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Potential saving in energy using combined heat and power technology for drying agricultural products (banana slices)
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نویسنده
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Samadi Hashem ,Ghobadian Barat ,Najafi Gholamhassan ,Motevali Ali
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منبع
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journal of the saudi society of agricultural sciences - 2014 - دوره : 13 - شماره : 2 - صفحه:174 -182
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چکیده
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The drying behavior of banana slices was studied in a combined heat and power dryer system at 4 engine load levels (25%, 50%, 75%, and 100%) and at three levels of drying product thickness (3, 5, and 7 mm) with the constant airflow velocity of 1 m/s. results from the mathematical modeling showed that the midilli et al. model gave the best fit to the experimental data. the present study confirms the importance of heat recovery to improve the system energy consumption and efficiency. energy efficiency of this dryer was from 11% to 20% higher than that of electricity efficiency. also, the specific energy consumption varied between 409 and 957 kwh/kgwater. the lowest value of energy consumption and highest value of energy efficiency were observed at 75% engine load and 3 mm thickness of sample.
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کلیدواژه
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Combined heat and power; Drying kinetics; Mathematical model; Energy efficiency; Energy consumption
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آدرس
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tarbiat modares university, Agricultural Faculty, Department of Mechanics of Agricultural Machinery Engineering, ایران, tarbiat modares university, Department of Mechanics of Agricultural Machinery Engineering, ایران, tarbiat modares university, Agricultural Faculty, Department of Mechanics of Agricultural Machinery Engineering, ایران, tarbiat modares university, Agricultural Faculty, Department of Mechanics of Agricultural Machinery Engineering, ایران
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Authors
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