Combustion and Heat Transfer Model Study on CFB Dense Zone under Oxygen-enriched Combustion

Author

Chunbo, Wang ; Jiao, Zhang ; Weijun, Hou ; Zhihong, Huo ; Yanyan, Wang

Author_Institution

Energy & Power Eng., North China Electr. Power Univ., Baoding, China

Volume

1

fYear

2011

fDate

6-7 Jan. 2011

Firstpage

725

Lastpage

728

Abstract

The heat transfer character of oxy-fired CFB boiler was studied, and a model of dense zone that considering the combustion and heat transfer is suggested. Through the model, heat transfer coefficient and its impact parameters in dense zone are studied. Some research are done with 30%, 50%, 70% O2 conditions, and it was found that the heat transfer coefficient has no obvious change compared to common CFB boiler. The model takes a consideration of combustion condition in boiler, and offers a better reference for designing of CFB under oxygen-enriched combustion.

Keywords

boilers; coal; combustion; firing (materials); fluidised beds; heat transfer; oxygen; circulating fluidized bed; dense zone; heat transfer character; heat transfer coefficient; oxy-fired CFB boiler; oxygen enriched combustion; Boilers; Carbon; Combustion; Heat transfer; Mathematical model; Resistance heating; Thermal resistance; CFB; combustion model; heat transfer coefficient; oxygen-enriched combustion;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on

Conference_Location

Shangshai

Print_ISBN

978-1-4244-9010-3

Type

conf

DOI

10.1109/ICMTMA.2011.183

Filename

5720886