Abstract

Abstract A novel vortex combustor (VC) burning various solid, liquid, and gaseous fuels was recently developed and tested for commercial heating applications. The combustor is characterized by the strong swirl and low temperature combustion environment. This paper presents the computer simulation of this VC firing dry ultrafine coal at 0.6 MW thermal input and 26% excess air. The overall model of gas-particle flow and combustion in the VC is briefly described along with typical numerical results of combustor performance in gas flow, particle flow, gaseous combustion, and particle combustion.

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