海南师范大学学报（自然科学版）2018，Vol.31Issue(3)：237-249,13.DOI:10.12051/j.issn.1674--4942.2018.03.001
党参根气体射流冲击干燥特性和干燥模型
Drying Characteristics and Model of Codonopsis pilosula Roots Dried in An Air-impingement Jet Dryer
摘要
Abstract
Drying characteristics of Codonopsis pilosula roots were investigated in an air-impingement jet dryer under different drying temperatures (40,50,60,70 and 80 ℃),distance from jet nozzle to material tray (DJNMT) (5,10 and15cm),and air velocities (8,11 and 14 m/s).Results indicated that the drying rate (DR) and moisture effective diffusion coefficient (Deff) were mainly influenced by the drying temperature of air,followed by DJNMT and air velocity.Deff was in the range of 1.5904 × 10-10 to 3.0684 × 10-10 m2· s-1 and the drying activation energy (Ea) was 15.86 kJ ·/mol-1.The Modified Page model can reflect the dynamics of Codonopsis pilosula roots air impingement drying.The equation of moisture ratio and time and drying process parameters can effectively predict the moisture change of Codonopsis pilosula roots air impingement drying.关键词
党参根/气体射流冲击/干燥特性/干燥动力学模型/响应面Key words
Codonopsis pilosula roots/air-impingement jet/drying characteristics/drying kinetics model/RSM分类
医药卫生引用本文复制引用
曾祥媛,张建,赵武奇,卢丹,吴妮,张清安..党参根气体射流冲击干燥特性和干燥模型[J].海南师范大学学报（自然科学版）,2018,31(3):237-249,13.基金项目
西安市农业科技创新计划项目[2017050NC/NY009(3)] （3）
