Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann method

This present study aims to clarify the enhancing effects of different T-shaped fins inside the horizontal shell and tube energy storage unit. The impact of various length-width ratios, rotation angles and eccentric distances of T-shaped fins are investigated. The results can be concluded as follows....

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Main Authors: Renkun Dai, Xing Lu, Xulei Tong, Jun Deng
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X2301167X
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author Renkun Dai
Xing Lu
Xulei Tong
Jun Deng
author_facet Renkun Dai
Xing Lu
Xulei Tong
Jun Deng
author_sort Renkun Dai
collection DOAJ
description This present study aims to clarify the enhancing effects of different T-shaped fins inside the horizontal shell and tube energy storage unit. The impact of various length-width ratios, rotation angles and eccentric distances of T-shaped fins are investigated. The results can be concluded as follows. The melting efficiency can be increased by 35.48% as the length-width radio increases from 0.5 to 2, for that the augment of length-width ratio can enhance the conduction process, but the enhancing amplitude gradually decreases. The increase of the rotation angle could result in decrease of the thermal performance. Compared to Ro = 0°, the melting efficiency can be decreased by 14.89% for Ro = 45°. With the augment of eccentric distances, the energy storage process is enhanced first and then weakened, the optimal eccentric distance is Ec = 2R2/3. T-shaped fins with the geometric parameters of AR = 2, Ro = 0° and Ec = 2R2/3 is the optimal configuration. Through the optimal configuration, the melting efficiency can be increased by 97.72% compared to finless tube, and it can be increased by 28.12% compared to rectangular fins. This study can further improve our understanding on the enhancing effects of T-shaped fins and provide guidance for its optimal configurations.
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spelling doaj.art-73f0e06388854f09b6adcf7201ff1d1b2024-01-12T04:56:43ZengElsevierCase Studies in Thermal Engineering2214-157X2024-01-0153103861Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann methodRenkun Dai0Xing Lu1Xulei Tong2Jun Deng3School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi, 710054, PR China; China Academy of Safety Science and Technology, Beijing, 100012, PR ChinaSchool of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi, 710054, PR ChinaSchool of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi, 710054, PR ChinaSchool of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, Shaanxi, 710054, PR China; Corresponding author.This present study aims to clarify the enhancing effects of different T-shaped fins inside the horizontal shell and tube energy storage unit. The impact of various length-width ratios, rotation angles and eccentric distances of T-shaped fins are investigated. The results can be concluded as follows. The melting efficiency can be increased by 35.48% as the length-width radio increases from 0.5 to 2, for that the augment of length-width ratio can enhance the conduction process, but the enhancing amplitude gradually decreases. The increase of the rotation angle could result in decrease of the thermal performance. Compared to Ro = 0°, the melting efficiency can be decreased by 14.89% for Ro = 45°. With the augment of eccentric distances, the energy storage process is enhanced first and then weakened, the optimal eccentric distance is Ec = 2R2/3. T-shaped fins with the geometric parameters of AR = 2, Ro = 0° and Ec = 2R2/3 is the optimal configuration. Through the optimal configuration, the melting efficiency can be increased by 97.72% compared to finless tube, and it can be increased by 28.12% compared to rectangular fins. This study can further improve our understanding on the enhancing effects of T-shaped fins and provide guidance for its optimal configurations.http://www.sciencedirect.com/science/article/pii/S2214157X2301167XThermal energy storagePhase changeT-shaped finsEccentric configurationLattice Boltzmann method
spellingShingle Renkun Dai
Xing Lu
Xulei Tong
Jun Deng
Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann method
Case Studies in Thermal Engineering
Thermal energy storage
Phase change
T-shaped fins
Eccentric configuration
Lattice Boltzmann method
title Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann method
title_full Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann method
title_fullStr Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann method
title_full_unstemmed Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann method
title_short Thermal performance analysis of different T-shaped fin configurations on thermal energy storage through simplified enthalpy based lattice Boltzmann method
title_sort thermal performance analysis of different t shaped fin configurations on thermal energy storage through simplified enthalpy based lattice boltzmann method
topic Thermal energy storage
Phase change
T-shaped fins
Eccentric configuration
Lattice Boltzmann method
url http://www.sciencedirect.com/science/article/pii/S2214157X2301167X
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AT xinglu thermalperformanceanalysisofdifferenttshapedfinconfigurationsonthermalenergystoragethroughsimplifiedenthalpybasedlatticeboltzmannmethod
AT xuleitong thermalperformanceanalysisofdifferenttshapedfinconfigurationsonthermalenergystoragethroughsimplifiedenthalpybasedlatticeboltzmannmethod
AT jundeng thermalperformanceanalysisofdifferenttshapedfinconfigurationsonthermalenergystoragethroughsimplifiedenthalpybasedlatticeboltzmannmethod