JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A 2013 Vol.14 No.5 P.307-316

http://doi.org/10.1631/jzus.A1200208

Numerical study of the melting of nano-enhanced phase change material in a square cavity

Author(s): Seyed Sahand Sebti¹, Mohammad Mastiani^1,3, Hooshyar Mirzaei¹, Abdolrahman Dadvand¹, Sina Kashani², Seyed Amir Hosseini³
Affiliation(s): 1. Department of Mechanical Engineering, Urmia University of Technology, Urmia, Iran; more
Corresponding email(s): M.Mastiani@yahoo.com
Key Words: Nanofluid, Phase change material (PCM), Melting, Thermal energy storage, Square cavity

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Seyed Sahand Sebti, Mohammad Mastiani, Hooshyar Mirzaei, Abdolrahman Dadvand, Sina Kashani, Seyed Amir Hosseini. Numerical study of the melting of nano-enhanced phase change material in a square cavity[J]. Journal of Zhejiang University Science A, 2013, 14(5): 307-316.

@article{title="Numerical study of the melting of nano-enhanced phase change material in a square cavity",
author="Seyed Sahand Sebti, Mohammad Mastiani, Hooshyar Mirzaei, Abdolrahman Dadvand, Sina Kashani, Seyed Amir Hosseini",
journal="Journal of Zhejiang University Science A",
volume="14",
number="5",
pages="307-316",
year="2013",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1200208"
}

%0 Journal Article
%T Numerical study of the melting of nano-enhanced phase change material in a square cavity
%A Seyed Sahand Sebti
%A Mohammad Mastiani
%A Hooshyar Mirzaei
%A Abdolrahman Dadvand
%A Sina Kashani
%A Seyed Amir Hosseini
%J Journal of Zhejiang University SCIENCE A
%V 14
%N 5
%P 307-316
%@ 1673-565X
%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200208

TY - JOUR
T1 - Numerical study of the melting of nano-enhanced phase change material in a square cavity
A1 - Seyed Sahand Sebti
A1 - Mohammad Mastiani
A1 - Hooshyar Mirzaei
A1 - Abdolrahman Dadvand
A1 - Sina Kashani
A1 - Seyed Amir Hosseini
J0 - Journal of Zhejiang University Science A
VL - 14
IS - 5
SP - 307
EP - 316
%@ 1673-565X
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1200208

Abstract
Chinese Summary
Academic Network
Reviewer Comment

Abstract: A comprehensive numerical study was conducted to investigate heat transfer enhancement during the melting process in a 2D square cavity through dispersion of nanoparticles. A paraffin-based nanofluid containing various volume fractions of Cu was applied. The governing equations were solved on a non-uniform mesh using a pressure-based finite volume method with an enthalpy porosity technique to trace the solid-liquid interface. The effects of nanoparticle dispersion in a pure fluid and of some significant parameters, namely nanoparticle volume fraction, cavity size and hot wall temperature, on the fluid flow, heat transfer features and melting time were studied. The results are presented in terms of temperature and velocity profiles, streamlines, isotherms, moving interface position, solid fraction and dimensionless heat flux. The suspended nanoparticles caused an increase in thermal conductivity of nano-enhanced phase change material (NEPCM) compared to conventional PCM, resulting in heat transfer enhancement and a higher melting rate. In addition, the nanofluid heat transfer rate increased and the melting time decreased as the volume fraction of nanoparticles increased. The higher temperature difference between the melting temperature and the hot wall temperature expedited the melting process of NEPCM.

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