Large-Eddy Simulation of Pulverized Coal Combustion in Swirling Flow

被引：0

作者：

Tanno, K. ^{[1
]}

Watanabe, H. ^{[1
]}

Hashimoto, N. ^{[1
]}

Kurose, R. ^{[2
]}

Shirai, H. ^{[1
]}

机构：

[1] CRIEPI, Energy Engn Res Lab, 2-6-1 Nagasaka, Yokosuka, Kanagawa, Japan

[2] Kyoto Univ, Dept Mech Engn & Sci, Sakyo Ku, Kyoto, Japan

来源：

CLEANER COMBUSTION AND SUSTAINABLE WORLD | 2012年

关键词：

Pulverized Coal Combustion; Large-Eddy Simulation; Swirling Flow; TURBULENCE; MODEL; JET;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Large-eddy simulation (LES) is applied to both a pulverized coal combustion and non-conbusion field in a combustion test furnace with a practical advanced low NOx burner called CI-alpha burner, and investigated the effect to coal combustion on flow field and ignition mechanism. The results show that predicted flow filed and coal particle behavior are in general agreement with the experiment. Coal combustion storongly affect flow filed. Primary air jet and swirling flow is enhanced by the burned gas expansion. Moreover, a recirculation flow formed by strong swirling flow is observed near the burner region and keeps satable coal combustion by transporting hot gas and increasing coal particle residence time.

引用

页码：670 / 674

页数：5

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