保温集装箱传热过程数值模拟及试验测试  

Numerical simulation and experimental test of heat transfer process of thermal insulation container

作　　者：魏超[1] 庄春龙[1] 邓安仲[2] 赵少卿 

机构地区：[1]后勤工程学院国防建筑规划与环境工程系,重庆401311 [2]后勤工程学院军事工程管理系,重庆401311

出　　处：《自动化与仪器仪表》2015年第12期209-212,共4页Automation & Instrumentation

基　　金：重庆市高校优秀成果转化资助项目:新型储能保温系统集装箱产业化及在渝新欧铁路物流应用研究(KJZH1411)

摘　　要：针对"渝新欧"保温集装箱冬季运输存在箱内温度调控问题,提出了"整体箱保温+相变蓄热控温"的设计方案,基于焓法建立了集装箱一维非稳态数值传热模型,采用Crank-Nicolson差分法对模型中导热微分方程进行离散求解,得到了不同相变材料用量下箱内空气温度变化曲线,找到了适合该箱体的最佳材料用量为2400 kg。通过集装箱360小时低温试验测试,试验数据与模拟结果吻合较好,偏差在3℃以内。建立的数值传热模型对保温集装箱传热过程的研究有借鉴意义,并为合理选取相变材料用量提供了理论指导。The design scheme of"Integrated thermal insulation+PCM thermal storage"was proposed to solve the temperature control problem of"Yuxinou"heat preservation container transportation in winter. Based on the enthalpy method, the one-dimen-sional unsteady numerical heat transfer model was developed for container. The differential equation of heat conduction in the model was solved by the Crank-Nicolson difference scheme. The container internal air temperature change curves of different amount of phase change materials were obtained, and the best amount for this container is 2400kg. Through 360 hours of low temperature test, the experimental data accord well with those from numerical model and the deviation is within 3℃. The established numerical heat transfer model has significance in research in the heat transfer process of container, and provides theoretical guidance for the selec-tion of phase change material consumption.

关 键 词：焓法 保温集装箱 传热模型 相变材料 试验 

分 类 号：U169.41[交通运输工程]