Experimental Study on Eggplant Drying by an Indirect Solar Dryer and Open Sun Drying
Publish place: Iranica Journal of Energy and Environment، Vol: 3، Issue: 4
Publish Year: 1391
نوع سند: مقاله ژورنالی
زبان: English
View: 1,105
This Paper With 7 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJEE-3-4_009
تاریخ نمایه سازی: 1 اردیبهشت 1393
Abstract:
In this article, an indirect forced convection solar dryer is used to study the kinetic drying of eggplant. The effective moisture diffusivity calculated by slop method follows the solar intensity with themaximum value of 1.68 E-09 at 15 PM. Performance of solar dryer is determined by defining the efficiency ofcollector and an effectiveness factor as the ratio of the drying rate in the indirect solar dryer to the drying rate in the open sun. The collector efficiency and the effectiveness factor vary with the drying time inversely Results show that the drying rate in the solar dryer is 3.5 g H O. g ds-1 Hr-1 and is 2 g H2O. g ds-1Hr-1for the open sun drying method in the beginning of the process. Several well-known mathematical models are applied in order to select the best model to present the eggplant drying behavior. Midilli and Kucuck model refers to drying process of product with correlation coefficients (R2) which are 0.9998 for solar dryer and 0.9996 for open sun
Keywords:
Renewable energy /Indirect solar dryer/ Collector efficiency /Effectiveness factor
Authors
Alireza Azimi
Department of Chemical Engineering, Faculty of Engineering,University of Isfahan, P.O. Box ۸۱۷۴۶-۷۳۴۴۱, Isfahan, Iran
Touraj Tavakoli
Department of Chemical Engineering, Faculty of Engineering,University of Isfahan, P.O. Box ۸۱۷۴۶-۷۳۴۴۱, Isfahan, Iran
Hamid Khademhosseini Beheshti
Department of Mechanical Engineering, Faculty of Engineering,University of Isfahan, P.O. Box ۸۱۷۴۶-۷۳۴۴۱, Isfahan, Iran
Amir Rahimi
Department of Chemical Engineering, Faculty of Engineering,University of Isfahan, P.O. Box ۸۱۷۴۶-۷۳۴۴۱, Isfahan, Iran