Correlation of volume fractal dimension inside matrix of plant materials and re-rehydration hydration behavior

摘要：

This paper studied the relationship between matrix microstructure of plant materials and re-hydration behavior using Astragalus and Chinese Angelica root slices as examples.Based on the measured results by using automatic mercury injection apparatus (at larger scale ≥100nm), the volume fractal dimensions (DV) were estimated to characterize the pore size distribution inside matrix of samples dried by microwave 200W and conventional hot air 60 ℃ .Our results demonstrate that the values of DV are correlated well with re-hydration ratio, and the volume fractal dimension (DV) could give a better understanding the mass transfer behavior inside matrix of plant porous materials.

关键词： Porous media Plant materials re-hydration Pore size distribution Fractal dimension Mass transfer

作者: Yang Junhong Zhang Heng Di Qianqian Yang Shaohui

作者单位: School of Mechanical Engineering,Tianjin University92 Weijin Road,Nankai Distrist,Tianjin,300072,Chi School of Mechanical Engineering,Tianjin University of CommerceJinba Road,Beichen Distrist,Tianjin,3 College of Agricultural and Biological Engineering,Tianjin University 92 Weijin Road,Nankai Distrist

会议类型: 国际会议

会议名称: The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)

会议地点: 天津

会议语种:英文

页码: 1-10

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）