F. Redoine , N. Belouaggadia , R. Lbibb , N. Sebaibi
{"title":"Improving thermal energy storage system performance with innovative honeycomb fins","authors":"F. Redoine , N. Belouaggadia , R. Lbibb , N. Sebaibi","doi":"10.1016/j.tsep.2024.102988","DOIUrl":null,"url":null,"abstract":"<div><div>Thermal Energy Storage using Latent Heat (TES-LH) systems offers a promising solution for mitigating the intermittency of solar energy and meeting growing energy demands. However, the low thermal conductivity of storage materials poses a challenge to their efficiency. This study introduces an innovative approach by incorporating hexagonal honeycomb annular fins into TES-LH devices to enhance heat transfer performance. CFD simulations were conducted using ANSYS Fluent to analyze a tubular TES-LH device equipped with these fins and a phase-change material (PCM). The parametric analysis focused on the effect of hexagonal cell thickness and length on PCM melting time. The new design was compared with conventional TES-LH units, and the influence of Heat Transfer Fluid (HTF) inlet parameters, such as temperature and flow rate, on PCM melting time was investigated. The results reveal that the honeycomb fin design significantly improves heat transfer, reducing PCM melting time from 840 s in the conventional setup to 216 s. This improvement is attributed to the increased surface area provided by the fins, enhancing the overall efficiency of the TES-LH system. Additionally, the impact of HTF inlet temperature and velocity on PCM melting time are highlighted. These findings demonstrate the potential for significant advancements in TES-LH systems, making them more efficient for real-world applications.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"55 ","pages":"Article 102988"},"PeriodicalIF":5.1000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thermal Science and Engineering Progress","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451904924006061","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
Thermal Energy Storage using Latent Heat (TES-LH) systems offers a promising solution for mitigating the intermittency of solar energy and meeting growing energy demands. However, the low thermal conductivity of storage materials poses a challenge to their efficiency. This study introduces an innovative approach by incorporating hexagonal honeycomb annular fins into TES-LH devices to enhance heat transfer performance. CFD simulations were conducted using ANSYS Fluent to analyze a tubular TES-LH device equipped with these fins and a phase-change material (PCM). The parametric analysis focused on the effect of hexagonal cell thickness and length on PCM melting time. The new design was compared with conventional TES-LH units, and the influence of Heat Transfer Fluid (HTF) inlet parameters, such as temperature and flow rate, on PCM melting time was investigated. The results reveal that the honeycomb fin design significantly improves heat transfer, reducing PCM melting time from 840 s in the conventional setup to 216 s. This improvement is attributed to the increased surface area provided by the fins, enhancing the overall efficiency of the TES-LH system. Additionally, the impact of HTF inlet temperature and velocity on PCM melting time are highlighted. These findings demonstrate the potential for significant advancements in TES-LH systems, making them more efficient for real-world applications.
期刊介绍：
Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.
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