圆柱形相变单元的蓄热装置蓄热特性分析  

Analysis of Heat Storage Characteristics of Heat Storage Device of Cylindrical Phase Change Unit

作　　者：方桂花[1] 连小刚 张振华 谭心[1] FANG Gui-hua;LIAN Xiao-gang;ZHANG Zhen-hua;TAN Xin(Inner Mongolia University of Science and Technology,School of Mechanical Engineering,Inner Mongolia Baotou 014010,China)

机构地区：[1]内蒙古科技大学机械工程学院,内蒙古包头014010

出　　处：《机械设计与制造》2023年第5期64-68,共5页Machinery Design & Manufacture

基　　金：内蒙古自治区科技创新引导奖励资金项目(KCBJ2018031);内蒙古自治区科技创新引导奖励资金项目(2017CXYD-2)。

摘　　要：设计了基于圆柱形相变蓄热单元的相变蓄热装置,通过循环实验对蓄热装置的运行特性进行分析,研究了装置的蓄热影响因素。研究结果表明;在等质量相变材料(Phase Change Material,PCM)时,相变单元数量对装置蓄热速率的影响较大;蓄热单元布置间距对装置蓄热速率的影响较小;当增大换热流体(Heat Transfer Fluid,HTF)的流量时,装置总蓄热时间分别缩短了14.5%和29%;提高换热流体入口温度时,不仅增加了蓄热装置的总蓄热量,并且总体蓄热时间分别缩短了10.6%和16.5%。The article designs a phase change heat storage device based on a cylindrical phase change heat storage unit,analyzes the operating characteristics of the heat storage device through cyclic experiments,and studies the factors affecting the heat storage of the device.The research results show that when the phase change material(PCM)is of equal mass,the number of phase change units has a greater influence on the heat storage rate of the device;the arrangement distance of the heat storage unit has a small effect on the heat storage rate of the device;When the inlet flow rate of the heat transfer fluid(HTF)is large,the total heat storage time is shortened by 14.5%and 29%,respectively;when the inlet temperature of the heat transfer fluid is increased,not only the total heat storage of the heat storage device is increased,but also The heat storage time was shortened by 10.6%and 16.5%respectively.

关 键 词：蓄热 相变蓄热单元 蓄热装置 强化换热 相变材料 

分 类 号：TH16[机械工程—机械制造及自动化] TK114[动力工程及工程热物理—热能工程]