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Thermal transport properties enhancement of paraffin via encapsulation into boron nitride nanotube: a molecular dynamics study

Published online by Cambridge University Press:  25 June 2020

Nastaran Barhemmati-Rajab
Affiliation:
Department of Mechanical and Energy Engineering, University of North Texas, Denton, TX76203, USA
Thiruvillamalai Mahadevan
Affiliation:
Department of Materials Science and Engineering, University of North Texas, Denton, TX76203, USA
Jincheng Du
Affiliation:
Department of Materials Science and Engineering, University of North Texas, Denton, TX76203, USA
Weihuan Zhao
Affiliation:
Department of Mechanical and Energy Engineering, University of North Texas, Denton, TX76203, USA
Corresponding
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Abstract

This research investigates a novel composite of encapsulated paraffin in boron nitride nanotube (BNNT) which is more thermally and chemically stable than carbon nanotube. This composite can achieve high thermal conductivity and, meanwhile, have thermal energy storage capability for efficient thermal management under extreme conditions. Equilibrium molecular dynamics simulations were conducted to study self-diffusion coefficient, thermal conductivity, and specific heat of encapsulated paraffin. The simulation results indicated that the self-diffusion coefficient and thermal conductivity of paraffin could be increased by up to 10 and 7 times, respectively, while specific heat was reduced after encapsulating into BNNT.

Type
Research Letters
Copyright
Copyright © Materials Research Society, 2020

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