کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4925926 | 1431589 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solar PV powered mixed-mode tunnel dryer for drying potato chips
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
Solar PV system powered mixed-mode solar tunnel dryer (STD) for drying potato chips was studied. The STD was equipped with axial dc fan and flat plate solar air collector to enhance the thermal performance by maintaining a reasonable high temperature inside the drying chamber. The STD performance was evaluated without load and with load; and without and with using thermal curtain above potato slices during sunny days. Different airflow rates (2.1, 3.12 and 4.18Â m3/min) and pre-treatments for potato slices were investigated. The PV powered STD exhibited the ability to produce chips with safe moisture level within 6 and 7Â h for without and with using thermal curtain, respectively at airflow rate of 3.12Â m3/min. The frying time of potato chips was shortened to be only 15Â s. The best chips color was achieved with 1% sodium meta-bi-sulphite with using black thermal curtain above slices. Predicted and experimental moisture ratio of chips using developed STD were compared through several thin-layer drying models. The highest drying efficiency of 28.49 and 34.29% was recorded at airflow of 0.0786Â kg/s in case of without and with using thermal curtain, respectively. The developed STD provides chips in good quality and suitable for rural areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 116, Part A, February 2018, Pages 594-605
Journal: Renewable Energy - Volume 116, Part A, February 2018, Pages 594-605
نویسندگان
Mohamed A. Eltawil, Mostafa M. Azam, Abdulrahman O. Alghannam,