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An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials

T. Zhao, Y.T. Feng, Yuntian Feng Orcid Logo

Powder Technology

Swansea University Author: Yuntian Feng Orcid Logo

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Abstract

The latent thermal energy storage of phase change materials (PCM) is an attractive technique to use renewable energy. Systems with PCM capsules can be found in a wide variety of applications, but PCMs are usually approximated as a continuous phase in previous studies. The current work investigates t...

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Published in: Powder Technology
ISSN: 0032-5910
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa50889
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first_indexed 2019-06-19T20:52:49Z
last_indexed 2019-06-24T14:56:16Z
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spelling 2019-06-24T10:11:38.7992921 v2 50889 2019-06-19 An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials d66794f9c1357969a5badf654f960275 0000-0002-6396-8698 Yuntian Feng Yuntian Feng true false 2019-06-19 CIVL The latent thermal energy storage of phase change materials (PCM) is an attractive technique to use renewable energy. Systems with PCM capsules can be found in a wide variety of applications, but PCMs are usually approximated as a continuous phase in previous studies. The current work investigates this problem from the discontinuous point of view. The main objective is to develop an enthalpy based discrete thermal formulation that can take both heat conduction and phase change transition into consideration. The computational aspect of the formulation is fully discussed. The resulting algorithm is simple and effective. Its validity is demonstrated by solving a discrete/particle version of the one-phase Stenfan problem. In addition, the equivalent thermal properties of bulk particle materials with phase change are also derived based on a simple multi-scale modelling scheme. Numerical simulations are conducted to illustrate the effectiveness of the proposed enthalpy based discrete thermal modelling (DTEM) framework. Journal Article Powder Technology 0032-5910 Phase change material, Discrete thermal element method, Effective thermal conductivity, Stefan problem 31 12 2019 2019-12-31 10.1016/j.powtec.2019.06.028 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2019-06-24T10:11:38.7992921 2019-06-19T15:16:47.7378689 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering T. Zhao 1 Y.T. Feng 2 Yuntian Feng 0000-0002-6396-8698 3 0050889-24062019101035.pdf zhao2019(2).pdf 2019-06-24T10:10:35.4470000 Output 10153874 application/pdf Accepted Manuscript true 2020-06-19T00:00:00.0000000 © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ false eng
title An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
spellingShingle An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
Yuntian Feng
title_short An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
title_full An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
title_fullStr An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
title_full_unstemmed An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
title_sort An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
author_id_str_mv d66794f9c1357969a5badf654f960275
author_id_fullname_str_mv d66794f9c1357969a5badf654f960275_***_Yuntian Feng
author Yuntian Feng
author2 T. Zhao
Y.T. Feng
Yuntian Feng
format Journal article
container_title Powder Technology
publishDate 2019
institution Swansea University
issn 0032-5910
doi_str_mv 10.1016/j.powtec.2019.06.028
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
active_str 0
description The latent thermal energy storage of phase change materials (PCM) is an attractive technique to use renewable energy. Systems with PCM capsules can be found in a wide variety of applications, but PCMs are usually approximated as a continuous phase in previous studies. The current work investigates this problem from the discontinuous point of view. The main objective is to develop an enthalpy based discrete thermal formulation that can take both heat conduction and phase change transition into consideration. The computational aspect of the formulation is fully discussed. The resulting algorithm is simple and effective. Its validity is demonstrated by solving a discrete/particle version of the one-phase Stenfan problem. In addition, the equivalent thermal properties of bulk particle materials with phase change are also derived based on a simple multi-scale modelling scheme. Numerical simulations are conducted to illustrate the effectiveness of the proposed enthalpy based discrete thermal modelling (DTEM) framework.
published_date 2019-12-31T03:59:58Z
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score 10.928156