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Design of a Humidity Free Air Cooler Using TEC Module-Heat Exchanger

Debarupam Gogoi, Manav Jyoti Borah, Anupam Konwar, Nayan Jyoti Hazarika, Nidarshana Chakravartty, Chen Aim Chakhap


Conversion of temperature differences to electric voltage and vice versa is the thermoelectric effect. Voltage is created when there is a different temperature on each side of a thermoelectric device and when a voltage is applied to it, temperature difference is created. This is used to attain cooling effect on thermoelectric cooling (TEC) plate. In this project, two TEC plates are used on two sides of copper plate heat exchanger to build an air cooler of portable type. Two heat sink fans with fins are adjusted with the TEC plates. Water is pumped through the ice box inside the cooler and cooled water gets circulated through copper tubing and flows back to ice box. The air gets cool from the cooled tube surface. COP of the system was found to be approximately 7. The system is useful due to its affordability of less cost requirement during the manufacturing process. The humidity of the environment is not changed due to cool air supplied by the system, as there is no direct contact of warm air and cooled water. The advantage of using it in more humid hot conditions is the motivation of the project. 


thermoelectric cooling plate, thermoelectric module, heat exchanger, heat sink

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