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1. The Concept of Gas-Solid Mixing Coefficient for Pulverized Coal Swirl Burner | |||
ZHAO Lingling,ZHOU Qiangtai,ZHAO Changsui | |||
Dynamic and Electronic Engineering 06 January 2011 | |||
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Abstract:The stable combustion of swirl burner is assessed usually by the size of the central recirculation zone (CRZ), the quantity of recirculated flow and the concentration of pulverized coal flow, while the mixing time and intensity between high temperature flue gas and the pulverized coal are not considered. This paper put forward the concept of mixing coefficient that is used as the assessment of the mixing speed and intensification between the pulverized coal-air flow and the recirculation high temperature gas. Through the mathematics simulation, the mixing coefficients of the general bluff-body stabilizer, the petal flame stabilizer, and the common swirl burner and petal swirl burner are analyzed. The results show that the mixing coefficient can perfectly predict the mixing of the boundary of CRZ, which is important to deepen the investigation in stable combustion and flow field for swirl burner in energy consuming industry. | |||
TO cite this article:ZHAO Lingling,ZHOU Qiangtai,ZHAO Changsui. The Concept of Gas-Solid Mixing Coefficient for Pulverized Coal Swirl Burner[OL].[ 6 January 2011] http://en.paper.edu.cn/en_releasepaper/content/4403903 |
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