Investigation on the Burning of Unpulverized Coal in a Self Excited Acoustic Field

摘要

Results obtained from the burning of unpulverized coal in a Rijke type pulsating combustor are presented. The developed combustor consists of an open-ended tube where a fuel burning bed is located in the middle of its lower half. The release of heat in this location excites the fundamental acoustic mode of the tube and the resulting oscillations lead to a very intense and efficient combustion process. The main performance data presented include combustion efficiencies, heat release, and transfer rates.