Euler-Euler CFD simulation of the fuel reactor of a 1 MWth chemical-looping pilot plant: Influence of the drag models and specularity coefficient
作者： Raman Sharma , Jan May , Falah Alobaid , Peter Ohlemüller , Jochen Ströhle
DOI: 10.1016/J.FUEL.2017.03.076
关键词:
摘要: Abstract Euler-Euler (two-fluid) model was applied to simulate the hydrodynamics of fuel reactor 1 MWth chemical-looping system with Geldart B particles. The drag models Wen-Yu and Gidaspow were used along restitution coefficient 0.6 specularity 0 1. results numerical simulation compared experimental data from combustion pilot plant at Technische Universitӓt Darmstadt. volume fraction methane agrees well measurements for all cases, while predicted fractions CO2, CO H2 different values due improper reaction ilmenite. Predicted pressure drop height similar cases. Nevertheless cases overestimate bottom by about 10 mbar. Keeping constant, outgoing mass flow ilmenite higher (ϕ = 1) as (ϕ = 0). This is rate (ϕ = 1), which increasing temperature gases therefore gas velocity, resulting in a entrainment particles..
tu-darmstadt.de
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