食品与机械2024，Vol.40Issue(10)：108-115,8.DOI:10.13652/j.spjx.1003.5788.2024.60069
基于COMSOL多物理场的多孔介质缓苏干燥模拟
Simulation of tempering drying of porous media based on COMSOL multi-physics field
摘要
Abstract
[Objective]To investigate the variation laws of temperature and humidity fields during the tempering process.[Methods]Using corn kernels and grain piles as porous media,perform multi-physics field coupling using the heat and moisture flow interface in the COMSOL Multiphysics heat transfer module.[Results]Five tempering and six drying processes reduced the relative humidity of corn kernels from 22.5%to 4.97%,and after two tempering and three drying processes,the average relative humidity of corn kernels decreased to 11%.The drying effect improved by 9.5%compared to no tempering drying.The same effect was obtained by the strategy of tempering at normal temperature with less drying time.[Conclusion]The tempering strategy effectively improves he drying rate by reducing the moisture gradient,shortening the overall hot air drying time.However,the drying and slow fermentation times are increased.The application of ambient temperature ventilation slow fermentation strategies in the air-drying chamber can further reduce the number and duration of slow fermentation sessions required in the later stages of drying.关键词
玉米干燥/多孔介质/缓苏/粮堆/多物理场/COMSOLKey words
corn drying/porous media/tempering/grain pile/multi-physics field/COMSOL引用本文复制引用
刘丁通,刘泽钰,刘绍东,冯太..基于COMSOL多物理场的多孔介质缓苏干燥模拟[J].食品与机械,2024,40(10):108-115,8.基金项目
山东省自然科学基金资助项目(编号:ZR2023ME186) （编号:ZR2023ME186）
济南市农业应用技术创新项目(编号:CX202203) （编号:CX202203）
