CFD analysis of spatial distribution of various parameters in downdraft gasifier

Abstract

Gasification converts carbonaceous pulverized fuels into synthesis gas, a mixture of CO and H2 that is a raw material for chemicals as well as a fuel for producing electricity. Gasification produces a much higher concentration of carbon dioxide than direct combustion of coal in air. In view of these, gasification energy combined with Computational Fluid Dynamics (CFD) software has been described in some detail in the following study. The aspect of gasification processes have been investigated for down-draft gasifier using simulation in FLUENT software. The formation of flow pattern, temperature, turbulence and product gas composition were investigated. Some of the results are compared with the results available from the literature. © 2012 Published by Elsevier Ltd.