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An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials
Powder Technology
Swansea University Author:
Yuntian Feng
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PDF | Accepted Manuscript
© 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/
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DOI (Published version): 10.1016/j.powtec.2019.06.028
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...
Published in: | Powder Technology |
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ISSN: | 0032-5910 |
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2019
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URI: | https://cronfa.swan.ac.uk/Record/cronfa50889 |
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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 |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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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 |
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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 |
2019-12-31T04:02:34Z |
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1763753228010258432 |
score |
11.013799 |