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Design and development of a Peltier-based atmospheric water generator for humid climates
(UMT, Lahore, 2025) Abdul Daiyem Imran and Sakhi Abbas
Access to clean and safe drinking water is a growing global concern, especially in regions facing water scarcity and unreliable infrastructure. This project presents the design and development of a Peltier-based atmospheric water generator (AWG) capable of extracting potable water directly from humid air using thermoelectric cooling. The proposed system leverages the temperature differential generated by a thermoelectric (Peltier) module to cool a surface below the dew point, causing water vapor in the air to condense into liquid form. A test model was built with TEC1-12706 Peltier modules, heatsinks, fans, and aluminum fins. These parts were placed inside an insulated box to help with condensation. We tested it in a controlled setting. This helped us measure how much water it produced and how much power it used at different humidity levels. The system was found applicable in producing clean water at elevated humidity ratios (greater than 65% RH), which proposes it as a low-cost and transportable water harvesting system that can be used in water-scarce and off-grid locations. This work presents the potential use of thermoelectric water harvesting as a green alternative to traditional water supply technologies, particularly in disaster relief operations and developing countries