特种保温集装箱热负荷快速估算方法  

Rapid estimation method for thermal load of the special insulated container

作　　者：刘成勇 牛天宏[1] 范虎成 LIU Chengyong;NIU Tianhong;FAN Hucheng(Northwest Institute of Mechanical and Electrical Engineering,Xianyang 712099,China)

机构地区：[1]西北机电工程研究所,陕西咸阳712099

出　　处：《兵器装备工程学报》2024年第S2期111-117,共7页Journal of Ordnance Equipment Engineering

摘　　要：为了准确计算特高温地区集装箱内热负荷,建立了特种保温集装箱的一维稳态传热模型,分别对集装箱顶部、侧壁及底部换热过程进行分析和热负荷理论计算,对集装箱保温层结构进行简化,采用Matlab编程进行特种保温集装箱热负荷快速估算。采用这种方法计算得到某特种保温集装箱在特高温地区的热负荷为7564.4 W。分别对不同保温层结构的集装箱热负荷以及特种集装箱在不同地区使用的热负荷进行估算,证明了该热负荷估算方法的通用性。通过分析影响特种集装箱热负荷大小的因素,给出了减少集装箱热负荷的主要措施为在集装箱底部填充聚氨酯隔热材料和集装箱外表面采取反射率高的材料或者喷涂反光涂层,可为减少特种保温集装箱热负荷和空调制冷功率提供参考。In order to accurately calculate the thermal load inside the container in ultra high temperature areas,a one-dimensional steady-state heat transfer model for special insulated containers was established,the heat transfer processes at the top,side walls,and bottom of the container were analyzed and the heat load was theoretically calculated,the structure of the container insulation layer was simplified,and MATLAB programming was used to quickly estimate the thermal load of the special insulated container.Using this method,the thermal load of the special insulated container ultra high temperature areas was calculated to be 7564.4 W.Estimating the thermal load of containers with different insulation layer structures and the thermal load of special containers used in different regions respectively proves the universality of this thermal load estimation method.By analyzing the factors that affect the thermal load of special containers,the main measures to reduce the thermal load of containers are proposed to fill the bottom of the container with polyurethane insulation material and adopt high reflectivity materials or spray reflective coatings on the outer surface of the container,this can provide reference for reducing the thermal load of special insulated containers and air conditioning cooling power.

关 键 词：保温集装箱 热负荷计算 特高温地区 传热模型 空调功率匹配 

分 类 号：U169.41[交通运输工程] TK124[动力工程及工程热物理—工程热物理]