山东建筑大学学报2026，Vol.41Issue(3)：47-56,10.DOI:10.12077/sdjz.2026.03.006
不同通风方式对就仓干燥效果的数值模拟研究
Numerical simulation of ventilation strategies on in-bin grain drying performance
摘要
Abstract
Current in-bin grain drying techniques still exhibit limitations in airflow distribution,drying rate,and energy consumption control.Investigating the feasibility of cross-flow ventilation in in-bin drying can provide a more efficient design pathway for process equipment in vertical silos.Based on porous media fluid dynamics and heat-mass transfer theory,this study optimized hopper-bottom vertical silos designed for vertical ventilation and cross-flow ventilation by reasonably adjusting airduct layouts.Numerical simulations were performed to compare the operational performance of the two drying systems,with particular focus on airflow distribution inside the silo,grain bulk temperature,grain bulk moisture content,drying rate,drying uniformity,and energy consumption and drying cost during the drying process.The results showed that the cross-flow ventilation system achieved an energy consumption of 2 328 kWh,reduced the drying cost to 21.4 CNY/t,and attained a specific moisture extraction rate(SMER)of 3.3 kg/kWh.Compared with the vertical ventilation system,the cross-flow ventilation process outperformed it in airflow distribution uniformity,drying rate,and energy consumption,and was therefore identified as the optimal drying process configuration.关键词
垂直通风/横流通风/热湿传递/能耗/数值模拟Key words
vertical ventilation/cross-flow ventilation/heat and moisture transfer/energy consumption/numerical simulation分类
农业科技引用本文复制引用
杨开敏,崔雨,董晓倩,张楠,王远成,杨雨青..不同通风方式对就仓干燥效果的数值模拟研究[J].山东建筑大学学报,2026,41(3):47-56,10.基金项目
山东省高等学校"青创人才引育计划" （）
济南市领军人才工作室基金项目(202333050) （202333050）
国家重点研发计划项目(2024YFE0106800) （2024YFE0106800）
