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Behavior of suspended coal-water slurry droplets in a combustion environment

Journal Article · · Combust. Flame; (United States)
OSTI ID:5500357
Single suspended coal-water slurry droplets have been burned in hot gas streams to reveal the basic nature of their evaporation and heating processes. Temperature measurement and microscopic observation were carried out. The effects of coal type, droplet size, coal fraction in the slurry, and gas temperature and velocity on slurry combustion were studied systematically. Increasing the coal fraction in the slurry or decreasing the droplet size may reduce the time of water evaporation. Physical mechanisms of the evaporation and heating process of caking and non-caking slurries are proposed. Since the non-caking particles will not agglomerate during heating, the complete combustion of low-rank lignite slurry could be easier to achieve.
OSTI ID:
5500357
Journal Information:
Combust. Flame; (United States), Journal Name: Combust. Flame; (United States) Vol. 51:3; ISSN CBFMA
Country of Publication:
United States
Language:
English