A CFD approach on the effect of particle size on char entrainment in bubbling fluidised bed reactors


The fluid – particle interaction inside a 41.7 mg s-1 fluidised bed reactor is modelled. Three char particles of sizes 500 µm, 250 µm, and 100 µm are injected into the fluidised bed and the momentum transport from the fluidising gas and fluidised sand is modelled. Due to the fluidising conditions and reactor design the char particles will either be entrained from the reactor or remain inside the bubbling bed. The particle size is the factor that differentiates the particle motion inside the reactor and their efficient entrainment out of it. A 3-Dimensional simulation has been performed with a completele revised momentum transport model for bubble three-phase flow according to the literature as an extension to the commercial finite volume code FLUENT 6.2.

Publication DOI: https://doi.org/10.1016/j.biombioe.2009.09.007
Divisions: Engineering & Applied Sciences > Engineering Systems & Management
Engineering & Applied Sciences > Chemical Engineering & Applied Chemistry
Engineering & Applied Sciences > Energy and Bioproducts Research Institute (EBRI)
Uncontrolled Keywords: CFD,fluidized bed,momentum transport,char entrainment,bioenergy,chemical engineering,Agronomy and Crop Science,Forestry,Renewable Energy, Sustainability and the Environment,Waste Management and Disposal
Full Text Link: https://eprints ... n.ac.uk/147403/
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2010-01
Authors: Papadikis, K.
Gu, S.
Bridgwater, Anthony V. ( 0000-0001-7362-6205)

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