کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
688463 889451 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
One-dimensional modelling of conical spouted beds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
One-dimensional modelling of conical spouted beds
چکیده انگلیسی

A one-dimensional model has been developed that considers the solid cross-flow from the annulus into the spouted bed. The model is based on mass and momentum balance equations for the gas and solid in both the annulus and spout. The great advantage of the model is the need for only two empirical equations: one for obtaining minimum spouting velocity and the other one for obtaining the pressure gradient throughout the bed. The simulated values for solid and gas velocities are consistent with the experimental ones, except particle velocity along the spout, whose accurate prediction requires the consideration of spout diameter change with bed level. Based on the data obtained at the top of the spout, the model allows for calculating properties in the fountain, namely, fountain height and voidage at the core of the fountain.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing: Process Intensification - Volume 48, Issue 7, July 2009, Pages 1264–1269
نویسندگان
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