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Investigation into boron nitride nanoparticle effects on thermal properties of calcium chloride hexahydrate (CaCl2·6H2O) as a phase change material

Published online by Cambridge University Press:  12 October 2018

Nastaran Barhemmati-Rajab
Affiliation:
Department of Mechanical & Energy Engineering, University of North Texas, 3940 North Elm Street, Suite F101, Denton, Texas 76207, USA
Weihuan Zhao*
Affiliation:
Department of Mechanical & Energy Engineering, University of North Texas, 3940 North Elm Street, Suite F101, Denton, Texas 76207, USA
*
Address all correspondence to Weihuan Zhao at weihuan.zhao@unt.edu
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Abstract

This paper presents thermal properties’ characterization of calcium chloride hexahydrate as a phase change material (PCM) combined with boron nitride nanoparticles (BNNPs), leading to efficient thermal management. BNNPs have high-thermal conductivity up to 200 W/m K. Therefore, the thermal conductivity of PCM could be remarkably enhanced by adding BNNPs to improve the heat transfer performance. In this study, 0.5 wt% of BNNPs were dispersed in the molten PCM. It has been found that the BNNPs could enhance the thermal conductivity of PCM by 71.9%, while reduce the latent heat of fusion and specific heat of PCM by 11.1% and 60.9%, respectively.

Type
Research Letters
Copyright
Copyright © Materials Research Society 2018 

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