Investigation of the effect of air turbulence intensity on NOx emission in non-premixed hydrogen and hydrogen-hydrocarbon composite fuel combustion

被引：22

作者：

Hashemi, S. A. ^{[1
]}

Fattahi, A. ^{[1
]}

Sheikhzadeh, G. A. ^{[1
]}

Mehrabian, M. A. ^{[2
]}

机构：

[1] Univ Kashan, Dept Mech Engn, Kashan, Iran

[2] Shahid Bahonar Univ Kerman, Dept Mech Engn, Kerman, Iran

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2011年 / 36卷 / 16期

关键词：

Hydrogen-hydrocarbon fuel; Turbulence intensity; Turbulent diffusion flames; NO formation; beta-PDF model; NITRIC-OXIDE FORMATION;

D O I：

10.1016/j.ijhydene.2011.05.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, the effect of air turbulence intensity on NO formation in the combustion of mixed hydrogen-hydrocarbon fuel is numerically studied. The fuels used in this study are 100% H-2, 70% H-2 + 30% CH4, 10% H-2 + 90% CH4 and 100% CH4. Finite volume method is utilized to solve the governing equations. The obtained results using realizable k-epsilon and beta-PDF models show good agreement with other numerical and experimental results. The results show that increasing air turbulence intensity decreases NO concentration in the flame zone and at the combustor outlet. With increasing air turbulence intensity, maximum decreasing of NO at the combustor outlet is for the case of pure hydrogen fuel. It is also found that adding hydrogen to methane rises the peak temperature of the flame. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：10159 / 10168

页数：10

共 28 条

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[Anonymous], P EUR COMB M LOUV LA

[2]

[Anonymous], INTRO COMBUSTION CON

[3]

[Anonymous], GREENH ISS

[4]

[Anonymous], EPA600276247A