期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：1
页码：264-271
出版社：University of Mohammed Premier Oujda
摘要：Artemisia herba-alba is a characteristic plant of the steppes of the Middle East North Africa and Spain and has been used as a medicinal plant since ancient time. In Morocco this plant is used in diabetes treatment. The solar drying is essential for preserving the agricultural products, so that it is necessary to know the process of drying and storage for Artemisia herba-alba. The drying behaviour of Artemisia herba-alba was investigated in the ranges of 28 to 39°C of ambient air temperature, 50 to 80°C of drying air temperature, 30 to 33.5%, of relative humidity and 0.056 m 3 s -1 of drying air flow rate. Ten statistical models were tested for fitting the experimental drying curves. The Midilli-Kuck model was found to be the most suitable for describing the drying curves of Artemisia herba-alba. The drying parameters in this model were quantified as a function of the drying air temperature.The range of variation of the effective moisture diffusivity is between 9.75 10 -12 and 6.27 10 -11 m 2 s - 1 . The activation energy was found to be 60.59 kJ mol -1 .
关键词：Activation Energy; Artemisia herba alba; Convective solar drying; Effective diffusivity.
