Novel ventilation cooling system for reducing air conditioning in buildings.: Part I: testing and theoretical modelling
✍ Scribed by J.R. Turnpenny; D.W. Etheridge; D.A. Reay
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 370 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1359-4311
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✦ Synopsis
A latent heat storage unit incorporating heat pipes embedded in phase change material (PCM) is developed and tested for a novel application in low energy cooling of buildings. A one-dimensional mathematical model of the heat transfer from air to PCM is presented to allow sizing of a test unit. Details of the construction and testing of one heat pipe/PCM unit in a controlled environment are described, and measurements of heat transfer rate and melting times are presented. When the dierence between air and PCM temperature was 58C, the heat transfer rate was approximately 40 W over a melt period of 19 h. The heat transfer rate could be improved, and the phase change time shortened, with an alternative design for ®nning of the heat pipe inside the PCM.