Title :
Study on Pulverized Coal Combustion in O2/CO2 Atmosphere
Author :
Gu, Mingyan ; Dong, Hongyan ; Liu, Xuhui ; Li, Jiaxin
Author_Institution :
Dept. of Metall. & Resource, Anhui Univ. of Technol., Ma´´anshan, China
Abstract :
The pulverized coal combustion in O2/CO2 atmosphere is one of the promising new technologies which can reduce the emission of carbon dioxide and NOx. In this study, a three dimensional mathematical multiphase CFD model has been developed to simulate the combustion characteristics of pulverized coal in the atmospheres of O2/CO2. It was observed that the combustion characters of pulverized coal show great differently compared with the coal combustion process in the air. The flame temperature decreases when the gas N2 is replaced by CO2. Also, the gas temperature is affected by the O2/CO2 ratio in O2/CO2 atmosphere.
Keywords :
carbon compounds; coal; combustion; computational fluid dynamics; global warming; multiphase flow; CO2; O2; carbon dioxide emission; coal combustion process; combustion characteristics; flame temperature; global warming; pulverized coal combustion; three dimensional mathematical multiphase CFD model; Atmospheric modeling; Coal; Combustion; Fires; Mathematical model; Temperature distribution;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6253-7
DOI :
10.1109/APPEEC.2011.5748891
