PCM蓄冷式冷藏车冷量显示模型研究  

PCM Cold Storage Refrigerated Truck Cold Capacity Display Model

作　　者：童山虎 姚超阳 王达[1] 田响亮 马燕平 贾连文[1] 杨相政[1] TONG Shanhu;YAO Chaoyang;WANG Da;TIAN Xiangliang;MA Yanping;JIA Lianwen;YANG Xiangzheng(Ji’nan Fruit Research Institute,All China Federation of Supply and Marketing Cooperatives,Ji’nan 250220,China;CRRC Shijiazhuang Co.,Ltd.,Shijiazhuang 051430,China;School of Mechanical Engineering,Tianjin University of Commerce,Tianjin 300134,China)

机构地区：[1]中华全国供销合作总社济南果品研究所,济南250220 [2]中车石家庄车辆有限公司,石家庄051430 [3]天津商业大学机械工程学院,天津300134

出　　处：《农业机械学报》2024年第S2期411-418,共8页Transactions of the Chinese Society for Agricultural Machinery

基　　金：山东省科技型中小企业创新能力提升工程项目(2023TSGC0563);山东省重点研发计划项目(2022TZXD0022)

摘　　要：为了提高冷链装备的精准调控性能,建立了PCM (Phase change material)蓄冷式冷藏车实验台,研究了蓄冷板数量、开门次数、环境温度、货物量及行驶速度等因素对保冷性能的影响。实验结果表明:增加蓄冷材料、减少开门次数、降低环境温度和行驶速度,以及减少货物质量均会延长保冷时间。在上述研究因素中,行驶速度与货物质量对保冷时间的影响小于5%,为非主要因素。蓄冷材料质量从120 kg增加至220 kg时,保冷时间延长715 min;环境温度升高14℃时,保冷时间缩短135 min;开门1至4次会缩短保冷时间6.39%至50%。为了更好地量化多因素对保冷时间的影响,基于理论推导构建了相对误差小于9%的高精度冷量算法模型,并依托该模型开发了剩余冷量和保冷时间显示模块,为制定蓄冷式冷藏车控制策略提供了理论依据。To improve the precise regulation of cold chain equipments,an experimental platform for phase change material(PCM)cold storage refrigerated trucks was established to investigate the effects of factors such as the number of cold storage plates,door opening frequency,ambient temperature,cargo load,and driving speed on the cold storage time.The experimental results showed that increasing PCM,reducing the door opening frequency,lowering the ambient temperature and driving speed,and reducing the cargo load all contributed to prolonging the cold storage time.Among these factors,the effect of the driving speed and the cargo load on the cold storage time was less than 5%impact on the cooling time,making them minor factors.When the mass of PCM was increased from 120 kg to 220 kg,the cold storage time was extended by 715 min;when the ambient temperature was increased by 14℃,the cold storage time was reduced by 135 min;opening the door 1 to 4 times shortened the cold storage time by 6.39%to 50%.To better quantify the influence of multiple factors on the cold storage time,a high-precision cooling capacity algorithm model with a relative error of less than 9%was developed based on theoretical derivation.Furthermore,a display module for residual cooling capacity and the cold storage time was developed by using this model,providing theoretical support for the formulation of control strategies for PCM cold storage refrigerated trucks.

关 键 词：冷藏车 蓄冷板 保冷时间 冷量显示模型 

分 类 号：TB658[一般工业技术—制冷工程]