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1. Flow Patterns of New Type Flame Stabilizer in P.F. Combustor | |||
ZHAO Lingling,ZHOU Qiangtai,ZHAO Changsui | |||
Dynamic and Electronic Engineering 04 January 2011 | |||
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Abstract:A new type of flame stabilizer called Petal Flame Stabilizer (PFS) is put forward for the P.F. swirl burner of power plant boiler to increase the flame stability. A three-dimensional (360 degree) mathematical model is set up to analyze the mechanisms of the flame ignition and to compare the performance of PFS with the common bluff-body stabilizer in the same conditions. The research results show that the flow pattern PFS formed consists of a radial and a pair of axial recirculation zones at the leeward of each petal of PFS besides the central recirculation zone (CRZ). The mass and heat transfer depends on not only the fluctuation of microscopic turbulence at the edge of the recirculation zone which are the main drive force in the conventional swirl burner, but also the great-intensity macroscopic convection transfer. This special flow pattern (multi- recirculation zone) of PFS provides steady heat source, and is propitious for the stable combustion of pulverized coal. | |||
TO cite this article:ZHAO Lingling,ZHOU Qiangtai,ZHAO Changsui. Flow Patterns of New Type Flame Stabilizer in P.F. Combustor[OL].[ 4 January 2011] http://en.paper.edu.cn/en_releasepaper/content/4403897 |
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