کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
210752 461724 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
3D simulation of the effects of sphericity on char entrainment in fluidised beds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
3D simulation of the effects of sphericity on char entrainment in fluidised beds
چکیده انگلیسی

The paper presents a 3-dimensional simulation of the effect of particle shape on char entrainment in a bubbling fluidised bed reactor. Three char particles of 350 μm side length but of different shapes (cube, sphere, and tetrahedron) are injected into the fluidised bed and the momentum transport from the fluidising gas and fluidised sand is modelled. Due to the fluidising conditions, reactor design and particle shape the char particles will either be entrained from the reactor or remain inside the bubbling bed. The sphericity of the particles is the factor that differentiates the particle motion inside the reactor and their efficient entrainment out of it. The simulation has been performed with a completely revised momentum transport model for bubble three-phase flow, taking into account the sphericity factors, and has been applied as an extension to the commercial finite volume code FLUENT 6.3.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 91, Issue 7, July 2010, Pages 749–758
نویسندگان
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