The radiative heat transfer problem is investigated numerically for 2D complex pilot plant of biomass pyrolysis composed by two pyrolysis chambers and a heat recuperator. In order to increase gases residence time and heat transfer, the heat recuperator is provided with many inclined, vertical, horizontal, diffuse and gray baffles of finite thickness and has a complex geometry. The Finite Volume Method (FVM) is applied to study radiative heat transfer. The blocked-off region procedure is used to treat the geometrical irregularities. Seven cases are considered in order to demonstrate the effect of adding baffles on the walls of the heat recuperator and on the walls of the pyrolysis rooms then choose the best case giving the maximum heat flux transferred to the biomass in the pyrolysis chambers. Shadow effect caused by the presence of the baffles is also studied.

Volume Subject Area:
Heat Transfer in Energy Systems
Keywords:
Radiative Heat Transfer, FVM, blocked-off region procedure, Biomass pyrolysis fumes, Heat recuperation, Shadow effect
Topics:
Biomass, Furnaces, Heat, Modeling, Pyrolysis, Radiative heat transfer, Shades and shadows
This content is only available via PDF.
Copyright © 2009
 by ASME
You do not currently have access to this content.