CFD Simulation of Heat Transfer from an Immersed Bar in a Simple Batch Bubble Column
محل انتشار: یازدهمین کنفرانس دینامیک شاره ها
سال انتشار: 1387
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,280
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شناسه ملی سند علمی:
CFD11_074
تاریخ نمایه سازی: 12 مرداد 1387
چکیده مقاله:
A CFD model has been developed to estimate the heat transfer rate from cylindrical surfaces immersed in a simple batch bubble column. The heater position was 650 mm above the distributor. Several heaters of different length to diameter ratio were used. The effects of variation of superficial gas velocities in the range of 0.02-0.165 m/s on heat transfer rate were investigated for the different heaters with heat supply range of 3 to 300 W. It is found that the heat transfer coefficient decreases as the length of the heater increases to about 50 mm and heat transfer coefficient increases with increase of bulk temperature. A decrease in heat transfer coefficient with position of the heater toward the column wall and increase of the numbers of heater elements was reached.
کلیدواژه ها:
نویسندگان
Rahbar Rahimi
Associate Professor Department of Aerospace Engineering Sistan and Baluchestan University of Zahedan
Ali Valypoor Tayeby
Master Student Department of Aerospace Engineering Sistan and Baluchestan University of Zahedan