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A numerical investigation into the heat transfer and melting process of lauric acid in a rectangular enclosure with three values of wall heat flux

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conference contribution
posted on 19.09.2018 by Mohamed Fadl, Philip Eames
A numerical study of melting of Lauric acid in a vertical rectangular cross-section enclosure was performed with FLUENT 18.2. The enclosure was subject to a constant heat flux on one side of 500, 750 and 1000 W/m2. For model validation purposes simulations were initially performed of experimental systems in the literature with predicted values compared to experimental measurements. Predictions indicate that during the initial stage of melting, conduction is the dominant mode of heat transfer, subsequently replaced by convection when there is sufficient liquid PCM. The simulations show that as the magnitude of heat flux is increased, average wall temperature increases and melting time reduces. The predicted results indicated that melting time decreases by 28.5 % as the wall flux increases by 50 % from 500 to 750 W/m2. The time required for melting reduces by about 50% when the wall heat flux is increased from 500 to 1000 W/m2.

Funding

The authors are grateful to the Engineering and Physical Sciences Research Council (EPSRC) for funding this work through Grant reference EP/N021304/1.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

10 th International Conference on Applied Energy (ICAE2018)

Citation

FADL, M.S. and EAMES, P.C., 2019. A numerical investigation into the heat transfer and melting process of lauric acid in a rectangular enclosure with three values of wall heat flux. Energy Procedia, 158, pp.4502-4509.

Publisher

© Elsevier

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

22/08/2018

Publication date

2019

Notes

This is an Open Access article. It is published by Elsevier under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (CC BY-NC-ND 4.0). This paper was also presented at the 10th International Conference on Applied Energy (ICAE2018), Hong Kong, China, 22-25 August 2018.

ISSN

1876-6102

Language

en

Location

Hong Kong, China

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