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Thermal enhancement of paraffin as a phase change material with nanomagnetite

Paraffin is a common phase-change-material (PCM) exploited in many thermal and solar energy storage applications. Its relatively large latent heat with a stable phase change, nontoxicity and noncorrosivity are the main reasons. Paraffin's low thermal conductivity may become a drawback for high...

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Bibliographic Details
Published in:Solar energy materials and solar cells 2014-07, Vol.126, p.56-61
Main Authors: SAHAN, Nurten, PAKSOY, Halime O
Format: Article
Language:English
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Summary:Paraffin is a common phase-change-material (PCM) exploited in many thermal and solar energy storage applications. Its relatively large latent heat with a stable phase change, nontoxicity and noncorrosivity are the main reasons. Paraffin's low thermal conductivity may become a drawback for high power applications. In this study, the effect of adding nanomaterials to enhance paraffin's thermal performance is investigated. Nanomagnetite (Fe sub(3)O sub(4)) particles were prepared by sol-gel method for this investigation. Once characterization of nanomagnetite was done, it was added at 1%, 5%, 10%, and 15% ratios to paraffin (melting range: 46-48 [degrees]C) to obtain a paraffin nanocomposite. Thermal characterization with Differential Scanning Calorimeter (DSC) shows that the latent heat storage capacity of paraffin has been increased for 10% nanomagnetite composite, while the melting temperature range remained the same.
ISSN:0927-0248
1879-3398
DOI:10.1016/j.solmat.2014.03.018