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To achieve good performance of the utility boiler, dynamic variables such as drum pressure, steam temperature and water level of drum, etc. must be controlled. According to the operating rules and the characteristics analysis of industrial boiler, a complete control scheme for boiler is designed. Specifically, due to the typical nonlinear and coupled characteristics of outlet pressure of boiler, a...
Oxygen-enriched CFB combustion technology has the combined advantage of producing high CO2 concentration flue gas which is suitable for direct compression and sequestration and allowing excellent fuel flexibility. Due to the nature of oxygen-enriched combustion, the combustion characteristic of fuel in CFB boilers would be significantly different from those in the conventional CFB systems. To accurately...
As one of the top five most seriously polluted cities by acid rain in the southwest of China, Nanchong was selected as one of 18 pilot cities of China for Clear Energy Action (CEA) by the United Nations Development Program (UNDP) and China National Science and Technology Ministry (NSTM) from 2001-2005. We analyze and discuss the economic, social, and environmental significance and impacts of the substitution...
Oxygen-enriched (O2/CO2) combustion in circulating fluidized bed(CFB) is one of the most promising clean coal combustion technology which shows good gaseous pollutants control, especially greenhouse CO2. In the paper, the thermogravimetric experiments of Hennan lean coal-char under O2/CO2 and O2/N2 atmosphere have been carried out, the influence of atmosphere, O2 concentration and heating rate on...
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