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Caravel Press
SET Proceedings

Volume 4, Book 1, 2005, Article 2005.060

SET Proceedings cover

Conference paper

Integrated Evaporative Cooling System Using Porous Ceramic Evaporators and Thermoelectric Cooling Device

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1Institute of Building Technology, School of the Built Environment, University of Nottingham, Nottingham, United Kingdom.

2Institute of Building Technologies, School of the Built Environment, University of Nottingham, Nottingham, United Kingdom

Published
23 September 2005
Pages
264-268
Received
23 September 2005
DOI
10.65582/set.2005.060
Access
Open access, © 2005 Copyright WSSET
Download PDF5 pages · 3.8 MB

Abstract

Evaporative cooling using porous ceramic evaporators were experimentally investigated. Encouraging results in terms of temperature reduction and cooling effectiveness were reported. In this work thermoelectric unit was integrated in to the evaporative cooling system containing porous ceramic evaporators. The warm inlet air cooled in the porous ceramics' evaporative cooling chamber was passed over the hot- side fins of the thermoelectric cooling device to act as a better heat sink. This increased the coefficient of performance, (COP) and is a measure of reducing high humidity associated with direct evaporative cooling applications. It also minimises material failure resulting from higher temperature generated at the hot side when a thermoelectric unit is in operation. The system was subjected to various psychometric test conditions consisting of varying the inlet temperatures and relative humidity. Also the power supplies to the thermoelectric unit as well as the exhaust fan were varied. Typical test results showed that the cold side temperature of thermoelectric unit was 5° Celsius lower and the hot side was 10° Celsius lower, respectively when operated on the wet and dry porous ceramics evaporative cooling chamber. The overall system performance is discussed and presented in this paper.

Keywords. evaporative cooling; porous ceramics; thermoelectric; humidity; temperature

References

© 2005 Copyright WSSET

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