An experimental study on atmospheric water generation and air-cooling by thermoelectric

Thermoelectric systems hold an important place in energy conversion technologies. In a thermoelectric system known as the Seebeck effect, electrical energy is generated through the potential difference that arises on a metal with surfaces at different temperatures. Conversely, in the Peltier effect, which is the reverse of this, heating and cooling of metals are achieved by applying a direct current to a closed circuit composed of two different metal elements. Thanks to these effects, it is possible to cool atmospheric humid air, causing the water vapor within it to condense and thus enabling water production and air conditioning. In this study, an experimental investigation was carried out on a test setup for the simultaneous production of atmospheric water and the cooling/heating of outside air. The relationship between the condensation water flow rate obtained from the system and the coefficients of performance (COP) for cooled/heated air was examined with respect to the distance between cold metal masses placed inside the air ducts and the air velocity within the ducts.According to the results, the highest condensation water flow rate was obtained at an air velocity of 1.5 m/s and a distance of 2 cm. The findings indicate that at all distance values, the heating, cooling, and total coefficients of performance increased steadily at varying rates with increasing air velocity. The highest COP values were obtained at a 1 cm distance and the highest air velocity in the duct