کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6767609 512460 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Performances and improvement potential of solar drying system for palm oil fronds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Performances and improvement potential of solar drying system for palm oil fronds
چکیده انگلیسی
In this study, an indirect forced convection solar drying system was tested for drying of palm oil fronds. The drying of 100 kg of palm oil fronds via solar drying system reduced the moisture content from 60% (w.b) to 10% (w.b) in 22 h (3 d of drying). During the drying process, the daily mean values of the drying chamber inlet temperature, drying chamber outlet temperature, drying chamber air temperature, and solar radiation ranged from 26 °C to 75 °C, 25 °C-65 °C, 26 °C-67 °C, and 96 W/m2 to 1042 W/m2 respectively, with corresponding average values of 53 °C, 46 °C, 48 °C, and 580 W/m2. At average solar radiation of about 600 W/m2 and air flow rate 0.13 kg/s, the collector, drying system and pick-up efficiencies were found about 31%, 19% and 67% respectively. The specific moisture extraction rate (SMER) was 0.29 kg/kWh. The exergy efficiency varied between 10% and 73%, with an average of 47%. In addition, the improvement potential of solar drying system for palm oil fronds ranged from 8 W to 455 W, with an average of 172 W.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 78, June 2015, Pages 561-565
نویسندگان
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