Authors: Antonio Galgano, Colomba Di Blasi
Addresses: Dipartimento di Ingegneria Chimica, Universita degli Studi di Napoli 'Federico II', P.le V. Tecchio, 80125 Napoli, Italy. ' Dipartimento di Ingegneria Chimica, Universita degli Studi di Napoli 'Federico II', P.le V. Tecchio, 80125 Napoli, Italy
Abstract: A one-dimensional and unsteady model for the gasification/combustion of thick wood is developed and coupled with a two-dimensional CFD model for the gaseous phase processes, solved by the commercial code CFX4.4. Simulations of the combustion of single wood logs, as obtained with the coupled solid- and gas-phase models and with a solid-phase model alone, are compared with experimental measurements. Acceptable agreement is obtained in the first case, whereas the solid-phase model alone highly underestimates the conversion time and overestimates the mean mass loss rates. A two-dimensional formulation of the equations for the solid-phase does not affect significantly the global parameters.
Keywords: biomass combustion; modelling; gasification; CFD; solid-phase models; computational fluid dynamics.
Progress in Computational Fluid Dynamics, An International Journal, 2006 Vol.6 No.4/5, pp.287 - 302
Published online: 09 Jun 2006 *Full-text access for editors Access for subscribers Purchase this article Comment on this article