浅圆仓降温通风数值优化研究  

Research on numerical optimization of the cooling and ventilation of squat silo

作　　者：杨开敏[1] 刘家琦 刘济洲 王柯 王远成[1] YANG Kaimin;LIU Jiaqi;LIU Jizhou;WANG Ke;WANG Yuancheng(School of Thermal Engineering,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学热能工程学院,山东济南250101

出　　处：《山东建筑大学学报》2023年第1期32-39,共8页Journal of Shandong Jianzhu University

基　　金：山东省高等学校科技计划(J16LG07);江苏省宿州市科技计划项目。

摘　　要：研究实仓通风更优的通风方案,可为粮食的安全储藏和通风设计提供理论依据。文章利用Fortran语言编写程序,模拟研究不同仓型在不同通风方案下的4种储粮工况,对比分析不同工况下实仓内部粮食温度、含水率的变化以及害虫的分布情况。结果表明:在连续通风工况下,锥形底仓降温保水效果最佳;锥形底仓对谷蠹生长繁殖的抑制效果优于平底仓;连续通风方案的单位能耗为0.045 kW·h/(t·℃),高于间歇式通风方案的0.021 kW·h/(t·℃),但连续通风方案的降温保水效果、对谷蠹繁殖的抑制效果均优于间歇式通风方案。In order to provide theoretical basis for safe storage and ventilation design of grain,a better ventilation scheme is discussed.Fortran language was used to write a program to simulate and study four grain storage conditions under different ventilation schemes in different silos,and to compare and analyze the changes of grain temperature and moisture content and the distribution of pests in squat silos under different conditions.The results show that the conical bottom silo has the best cooling and water retention effect under continuous ventilation condition.Under continuous ventilation condition the conical bottom silo has better inhibitory effect on the growth and reproduction of pests than that of flat bottom silo.The unit energy consumption of continuous ventilation scheme is 0.045 kW·h/(t·℃),which is higher than 0.021 kW·h/(t·℃)of intermittent ventilation scheme.However,the continuous ventilation scheme is better than the intermittent ventilation scheme in reducing temperature and keeping water and inhibiting the growth of pests.

关 键 词：浅圆仓 降温通风 温度 含水率 害虫分布 

分 类 号：S379[农业科学—农产品加工]