机械式冷藏集装箱内温湿度场的数值模拟及其试验研究  

Numerical Simulation and Experiment of Temperature and Humidity Field inside Mechanical Refrigerated Containers

作　　者：刘亚姣[1] 杨小凤[1] 庄春龙[1] 邓安仲[2] 郭晏京 代俊杰[1] 

机构地区：[1]中国人民解放军后勤工程学院国防建筑规划与环境工程系,重庆401311 [2]中国人民解放军后勤工程学院军事工程管理系,重庆401311 [3]中国人民解放军总参工程兵第四设计研究院,北京100850

出　　处：《保鲜与加工》2016年第1期81-86,共6页Storage and Process

基　　金：重庆高校优秀成果转化资助项目(KJZH14111)

摘　　要：以配置了上送风管的机械式冷藏集装箱为研究对象,采用番茄为试验物料,建立三维k-ε紊流计算模型,结合多孔介质模型及组分输运模型,采用非稳态求解方法,计算装载货物情况下集装箱内部的动态温湿度场;同时对该模型相应点的温湿度变化过程进行试验验证研究。结果表明,果蔬在冷藏集装箱运输过程中,自身的呼吸作用及通过箱壁从外界传入的热量对温度场的影响较大,造成货物内部与靠壁面处的温度较高;由于货物区温度较高,且热湿空气被水分含量较低的冷空气取代,致使在同等水蒸气含量下货物区的相对湿度较周围空气区低。模拟计算结果与试验验证结果能较好地吻合,建立的模拟模型可为果蔬冷藏集装箱内温湿度的监测与控制提供技术依据。This paper takes the mechanical refrigerated container equipped with the beam duct as the research object, uses tomato as experiment material, constructs a three dimensional turbulent flow calculation model combined with the porous medium model and the component transport model, uses the unsteady method, and finally calculates the dynamic temperature and humidity field inside the container filled with goods. At the same time, it carries on the experimental study on the process of certain points＇ temperature and humidity change. The results show that, the temperature inside the goods and near the wall is higher because of the respiration heat of goods and the heat transferred from outside. Because the temperature inside the goods is higher and the air inside the goods is replaced by the air with low moisture content, the relative humidity inside the goods is lower in the same water vapor. There is good consistency between the experimental results and simulation results, and the simulation results of temperature andhumidity fields inside the refrigerated container can provide technical supports for monitoring and controlling the environment inside the container.

关 键 词：机械式冷藏集装箱 FLUENT模拟 多孔介质 组分输运 温湿度场 

分 类 号：U169.42[交通运输工程]