کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
152915 456512 2008 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
CFD and experimental studies of solids hold-up distribution and circulation patterns in gas–solid fluidized beds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
CFD and experimental studies of solids hold-up distribution and circulation patterns in gas–solid fluidized beds
چکیده انگلیسی

The hydrodynamics of a gas–solid fluidized bed was studied using a combination of experiments and CFD simulations. Experiments were conducted with polypropylene particles (710–1000 μm in diameter) as solid phase and air as gas phase. A multifluid Eulerian model incorporating the kinetic theory for solid particles is used to simulate the gas–solid flow. Momentum exchange coefficient was calculated using the Gidaspow drag model. Effects of gas velocity, type of sparger, presence of draft tube on solid hold-up distribution and solid circulation pattern have been investigated. The presented experimental data and comparison with CFD predictions provide useful basis for further work on understanding bubbling fluidized beds.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 143, Issues 1–3, 15 September 2008, Pages 147–160
نویسندگان
, ,