Experimental and Computational Study of the Combustion Characteristics of Dual-Stage Lean Premixed Flame

Wenhua Zhao; Li Liu; Wenkai Shen; Yajin Lyu; Penghua Qiu

doi:10.1021/acs.energyfuels.8b04492

Experimental and Computational Study of the Combustion Characteristics of Dual-Stage Lean Premixed Flame

Wenhua Zhao
, Li Liu
, Wenkai Shen
, Yajin Lyu
, Penghua Qiu^*

^*Corresponding author for this work

School of Energy Science and Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A new type of flame organization, dual-stage lean premixed (DLP) combustion, is proposed. It constructs lean premixed flame with nonuniform equivalence ratio in the combustion zone, which is aimed at improving the load adaptability and ensuring low NO_x emission of lean premixed combustor. The combustion characteristics of DLP flame were further studied through both experimental and calculation methods. The results showed that the laminarSMOKE code with detail reaction mechanism can accurately simulate the combustion state of DLP flame. Thermocouple measurement has a certain deviation from actual situation, but it still reflects the interaction inside DLP flame. Diffusion transport of CH₄ has an important influence on the combustion of secondary flame. NO_x production in DLP flame can be significantly limited because of the abundant intermediates present in combustion zone, and the NO generated is mostly converted into NO₂.

Original language	English
Pages (from-to)	2547-2555
Number of pages	9
Journal	Energy and Fuels
Volume	33
Issue number	3
DOIs	https://doi.org/10.1021/acs.energyfuels.8b04492
State	Published - 21 Mar 2019
Externally published	Yes

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title = "Experimental and Computational Study of the Combustion Characteristics of Dual-Stage Lean Premixed Flame",

abstract = "A new type of flame organization, dual-stage lean premixed (DLP) combustion, is proposed. It constructs lean premixed flame with nonuniform equivalence ratio in the combustion zone, which is aimed at improving the load adaptability and ensuring low NOx emission of lean premixed combustor. The combustion characteristics of DLP flame were further studied through both experimental and calculation methods. The results showed that the laminarSMOKE code with detail reaction mechanism can accurately simulate the combustion state of DLP flame. Thermocouple measurement has a certain deviation from actual situation, but it still reflects the interaction inside DLP flame. Diffusion transport of CH4 has an important influence on the combustion of secondary flame. NOx production in DLP flame can be significantly limited because of the abundant intermediates present in combustion zone, and the NO generated is mostly converted into NO2.",

author = "Wenhua Zhao and Li Liu and Wenkai Shen and Yajin Lyu and Penghua Qiu",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = mar,

day = "21",

doi = "10.1021/acs.energyfuels.8b04492",

language = "英语",

volume = "33",

pages = "2547--2555",

journal = "Energy and Fuels",

issn = "0887-0624",

publisher = "American Chemical Society",

number = "3",

}

TY - JOUR

T1 - Experimental and Computational Study of the Combustion Characteristics of Dual-Stage Lean Premixed Flame

AU - Zhao, Wenhua

AU - Liu, Li

AU - Shen, Wenkai

AU - Lyu, Yajin

AU - Qiu, Penghua

PY - 2019/3/21

Y1 - 2019/3/21

N2 - A new type of flame organization, dual-stage lean premixed (DLP) combustion, is proposed. It constructs lean premixed flame with nonuniform equivalence ratio in the combustion zone, which is aimed at improving the load adaptability and ensuring low NOx emission of lean premixed combustor. The combustion characteristics of DLP flame were further studied through both experimental and calculation methods. The results showed that the laminarSMOKE code with detail reaction mechanism can accurately simulate the combustion state of DLP flame. Thermocouple measurement has a certain deviation from actual situation, but it still reflects the interaction inside DLP flame. Diffusion transport of CH4 has an important influence on the combustion of secondary flame. NOx production in DLP flame can be significantly limited because of the abundant intermediates present in combustion zone, and the NO generated is mostly converted into NO2.

AB - A new type of flame organization, dual-stage lean premixed (DLP) combustion, is proposed. It constructs lean premixed flame with nonuniform equivalence ratio in the combustion zone, which is aimed at improving the load adaptability and ensuring low NOx emission of lean premixed combustor. The combustion characteristics of DLP flame were further studied through both experimental and calculation methods. The results showed that the laminarSMOKE code with detail reaction mechanism can accurately simulate the combustion state of DLP flame. Thermocouple measurement has a certain deviation from actual situation, but it still reflects the interaction inside DLP flame. Diffusion transport of CH4 has an important influence on the combustion of secondary flame. NOx production in DLP flame can be significantly limited because of the abundant intermediates present in combustion zone, and the NO generated is mostly converted into NO2.

UR - https://www.scopus.com/pages/publications/85062826715

U2 - 10.1021/acs.energyfuels.8b04492

DO - 10.1021/acs.energyfuels.8b04492

M3 - 文章

AN - SCOPUS:85062826715

SN - 0887-0624

VL - 33

SP - 2547

EP - 2555

JO - Energy and Fuels

JF - Energy and Fuels

IS - 3

ER -

Experimental and Computational Study of the Combustion Characteristics of Dual-Stage Lean Premixed Flame

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