Design and Performance Testing of an Energy-Saving Mini Refrigerator Prototype with Low Power Consumption Using a Peltier Module

Abstract

This study aims to develop and evaluate the performance of an energy-efficient mini refrigerator prototype with low electrical power consumption using a thermoelectric Peltier module and Styrofoam as the cooling chamber material. The prototype was designed as a simple and environmentally friendly cooling device that does not use conventional refrigerants, making it safer and more practical for small-scale applications. The Peltier module was selected because of its compact size, low noise operation, and ability to produce cooling through thermoelectric principles, while Styrofoam was utilized due to its good thermal insulation properties that help maintain low temperatures inside the storage chamber and reduce heat transfer from the surrounding environment. The research method involved the stages of prototype design, component assembly, and experimental performance testing by observing temperature changes and measuring electrical energy consumption during operation. The main components used in this system included a TEC1-12706 Peltier module, heatsink, cooling fan, DC power supply, and Styrofoam insulation box. Based on the testing results, the prototype was able to gradually reduce the internal temperature while maintaining relatively low power usage, and the use of Styrofoam contributed to improving temperature stability and cooling efficiency. Therefore, the developed mini refrigerator prototype has the potential to become an economical, portable, and energy-saving cooling solution for daily small-scale needs