Thermal management of refrigerant direct cooling and mass flow control strategies for multiple discrete heat sources system

IF 5.1 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-03-26 DOI:10.1016/j.tsep.2025.103546

Meiyan Xiong, Zhenwei Liu, Kun Liu, Yaodong Ding, Ping Li

{"title":"Thermal management of refrigerant direct cooling and mass flow control strategies for multiple discrete heat sources system","authors":"Meiyan Xiong, Zhenwei Liu, Kun Liu, Yaodong Ding, Ping Li","doi":"10.1016/j.tsep.2025.103546","DOIUrl":null,"url":null,"abstract":"<div><div>Challenges for controlling heat dissipation and temperature uniformity are presented by variations of heat source conditions in the power battery thermal management system. The efficiency of cooling systems can be enhanced by investigating the impact of heat source side variations on direct cooling performance for configurations with multi-point discrete heat sources. This study examines the effects of baseline heat sources arrangement, hotspot heat sources location and flow direction configuration on the direct cooling effect. The findings reveal that the influence of heat source arrangement on the direct cooling effect is similar under the same total heat generation, while the overall suitable operating mass flow rate interval range is lengthened with the increment of total heat generation. Furthermore, as the hotspot heat sources from outlet to inlet, the suitable operating mass flow rate interval of system changes from 0.164–0.207 g·s<sup>−1</sup> to a broader range of 0.119–0.334 g·s<sup>−1</sup>, with a maximum reduced working heat source temperature difference of 2.87 K, and the temperature uniformity of heat sources is improved. Then, the suitable operating mass flow rate interval can be extended to 3.63 times by optimizing the flow direction. The investigation on direct cooling obtained the optimal mass flow rate interval and the temperature uniformity for different heat source arrangements and hotspot heat source positions, which can be optimized by counter-flow distribution.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"61 ","pages":"Article 103546"},"PeriodicalIF":5.1000,"publicationDate":"2025-03-26","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/S2451904925003361","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

Challenges for controlling heat dissipation and temperature uniformity are presented by variations of heat source conditions in the power battery thermal management system. The efficiency of cooling systems can be enhanced by investigating the impact of heat source side variations on direct cooling performance for configurations with multi-point discrete heat sources. This study examines the effects of baseline heat sources arrangement, hotspot heat sources location and flow direction configuration on the direct cooling effect. The findings reveal that the influence of heat source arrangement on the direct cooling effect is similar under the same total heat generation, while the overall suitable operating mass flow rate interval range is lengthened with the increment of total heat generation. Furthermore, as the hotspot heat sources from outlet to inlet, the suitable operating mass flow rate interval of system changes from 0.164–0.207 g·s⁻¹ to a broader range of 0.119–0.334 g·s⁻¹, with a maximum reduced working heat source temperature difference of 2.87 K, and the temperature uniformity of heat sources is improved. Then, the suitable operating mass flow rate interval can be extended to 3.63 times by optimizing the flow direction. The investigation on direct cooling obtained the optimal mass flow rate interval and the temperature uniformity for different heat source arrangements and hotspot heat source positions, which can be optimized by counter-flow distribution.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

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.