NDLI: Solid/Liquid Phase Change Heat Transfer in Latent Heat Thermal Energy Storage

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Zhou, D. Zhao, C. Y.
Copyright Year	2009
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.
Sponsorship	Advanced Energy Systems Division and Solar Energy Division
Starting Page	863
Ending Page	869
Page Count	7
File Format	PDF
ISBN	9780791848906
DOI	10.1115/ES2009-90052
e-ISBN	9780791838518
Volume Number	ASME 2009 3rd International Conference on Energy Sustainability, Volume 2
Conference Proceedings	ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences
Language	English
Publisher Date	2009-07-19
Publisher Place	San Francisco, California, USA
Access Restriction	Subscribed
Subject Keyword	Phase change materials Metal foams Latent heat Temperature Melting Heat storage Graphite Thermal energy storage Thermal conductivity Transient heat transfer Heat transfer Paraffin wax
Content Type	Text
Resource Type	Article

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