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1. Investigation of the Optimization of Slit Width for a Slitted Bluff-body Burner: Pulverized Coal Ignition and Flame Stabilization

Author

Qian Renzhang, Zheng Chuguang, Shi Xuefeng, and Shi Hongshi

Subjects
genetic structures, Pulverized coal-fired boiler, Chemistry, General Chemical Engineering, Flow (psychology), General Physics and Astronomy, Energy Engineering and Power Technology, General Chemistry, Mechanics, Gas concentration, Combustion, Flow field, eye diseases, law.invention, Ignition system, Fuel Technology, law, Combustor, sense organs, Slit width
Abstract

After studying the factors of how, the slit width of a slitted bluff-body (SBB) burner influences the cold state flow field, the hot state temperature and gas concentration fields. the following important conclusions are obtained: the slit width influences not only flow characteristics behind the slitted bluff-body such as the size and reflux rate of the recirculation region. but also the quantity of pulverized coal jetting into it. To use it in an industrial plant, the optimal value of slit width is determined as about 10 percents of the width of the bluff-body (BB).

Published
1997
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