مقاله MATHEMATICAL MODELING AND EXPERIMENTAL STUDY OF PISTACHIO DRYING BEHAVIOR IN A MIXED MODE PV OPERATED FORCED CONVECTION SOLAR DRYER تحت فایل ورد (word) دارای 6 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

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بخشی از متن مقاله MATHEMATICAL MODELING AND EXPERIMENTAL STUDY OF PISTACHIO DRYING BEHAVIOR IN A MIXED MODE PV OPERATED FORCED CONVECTION SOLAR DRYER تحت فایل ورد (word) :

سال انتشار: 1386

محل انتشار: پانزدهمین کنفرانس سالانه مهندسی مکانیک

تعداد صفحات: 6

نویسنده(ها):

Zangiabadi – Msc,KCCPP، Shahid Bahonar University of Kerman
Ameri – Assistant Proffessor Shahid Bahonar University of Kerman
Mahmoudabadi – Msc Student، Shahid Bahonar University of Kerman

چکیده:

In Shahid Bahonar University of Kerman-southeast of Iran- a mixed-mode solar dryer specimen has been designed, manufactured and tested in late summer and early fall to investigate its performance, efficiency and drying process of various agricultural products. The device has been tested with pistachio which must has top-level quality and toxics especially aflatoxin less than 1 ppb. This strict conditions demands consideration about how one grow, harvest and post-harvest this product. Alternative sources for suction fans have been used. During the experiments essential parameters for calculating its performance and modeling the process like ambient temperature, temperature inside the
collector and drying chamber, velocity and moisture content of heated air, solar radiation and weight of product were measured. The maximum temperature inside chamber at the end of harvest season is about 60C, which was at least 20C above ambient temperature from 8 am to 4pm. Also a mathematical modeling which based on equations of heat and mass conservation was performed. Numerical results such as product temperature profile, remained moisture content of pistachio in different racks and drying rate due to time were plotted and compared withexperimental counterparts. It was found that proposed model have a sufficient accuracy with experimental results for forced convection dryers.