Experimental Study on Combustion Characteristics of Blend coal in Thermal-balance and Recommendations Type Selection of Ultra-Supercritical Boiler

Author

Zeng Lingda ; Dai Kejie ; Chen Qijuan ; Xiong Jie ; Wang Xiaohua ; Wang Binghong ; Zou Haiqing

Author_Institution

Sch. of Power & Mech. Eng., Wuhan Univ., Wuhan, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

5

Abstract

The ignition stability and burnout behaviors of the blend coals to be used in the 2 Ã— 680 MW ultra-supercritical boilers of second stage project of Xisaishan Power Generation Co. Ltd are analyzed by using the thermal gravimetric analyzer. The results showed that the ignition and combustion stability of the design coals were not nice and the coals were difficult to be burnt out. At the meantime, according to the combustion behavior of the blend coals, the primary suggestions for type selection of boiler equipments and the selection of operating parameters were proposed. Analysis of the combustion behaviors of the blend coals to be used in the boiler and adaptability of the boiler to coal rank variations indicated that the tangential firing is a better choice for the boiler.

Keywords

boilers; coal; combustion; ignition; Xisaishan Power Generation Co. Ltd; blend coal; burnout behaviors; combustion characteristics; combustion stability; ignition stability; tangential firing; thermal-balance; ultrasupercritical boiler; Boilers; Combustion; Fires; Fuels; Furnaces; Ignition; Power generation; Power generation economics; Stability; Thermal engineering;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5448243

Filename

5448243