Combustion dynamics at biomass thermochemical conversion downstream of integrated gasifier and combustor
2013
Abricka, M., University of Latvia, Riga (Latvia) | Barmina, I., University of Latvia, Riga (Latvia) | Suzdalenko, V., University of Latvia, Riga (Latvia) | Zake, M., University of Latvia, Riga (Latvia)
Swirling flows are widely used to stabilize the flame reaction zone and to provide enhanced mixing of the axial fuel flow with air swirl. The goal of the present paper is to investigate the influence of the air swirl on the formation of the flame reaction zone at thermochemical conversion of the pelletized biomass. An experimental study of the swirl effects on the combustion dynamics is carried out providing the complex measurements of the formation of the flame temperature and composition profiles at different stages of thermochemical conversion of biomass pellets along with estimation of the effect of the swirl level on the mixing of the axial flow of volatiles with air swirl determining the thermochemical conversion of biomass. The numerical simulation of the swirl flow formation is used to analyze the results of the experimental measurements.
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