[1]王双凤,王远成,郭振宇,等.就仓干燥粮食温度和水分的实验模拟对比[J].山东建筑大学学报,2012,(03):340-345.
 WANG Shuang-feng,WANG Yuan-cheng,GUO Zhen-yu,et al.Comparison in grain temperature and moisture content in bin grain drying by experiments and numerical simulation[J].Journal of Shandong jianzhu university,2012,(03):340-345.
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就仓干燥粮食温度和水分的实验模拟对比()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2012年03期
页码:
340-345
栏目:
工程实践
出版日期:
2012-06-15

文章信息/Info

Title:
Comparison in grain temperature and moisture content in bin grain drying by experiments and numerical simulation
作者:
王双凤1王远成23郭振宇1白忠权1
1.山东建筑大学 热能工程学院,山东 济南 250101;2.山东建筑大学 山东省建筑节能技术重点实验室,山东 济南 250101;3.山东建筑大学 可再生能源建筑利用技术省部共建教育部重点实验室,山东 济南 250101
Author(s):
WANG Shuang-feng1 WANG Yuan-cheng23 GUO Zhen-yu1 et al.
1.School of Thermal Energy Engineering, Shandong Jianzhu University, Jinan 250101, China; 2. Shandong Key Laboratory of Building Energy-Saving Technologies, Shandong Jianzhu University, Jinan 250101, China; 3. Key Laboratory of Renewable Energy Utilization Technology in Building of National Education Ministry, Shandong Jianzhu University, Jinan 250101, China
关键词:
粮堆热湿传递数值模拟瞬态边界
Keywords:
bulk grains heat and moisture transfer numerical simulation transient boundary condition
文献标志码:
A
摘要:
粮堆的通风干燥是粮食干燥的主要形式,粮食的干燥过程实质上是多孔介质热湿耦合传递的过程。本文借助实验研究和数值模拟的方法,针对利用太阳能/热泵联合就仓干燥粮食的热风随时间变化的情况,采用综合温度和空气绝对湿度作为瞬态边界条件,对干燥过程中粮食内部温度和水分的变化进行了模拟研究。模拟结果表明干燥150h后小麦水分达到安全水分13.6%(干基),而实验结果表明干燥135h后达到安全水分13.6%(干基),二者对比相差不大且模拟温度与试验温度吻合较好。
Abstract:
Ventilation drying of grain is the main form of grain drying, and grain drying process is actually heat and mass transfer in porous media. With the help of experimental method and numerical simulation method, according to the variable hot air when solar-assisted heat pump drying system is used to dry stored grain, the study set transient boundary conditions of outdoor integrated temperature, absolute humidity to simulate the changes of grain temperature and moisture content in the grain drying process. The simulation results show that the wheat reach safety moisture 13.6% (dry basis) after 150 hours’ drying with little difference between the experimental results, and that the simulation temperature agrees well with the experimental temperature.
更新日期/Last Update: 2012-07-17