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Solid/liquid phase change heat transfer in latent heat thermal energy storage
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Zhou, Dan and Zhao, Changying (2009) Solid/liquid phase change heat transfer in latent heat thermal energy storage. In: 3rd International Conference on Energy Sustainability, San Francisco, CA, U.S.A., JUL 19-23, 2009. Published in: ES2009: Proceedings of the ASME 3rd International Conference on Energy Sustainability, Vol.2 pp. 863-869. ISBN 978-0-7918-4890-6. doi:10.1115/ES2009-90052 ISSN ISBN: 978-0-7918-4890-6.
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Official URL: http://dx.doi.org/10.1115/ES2009-90052
Abstract
Phase change materials (PCMs) have been widely used for thermal energy storage systems due to their capability of storing and releasing large amounts of energy with a small volume and a moderate temperature variation. Most PCMs suffer the common problem of low thermal conductivity, being around 0.2 and 0.5 for paraffin and inorganic salts, respectively, which prolongs the charging and discharging period. In an attempt to improve the thermal conductivity of phase change materials, the graphite or metallic matrix is often embedded within PCMs to enhance the heat transfer.
This paper presents an experimental study on heat transfer characteristics of PCMs embedded with open-celled metal foams. In this study both paraffin wax and calcium chloride hexahydrate are employed as the heat storage media. The transient heat transfer behavior is measured. Compared to the results of pure PCMs samples, the investigation shows that the additions of metal foams can double the overall heat transfer rate during the melting process. The results of calcium chloride hexahydrate are also compared with those of paraffin wax.
Item Type: | Conference Item (Speech) | ||||
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Subjects: | T Technology > TJ Mechanical engineering and machinery | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | ES2009: Proceedings of the ASME 3rd International Conference on Energy Sustainability | ||||
Publisher: | American Society of Mechanical Engineers | ||||
ISBN: | 978-0-7918-4890-6 | ||||
ISSN: | ISBN: 978-0-7918-4890-6 | ||||
Official Date: | 2009 | ||||
Dates: |
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Volume: | Vol.2 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 863-869 | ||||
DOI: | 10.1115/ES2009-90052 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Speech | ||||
Title of Event: | 3rd International Conference on Energy Sustainability | ||||
Type of Event: | Conference | ||||
Location of Event: | San Francisco, CA, U.S.A. | ||||
Date(s) of Event: | JUL 19-23, 2009 |
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