve a temperature drop of 15–20°C below ambient temperature with a COP of approximately 0.6–0.7, making it suitable for small-scale cooling applications in remote areas.