中国电机工程学报2025，Vol.45Issue(12)：4780-4790,中插21,12.DOI:10.13334/j.0258-8013.pcsee.232735
管壳式相变储热器场协同效应及影响因素研究
Research on the Synergistic Effect of Shell-and-tube Phase Change Storage Heaters Field and Influencing Factors
摘要
Abstract
This paper focuses on a multi-tube shell-and-tube heat storage unit and analyzes the flow characteristics and heat transfer properties of phase change materials based on the synergy principle of convective heat transfer fields.By examining the distribution of solid-liquid interfaces and vorticity during the melting process within the phase change field,the study clarifies the flow characteristics and heat transfer properties of phase change materials.It also explores the effects of storage unit specifications,rotational angle,and heat source temperature on the synergy mechanism.The results show that the synergy effect within the heat storage unit changes dynamically throughout the heat transfer process.Monitoring the flow field reveals that the average synergy angles at a1,a2,and a3 are 17.6°,40.1°,and 78.1°,respectively.The synergy between the temperature and velocity fields is optimal in the upper part of the storage unit.Under the same heat transfer perimeter,the synergy between the ϕ6 mm heat source tubes is the strongest,resulting in a melting time of 3 900 s.The heat storage unit performs best in terms of synergy at a rotational angle of 90° and a heat source temperature of 90℃,achieving the fastest melting rate.The rotational angle prompts movement of the synergy angle interface,and smaller synergy regions of the heat storage unit under a 90° rotational angle are more distributed in the melting blind zone.Increasing the heat source temperature promotes synergy between the velocity and temperature fields during the mid-melting phase.关键词
管壳式/相变储热/熔化特性/场协同效应/影响因素Key words
shell and tube/phase change heat storage/melting characteristics/field synergistic effects/influencing factors分类
能源科技引用本文复制引用
刘云龙,龙威,别玉,林婷婷,徐稚博..管壳式相变储热器场协同效应及影响因素研究[J].中国电机工程学报,2025,45(12):4780-4790,中插21,12.基金项目
云南省基础研究计划项目(202301AS07) （202301AS07）
云南省"万人计划/青年拔尖人才"项目(YNWR-QNBJ-2018-162). Basic Research Project of Yunnan Province(202301AS07) （YNWR-QNBJ-2018-162）
Yunnan Province Ten-thousand Talents Program/Youth Top-notch Talent Program(YNWR-QNBJ-2018-162). （YNWR-QNBJ-2018-162）
