کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9636436 465853 2005 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fluid dynamics of the supercritical fluidized bed
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Fluid dynamics of the supercritical fluidized bed
چکیده انگلیسی
A comprehensive experimental study has been carried out to investigate the fluidization behavior with supercritical carbon dioxide at pressures up to 30 MPa for various solids which behave as Geldart A and B powders, respectively, under ambient conditions. From pressure drop measurements minimum fluidizing velocities and bed voidages were determined. Capacitance probe measurements yielded suspension voidages, bubble sizes and velocities. It was found that Ergun's equation is also applicable to the flow of a supercritical fluid through a fixed bed and that the Wen and Yu relationship can be used for the determination of the minimum fluidizing velocity. Correlations for homogeneous bed expansion, minimum bubbling velocity and the visible bubble flow were derived.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 158, Issues 1–3, 27 October 2005, Pages 102-114
نویسندگان
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