Journal
ENERGY AND BUILDINGS
Volume 41, Issue 3, Pages 354-359Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2008.10.008
Keywords
Building; Cooling; Cold storage; Experimental and numerical analysis
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This article presents an experimental analysis of cooling buildings using nighttime cold accumulation in a phase change material (PCM), otherwise known as the free-cooling principle. Studies of the ceiling and floor free-cooling principle, as well as passive cooling, are presented. The free-cooling principle is explained and some of the types of PCMs suitable for summer cooling are listed. An experiment was conducted using paraffin with a melting point of 22 degrees C as the PCM to store cold during the nighttime and to cool hot air during the daytime in summer. Air temperatures and heat fluxes as a function of time are presented for different air velocities and inlet temperatures. (C) 2008 Elsevier B.V. All rights reserved.
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