农机使用与维修Issue(9)：1-7,7.DOI:10.14031/j.cnki.njwx.2026.09.001
大麦苗干燥特性与力学性能试验
Experimental study on drying characteristics and mechanical properties of barley seedlings
摘要
Abstract
In order to solve the problems of short preservation period and easy corruption of fresh barley seedlings after harvest,and realize large-scale processing and utilization,the effects of drying parameters(temperature,wind speed,initial moisture content)on the drying characteristics and the changes of mechanical properties at different temperatures were investigated by thin-layer hot air drying test.The results show that the three factors significantly affect the drying process,and the temperature is the most critical.As the temperature increased from 35 ℃ to 55 ℃,the effective mois-ture diffusion coefficient increased from 7.64 × 10-11 m2/s to 2.56 × 10-10 m2/s,and the drying activation energy was 66.097 1 kJ/mol.The wind speed of 1.6 m/s can shorten the drying time and accelerate the evaporation of water.The initial water content is high,the early dehydration is fast but the total time is prolonged.In terms of mechanical proper-ties,the toughness of barley seedlings at 35℃ was better,the strength at 45 ℃ was improved,and the brittleness at 55 ℃ was obvious.In summary,45 ℃ and 1.2 m/s are the optimal drying conditions,which can provide theoretical and technical reference for related processing and product development.关键词
大麦苗/热风干燥/干燥特性/力学性能Key words
barley seedlings/hot air drying/drying characteristics/mechanical properties分类
农业科技引用本文复制引用
于成慧,陶桂香,伞宇航,王至郅..大麦苗干燥特性与力学性能试验[J].农机使用与维修,2026,(9):1-7,7.基金项目
黑龙江省重点研发计划项目(2022ZX05B05-01) （2022ZX05B05-01）
