新型冷藏车冷藏厢温度场数值模拟研究  

Numerical simulation on temperature field in new refrigerated vehicle

作　　者：张玉林 王漫漫 李任强 柏龙[2] 苟庆永 Zhang Yulin;Wang Manman;Li Renqiang;Bai Long;Gou Qingyong(College of Electrical Engineering and Intelligent Manufacturing,Chongqing Metropolitan College of Science and Technology,Chongqing 402167,China;College of Mechanical and Vehicle Engineering,Chongqing University,Chongqing 400044,China;Sichuan Cool Tech Refrigeration Technology Co.Ltd.,Guang'an 638500,China)

机构地区：[1]重庆城市科技学院电气工程与智能制造学院,重庆402167 [2]重庆大学机械与运载工程学院,重庆400044 [3]四川酷泰克制冷科技有限公司,广安638500

出　　处：《低温与超导》2025年第1期79-86,共8页Cryogenics and Superconductivity

基　　金：国家自然科学基金(51975070);重庆市教委科学技术研究项目(KJZD-K202202502);广安市科技创新项目(2023CG04)资助。

摘　　要：针对现有电动冷藏车依赖动力电池供压缩机驱动影响续航里程,或在运输途中缺电或机械故障导致保温失效造成货品损失的问题,开发设计了一种新型蓄冷式冷藏车,为得到该车冷藏厢蓄冷恒温工作机制,利用CFD软件,对插电制冷阶段冷藏厢内温度变化进行数值模拟。在外界温度为30℃,冷藏厢体积分别为6 m^(3)、10 m^(3)、15 m^(3)、20 m^(3)条件下,对冷藏厢内空气流场及温度场模拟结果进行分析,得到不同体积冷藏厢内的温度场分布规律及达到0℃所需时间。结果表明:冷藏厢体积对蓄冷箱降温时间影响不明显,蓄冷箱从初始温度30℃冷却至0℃所需的时间分别为约122 s、130 s、134 s和135 s。但对冷藏厢内温度分布和降温速度有显著影响,且降温耗时增加,冷藏厢内温度达到0℃所需时间分别约6762 s、8940 s、17384 s和21223 s。To extend the driving range of refrigerated trucks with refrigeration systems relied on power batteries and avoid potential cargo loss due to power outages or mechanical failures during transportation,a novel refrigerated truck was developed.To understand the isothermal working mechanism of the refrigerated compartment in this vehicle,CFD was used to numerically simulate the temperature changes within the compartment during the plug-in refrigeration phase.Under ambient temperatures of 30℃and compartment volumes of 6 m^(3),10 m^(3),15 m^(3),and 20 m^(3),respectively,the simulation results for the air flow field and temperature field within the compartment were analyzed to determine the temperature distribution patterns and the time required to reach 0℃for different compartment volumes.The results indicate that the compartment volume has an insignificant effect on the cooling time of the cold storage unit.The time required for the cold storage unit to cool from an initial temperature of 30℃to 0℃is approximately 122 s,130 s,134 s,and 135 s,respectively.However,the compartment volume significantly impacts the temperature distribution and cooling rate within the compartment.The time required for the compartment to reach 0℃increases significantly with increasing compartment volume,taking approximately 6762 s,8940 s,17384 s,and 21223 s,respectively.

关 键 词：新型冷藏车 冷藏厢 温度场 数值模拟 

分 类 号：TS205.7[轻工技术与工程—食品科学]