宏观封装相变蓄能装置动态传热过程预测方法研究  

Dynamic heat transfer process prediction method for macroscopic encapsulation phase change energy storage devices

作　　者：田绅 蔺雨辰 邵双全 田玲玲 刘夙珂 Tian Shen;Lin Yuchen;Shao Shuangquan;Tian Lingling;Liu Suke(Tianjin University of Commerce;Huazhong University of Science and Technology)

机构地区：[1]天津商业大学 [2]华中科技大学

出　　处：《制冷与空调》2024年第12期74-81,共8页Refrigeration and Air-Conditioning

基　　金：大学生创新训练计划项目(202410069150)。

摘　　要：宏观封装相变蓄能装置具有广泛的温度适用性和灵活的系统匹配性,对于冷/热能绿色转化与利用具有重要意义。本文基于瞬态能量守恒方程和相变材料体积变化率关联式,建立适用多种结构形式相变蓄能装置的动态解析模型框架。将该模型框架用于4种典型宏观封装形式相变蓄能装置传热过程的预测,结果表明:传热流体出口温度、平均传热速率和总传热量的预测误差分别为-11.57%~12.62%,-2.61%~6.89%和-3.21%~6.16%。模型框架对于简化装置动态传热过程求解,精准且快速预测装置传热性能具有应用价值。The macroscopic encapsulated phase change energy storage device has broad temperature applicability and flexible system compatibility,which is of great significance for the green conversion and utilization of cold/thermal energy.Based on the transient energy conservation equation and the correlation of the volume change rate of phase change materials,a dynamic analytical model framework is established which is applicable to various structural forms of phase change energy storage devices.The model framework is applied to predict the heat transfer processes of four typical structural forms of macroscopic encapsulation phase change energy storage devices,the results show that the prediction errors for the outlet temperature of the heat transfer fluid,the average heat transfer rate,and the total heat transfer capacity are -11.57% to 12.62%,-2.61% to 6.89%,and -3.21% to 6.16%,respectively.The model framework has application value for simplifying the solution of the dynamic heat transfer process of the device as well as for accurately and quickly predicting the heat transfer performance of the device.

关 键 词：相变蓄能 传热 结构形式 宏观封装 相变材料 预测 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TB34[动力工程及工程热物理—热能工程]