Optimisation of Biomass Grate Furnaces with a New 3D Packed Bed Combustion Model - On Example of a Small-Scale Underfeed Stoker Furnace

R. Mehrabian, R. Scharler, A. Weissinger & I. Obernberger
The design and optimisation of a biomass grate furnace requires accurate and efficient models for the combustion process on the grate as well as the turbulent reactive flow in the combustion chamber. Computational Fluid Dynamics (CFD) have been successfully applied for gas phase combustion. However, no numerical models for the biomass packed bed combustion, which can be used as engineering design tools, are commercially available at present. This paper presents an innovative 3D CFD model...