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Optimization of melting performance of a heat storage tank under rotation conditions : Based on taguchi design and response surface method

Huang, Xinyu ; Li, Fangfei ; Li, Yuanji ; Meng, Xiangzhao ; Yang, Xiaohu and Sundén, Bengt LU (2023) In Energy 271.
Abstract

The melting performance of a rotating triplex-tube latent heat thermal energy storage unit is studied by numerical simulation method. The Taguchi design and response surface method are applied to its optimized design. Firstly, the Taguchi design method is used to quantitatively reveal the specific effects of fin distribution, fin number, and fin material on the melting performance of the unit. Compared with all-inner tube-fin or all-outer tube-fin structures, the melting time of alternating inside and outside fin structures is shortened by 52.64% and 32.42%, the average heat absorption rate is greatly increased by 105.56% and 47.26%, and the total heat is reduced by 2.64% and 2.17%, respectively. Then, the response surface method is... (More)

The melting performance of a rotating triplex-tube latent heat thermal energy storage unit is studied by numerical simulation method. The Taguchi design and response surface method are applied to its optimized design. Firstly, the Taguchi design method is used to quantitatively reveal the specific effects of fin distribution, fin number, and fin material on the melting performance of the unit. Compared with all-inner tube-fin or all-outer tube-fin structures, the melting time of alternating inside and outside fin structures is shortened by 52.64% and 32.42%, the average heat absorption rate is greatly increased by 105.56% and 47.26%, and the total heat is reduced by 2.64% and 2.17%, respectively. Then, the response surface method is applied to the eight alternating fins obtained by the Taguchi design, and the effects of fin length, width, and rotation angle on the melting time and average heat absorption rate of the unit are studied. Compared with the original structure, the optimal structure reduces the total melting time by 7.37% and increases the average heat absorption rate by 7.23%. The geometric parameters’ interaction with the relevant target response is studied, and the corresponding fluid-structure interaction equation is fitted. Finally, the melt growth phenomenon near the wall is found in the initial melting stage of the optimized model by mechanism analysis.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Design and optimization, Latent heat energy storage, Melting performance, Rotation conditions
in
Energy
volume
271
article number
127100
publisher
Elsevier
external identifiers
  • scopus:85149387617
ISSN
0360-5442
DOI
10.1016/j.energy.2023.127100
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2023 Elsevier Ltd
id
1efe2d1d-caff-4713-8dee-2aa6d46df744
date added to LUP
2024-01-12 14:02:16
date last changed
2024-01-12 14:03:55
@article{1efe2d1d-caff-4713-8dee-2aa6d46df744,
  abstract     = {{<p>The melting performance of a rotating triplex-tube latent heat thermal energy storage unit is studied by numerical simulation method. The Taguchi design and response surface method are applied to its optimized design. Firstly, the Taguchi design method is used to quantitatively reveal the specific effects of fin distribution, fin number, and fin material on the melting performance of the unit. Compared with all-inner tube-fin or all-outer tube-fin structures, the melting time of alternating inside and outside fin structures is shortened by 52.64% and 32.42%, the average heat absorption rate is greatly increased by 105.56% and 47.26%, and the total heat is reduced by 2.64% and 2.17%, respectively. Then, the response surface method is applied to the eight alternating fins obtained by the Taguchi design, and the effects of fin length, width, and rotation angle on the melting time and average heat absorption rate of the unit are studied. Compared with the original structure, the optimal structure reduces the total melting time by 7.37% and increases the average heat absorption rate by 7.23%. The geometric parameters’ interaction with the relevant target response is studied, and the corresponding fluid-structure interaction equation is fitted. Finally, the melt growth phenomenon near the wall is found in the initial melting stage of the optimized model by mechanism analysis.</p>}},
  author       = {{Huang, Xinyu and Li, Fangfei and Li, Yuanji and Meng, Xiangzhao and Yang, Xiaohu and Sundén, Bengt}},
  issn         = {{0360-5442}},
  keywords     = {{Design and optimization; Latent heat energy storage; Melting performance; Rotation conditions}},
  language     = {{eng}},
  month        = {{05}},
  publisher    = {{Elsevier}},
  series       = {{Energy}},
  title        = {{Optimization of melting performance of a heat storage tank under rotation conditions : Based on taguchi design and response surface method}},
  url          = {{http://dx.doi.org/10.1016/j.energy.2023.127100}},
  doi          = {{10.1016/j.energy.2023.127100}},
  volume       = {{271}},
  year         = {{2023}},
}