Study and Construction of a Purified Water Cooling and Heating System Using Peltier Module

Abstract

This project introduces a compact and energy-efficient water purification system that utilizes a Peltier module for both cooling and heating. The system incorporates a single-stage filtration process using a ceramic filter to ensure clean, mineral-enriched water. A pump motor circulates the water through the system, while the Peltier module regulates the temperature via the thermoelectric effect. The hot and cold-water chambers are thermally managed using aluminum heat sinks to enhance performance. An ATMEGA328PU microcontroller monitors the temperature through sensors, enabling real-time adjustments and display. The prototype consistently achieved heating and cooling within a temperature range of 18.8°C to 42.8°C in just 29 minutes. This system offers a sustainable solution for residential, office, and institutional use, providing purified water with user-defined temperature control. With low energy consumption, no moving parts, and simple operation, it demonstrates a promising application of thermoelectric technology in both water treatment and temperature regulation.