翅片增强空气式相变储能装置蓄热性能模拟研究  

Simulation of Enhancing Heat Storage Performance of Air-type Phase Change Energy Storage Device with Fins

作　　者：冯国会[1] 马天娇 赫娜[1] FENG Guohui;MA Tianjiao;HE Na(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang,China,110168)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2024年第3期478-485,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家重点研发计划课题(2022YFC3802404);辽宁省教育厅科研项目(LJKZ0577);沈阳市科技计划项目(21-108-9-03)。

摘　　要：目的为解决空气式相变储能装置中存在的蓄热时间过长等问题,探究该装置蓄热性能的优化措施。方法利用FLUENT仿真软件对添加不同体积分数、厚度和高度翅片空气式相变储能装置的温度场进行数值模拟,并对模拟结果进行比较分析。结果翅片体积分数为15%,厚度为8 mm,高度为14 mm时,空气式相变储能装置蓄热时间缩短最显著,可缩短46.97%。结论翅片的添加对相变储能单元的熔化具有促进作用,通过优化翅片体积分数、厚度和高度参数,可以提高空气式相变储能装置的蓄热性能。In order to solve the problems of long heat storage time for air-type phase change energy storage devices,optimization measures for the heat storage performance of the devices were studied.The temperature field of air-type phase change energy storage devices with fins of different volume fractions,thicknesses and heights was simulated by fluid dynamics simulation software FLUENT.The results showed that when the volume fraction of the fins is 15%,the thickness of the fins is 8 mm,and the height of the fins is 14 mm,the shortened heat storage time of the air-type phase change energy storage device was most,which can be shortened by 46.97%.This showed that the addition of fins promotes the melting of phase change energy storage units.By optimizing fin volume fraction,thickness,and height parameters,the heat storage performance of air-type phase change energy storage devices can be improved.

关 键 词：相变材料 蓄热工况 传热性能提升 翅片 参数优化 

分 类 号：TU8331[建筑科学—供热、供燃气、通风及空调工程] TK02[动力工程及工程热物理]