船舶冷藏集装箱内部温度分布的模拟与优化  

Simulation of Temperature Distribution Inside Marine Reefer Containers and Optimization Methods

作　　者：张婷婷[1] 阚安康[1] 曹丹[1] 娄宗瑞[1] 

机构地区：[1]上海海事大学商船学院,上海201306

出　　处：《制冷》2013年第4期20-25,共6页Refrigeration

基　　金：上海海事大学科技基金项目(20120091)

摘　　要：文章采用数值模拟的方法,采用CFD对20英尺冷藏集装箱进行建模和数值分析,采用旁通调节、两端回风和合理利用箱内温度梯度方式,通过仿真对冷藏集装箱内部温度分布进行优化分析,得到旁通调节在不增加机组负荷的情况下,能够增大送风速度,使箱内温度分布更合理均匀;下送风两端回风的方式可以明显改善箱内温度的分布,整体温度差能够控制在1.5℃以内,提高回风温度并能提高机组效率;通过分析模拟结果得到冷藏集装箱不同距离方向上的平均温度变化情况,根据冷藏温度和温度波动可以划分箱内区域,以达到合理利用冷藏集装箱内部温度和空间的目的。In this paper, through numerical analysis methods, CFD modeling and numerical analysis of the 20 - foot refrigerated containers, by using the bypass regulation, both ends of the return air and the rational use of inside temperature gradient, optimize the analysis the internal temperature of the refrigerated container distribution through simulation, we can conclude that the bypass regulation without increasing the unit load the case, but can get the greatest air velocity, so that the inside temperature distribution is more uniform rational; Downflow manner at both ends of the return air can be significantly improved temperature distribution, the overall temperature difference can be controlled no more than 1.5K, also can improve the efficiency of the unit; Analysis of simulation the relationship between the average temperature changes and the direction of the refrigerated container, can be divided according to the refrigeration temperatures and temperature fluctuations inside the area, in order to achieve the purpose of ration- al use of the internal temperature of refrigerated containers and space.

关 键 词：冷藏集装箱 温度分布 CFD 数值模拟 优化分析 

分 类 号：U693[交通运输工程—港口、海岸及近海工程] TB658[交通运输工程—船舶与海洋工程]