Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/25658
Title: CFD analysis of phase-change material-based heat storage with dimple-shaped fins: evaluation of fin configuration and distribution pattern
Authors: Khedher, NB
Mahdi, JM
Majdi, HS
Khosravi, K
Al-Azzawi, WK
Al-Qrimli, FA
Dhahbi, S
Talebizadehsardari, P
Keywords: heat storage;thermal enhancement;energy efficiency;dimple fins;shell-and-tube
Issue Date: 30-Sep-2022
Publisher: Oxford University Press on behalf of the Society for Computational Design and Engineering.
Citation: Khedher, N.B. et al. (2022) 'CFD analysis of phase-change material-based heat storage with dimple-shaped fins: evaluation of fin configuration and distribution pattern', Journal of Computational Design and Engineering, 9 (5), pp. 2055 - 2072. doi: 10.1093/jcde/qwac105.
Abstract: Copyright © The Author(s) 2022. Phase-change materials (PCMs) have a remarkable potential for use as efficient energy storage means. However, their poor response rates during energy storage and retrieval modes require the use of heat transfer enhancers to combat these limitations. This research marks the first attempt to explore the potential of dimple-shaped fins for the enhancement of PCM thermal response in a shell-and- tube casing. Fin arrays with different dimensions and diverse distribution patterns were designed and studied to assess the effect of modifying the fin geometric parameters and distribution patterns in various spatial zones of the physical domain. The results indicate that increasing the number of dimple fins in the range of 8–32 results in faster heat storage rates by up to 8.7% faster than they would be without the dimple fins. Further improvements of approximately 1.4, 1.2, 1.1, and 1.0% can be obtained by optimizing the position of the first fin section, the spacing between other fin sections, the fin spacing based on the aromatic algorithm, and the use of the staggered fin distribution. The heat storage rate is improved by almost 12% for the best case compared with that of the no-fin case.
URI: https://bura.brunel.ac.uk/handle/2438/25658
DOI: https://doi.org/10.1093/jcde/qwac105
Other Identifiers: ORCID iD: Pouyan Talebizadehsardari https://orcid.org/0000-0001-5947-8701
Appears in Collections:Dept of Mechanical and Aerospace Engineering Research Papers
Institute of Energy Futures

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