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ISRN Renewable Energy
Volume 2012 (2012), Article ID 541596, 6 pages
Research Article

Thermofluidynamic Analysis of a Combustor Chamber Coupled to a Biomass Downdraft Gasifier

1Institute of Agricultural and Technological Science—Agricultural and Environmental Engineering, Federal University of Mato Grosso (UFMT), 78735-901 Rondonópolis, MT, Brazil
2Department of Agricultural Engineering, Federal University of Viçosa (UFV), 36570-000 Viçosa, MG, Brazil

Received 18 April 2012; Accepted 13 August 2012

Academic Editors: M. Beccali, A. Bosio, H. K. Ozturk, and A. C. Rastogi

Copyright © 2012 Jofran Luiz de Oliveira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Biomass is one of the most promising renewable energy sources. Abundantly, the potential as an alternative source to meet the world energy demand has been widely acknowledged. Gasification is one of the most efficient processes concerning thermochemical conversion, having as objective the production of a gas with useful energy power, known as producer gas. In order to optimize thermochemical processes such as the combustion of gases and subsequent gas mixture, computer modeling is becoming an important tool. Aiming to improve the performance of a combustion chamber, previously coupled to a downdraft gasifier, a thermofluidynamic model was elaborated and validated, using the concepts of computational fluid dynamics (CFD). It was reported that temperature, pressure, and velocity distributions of the computational model showed good consistency with experimental data, which allows using this model to predict the performance of this type of combustion chambers.