کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7935676 1513056 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermo-environomical and drying kinetics of bitter gourd flakes drying under north wall insulated greenhouse dryer
ترجمه فارسی عنوان
سینتیک حرارتی غوطه وری و خشک کردن خشک کردن خشک گندم تحت دیواره دیواری گلخانه ای
کلمات کلیدی
مدل سازی حرارتی، سینتیک خشک کردن لایه نازک، تجزیه و تحلیل انرژی، تحلیل اقتصادی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
The greenhouse dryers consist opaque and insulated north wall with solar air heating collector at the bottom. It has been used for bitter gourd flakes drying under natural and forced modes. Thermal models were developed for the both modes of drying. Experiments were performed concurrently for open sun, natural and forced modes to compare their thermal modeling and drying kinetics results. Energy analysis includes; embodied energy, CO2 emission, CO2 mitigation and economic evaluation were done for both modes of drying. The predicted values of bitter gourd flakes and room air temperature, and moisture evaporation rate showed the fair agreement with the experimental observations within the root mean square of percentage deviation ranged from 3.25% to 5.82% and 2.83% to 5.26%, and the coefficient of correlation ranged from 0.98 to 0.99 and 0.99 to 1 under natural and forced modes, respectively. The final moisture ratio was achieved 0.12 after 15 h, 0.14 after 16 h and 0.25 after 21 h under forced, natural and open sun modes respectively. Crop drying under forced mode is found significantly faster than other modes of drying. The Logarithmic model was selected as best curve fitting technique for non-linear regression analysis for forced mode. The energy payback time of developed dryers under natural and forced modes is 1.68 and 2.35 years, respectively. The net CO2 mitigation of bitter gourd flakes drying is 33.04 and 36.34 t under natural and forced modes, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 162, 1 March 2018, Pages 205-216
نویسندگان
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