Temperature digital twins model for blueberry pre-cooling based on micro-cluster method  

作　　者：Da Wang Xiangzheng Yang Di Wu Lianwen Jia Wenwen Wei 王达;杨相政;吴迪;贾连文;魏雯雯(Jinan Fruit Research Institute of All-China Federation of Supply and Marketing Cooperatives,Jinan,China;College of Agriculture and Biotechnology,Zhejiang University,Hangzhou,China)

机构地区：[1]Jinan Fruit Research Institute of All-China Federation of Supply and Marketing Cooperatives,Jinan,China [2]College of Agriculture and Biotechnology,Zhejiang University,Hangzhou,China

出　　处：《Food Quality and Safety》2024年第2期427-439,共13页食品品质与安全研究（英文版）

基　　金：supported by the Natural Science Foundation of Shandong Province,China(No.ZR2021QC186);the China Postdoctoral Science Foundation(No.2023M743923).

摘　　要：Objectives:In order to improve the prediction accuracy of forced-air pre-cooling for blueberries,a mathematical model of forced-air pre-cooling for blueberries based on the micro-cluster method was established.Materials and Methods:In order to determine the optimal micro-cluster model parameters suitable for forced air pre-cooling of blueberries,three factors controlling the micro-cluster geometry parameters were evaluated by 7/8 pre-cooling time,uniformity,and convective heat transfer coeffcient.Results:It was found that the optimal values of the number of micro-clusters(n3),the distance between individual units within a micro-cluster(a)and the distance between micro-clusters(c)were 3,0.75,and 0.2,respectively.Under these optimal values,the temperature error of the micro-cluster method remained below 1°C,achieving highly accurate temperature predictions during the blueberry pre-cooling process.The results showed that the micro-cluster method effectively solved the challenges of complex confguration,long simulation time,and low accuracy compared to the porous medium and equivalent sphere methods.Conclusion:Based on the above analysis,it can be concluded that the micro-cluster method provids a theoretical basis for optimizing forced-air pre-cooling processes and making informed control decisions.

关 键 词：BLUEBERRY micro-cluster method forced-air pre-cooling temperature digital twins 

分 类 号：S382[农业科学—农艺学]