西安工程大学学报2025，Vol.39Issue(3)：138-146,9.DOI:10.13338/j.issn.1674-649x.2025.03.016
油菜籽低温干燥模拟及响应面参数优化
Simulation of low-temperature drying of rapeseed and optimization of response surface parameters
摘要
Abstract
At present,the temperature and moisture content changes in the process of low-temperature cyclic drying of rapeseed are complicated,resulting in the problem of uneven heating of part of rapeseed,large gap in moisture content and poor quality after drying.In view of this,a non-thermal equilibrium heat and mass transfer mathematical model for rapeseed was established,and the low-temperature drying process of rapeseed dryer was simulated by Fluent,and response surface analysis was used to design the simulation test,and the optimized pipeline structure and drying parameters were designed to improve the drying effect.The results show that the delta duct reduces the wind speed inhomogeneity coefficient from 23.82% to 11.99% and increases the average velocity from 0.078 m·s-1 to 0.101 m·s-1 compared to the ridge duct under the condition of consistent fan flow.The extreme difference of pipeline"cross"staggered arrangement is 3.28℃,the standard deviation is 0.527 9,and the temperature unevenness coefficient is 1.80%,basically realizing the uniform heating of rapeseed.In the pre-low temperature dr-ying stage of the rapeseed dryer,the hot air velocity of 6.279 m·s-1,hot air temperature of 58.511℃ and the triangular duct with a top angle of 88.503° are more favorable for the warming and uniformity of the rapeseed layer.关键词
低温干燥/油菜籽/数值模拟/Fluent/响应面分析Key words
low-temperature drying/rapeseed/numerical simulation/Fluent/response surface a-nalysis(RSA)分类
农业工程引用本文复制引用
胡久林,何玉敏,房启航,史乾军,史德才,董玉德..油菜籽低温干燥模拟及响应面参数优化[J].西安工程大学学报,2025,39(3):138-146,9.基金项目
安徽省科技特派员农业物质技术装备揭榜挂帅项目(2022296906020012) （2022296906020012）
