CONSTRUCTION AND PERFORMANCE ANALYSIS OF A THERMOELECTRIC REFRIGERATION SYSTEM

Abstract

The Thermoelectric Refrigeration System with Peltier Effect project focuses on designing and constructing a compact, efficient, and environmentally friendly cooling system. This solid-state system operates using the Peltier effect, which allows heat to be transferred from one side of a module to the other when an electric current passes through it. The main objective is to maintain a controlled low temperature for applications such as small-scale refrigeration, electronic cooling, and laboratory experiments.The system’s core components include a Peltier module as the cooling element, a Switched-Mode Power Supply (SMPS) for stable and adjustable DC power, a water cooling block as a heat sink, a pump motor for continuous water circulation, and a temperature sensor with a display for real-time monitoring. It was concluded that these experiments results into temperature of cold side of Thermoelectric refrigerator to be decreased from 20.8°C to 2.3°C for 8 minute with heat plate temperature being 25.4°C maximum and Water Temperature 25.3°C maximum 10 minute The SMPS converts the main 220 V AC supply into 12 V DC, ensuring proper operation of all DC components. The Peltier module produces cooling on the cold side and heating on the hot side, while the water block and pump maintain effective heat dissipation. Real-time temperature feedback allows precise monitoring and control. This project demonstrates the practical application of thermoelectric technology for efficient, low-power, and silent cooling systems