Study on laminar flame characteristics of H2/CO/O2/CO2 mixtures at different preheating temperatures

Min Chao Han; Yu Hua Ai; Zheng Chen; Yue Wang; Wen Jun Kong

Study on laminar flame characteristics of H₂/CO/O₂/CO₂ mixtures at different preheating temperatures

Min Chao Han
, Yu Hua Ai
, Zheng Chen
, Yue Wang
, Wen Jun Kong^*

^*Corresponding author for this work

Chinese Academy of Sciences
University of Chinese Academy of Sciences
Peking University

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

4 Scopus citations

Abstract

The laminar flame characteristics of H₂/CO/O₂/CO₂ mixtures at different preheating temperatures were studied using the dual-chambered, pressure release type spherical flame device. The laminar flame speeds and the Markstein lengths of mixtures were obtained at different preheating temperatures (298~450 K) and CO₂ dilution ratios (50%~70%). The results indicated that the Markstein lengths decreased with increasing CO₂ dilution ratio, and increased with elevating preheating temperature. The thermal effect of CO₂ dilution was more important in CO₂-diluted flame. The chemical effects increased with increasing CO₂ dilution ratio and decreased with elevating preheat temperature at low CO₂ dilution ratio, but decreased with elevating temperature at high CO₂ dilution ratio.

Original language	English
Pages (from-to)	189-193
Number of pages	5
Journal	Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
Volume	37
Issue number	1
State	Published - 1 Jan 2016
Externally published	Yes

Keywords

CO dilution
Chemical effect
Laminar flame speed
Markstein length
Syngas

Cite this

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title = "Study on laminar flame characteristics of H2/CO/O2/CO2 mixtures at different preheating temperatures",

abstract = "The laminar flame characteristics of H2/CO/O2/CO2 mixtures at different preheating temperatures were studied using the dual-chambered, pressure release type spherical flame device. The laminar flame speeds and the Markstein lengths of mixtures were obtained at different preheating temperatures (298\textasciitilde{}450 K) and CO2 dilution ratios (50\%\textasciitilde{}70\%). The results indicated that the Markstein lengths decreased with increasing CO2 dilution ratio, and increased with elevating preheating temperature. The thermal effect of CO2 dilution was more important in CO2-diluted flame. The chemical effects increased with increasing CO2 dilution ratio and decreased with elevating preheat temperature at low CO2 dilution ratio, but decreased with elevating temperature at high CO2 dilution ratio.",

keywords = "CO dilution, Chemical effect, Laminar flame speed, Markstein length, Syngas",

author = "Han, \{Min Chao\} and Ai, \{Yu Hua\} and Zheng Chen and Yue Wang and Kong, \{Wen Jun\}",

year = "2016",

month = jan,

day = "1",

language = "英语",

volume = "37",

pages = "189--193",

journal = "Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics",

issn = "0253-231X",

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TY - JOUR

T1 - Study on laminar flame characteristics of H2/CO/O2/CO2 mixtures at different preheating temperatures

AU - Han, Min Chao

AU - Ai, Yu Hua

AU - Chen, Zheng

AU - Wang, Yue

AU - Kong, Wen Jun

PY - 2016/1/1

Y1 - 2016/1/1

N2 - The laminar flame characteristics of H2/CO/O2/CO2 mixtures at different preheating temperatures were studied using the dual-chambered, pressure release type spherical flame device. The laminar flame speeds and the Markstein lengths of mixtures were obtained at different preheating temperatures (298~450 K) and CO2 dilution ratios (50%~70%). The results indicated that the Markstein lengths decreased with increasing CO2 dilution ratio, and increased with elevating preheating temperature. The thermal effect of CO2 dilution was more important in CO2-diluted flame. The chemical effects increased with increasing CO2 dilution ratio and decreased with elevating preheat temperature at low CO2 dilution ratio, but decreased with elevating temperature at high CO2 dilution ratio.

AB - The laminar flame characteristics of H2/CO/O2/CO2 mixtures at different preheating temperatures were studied using the dual-chambered, pressure release type spherical flame device. The laminar flame speeds and the Markstein lengths of mixtures were obtained at different preheating temperatures (298~450 K) and CO2 dilution ratios (50%~70%). The results indicated that the Markstein lengths decreased with increasing CO2 dilution ratio, and increased with elevating preheating temperature. The thermal effect of CO2 dilution was more important in CO2-diluted flame. The chemical effects increased with increasing CO2 dilution ratio and decreased with elevating preheat temperature at low CO2 dilution ratio, but decreased with elevating temperature at high CO2 dilution ratio.

KW - CO dilution

KW - Chemical effect

KW - Laminar flame speed

KW - Markstein length

KW - Syngas

UR - https://www.scopus.com/pages/publications/84964619905

M3 - 文章

AN - SCOPUS:84964619905

SN - 0253-231X

VL - 37

SP - 189

EP - 193

JO - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

JF - Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

IS - 1

ER -

Study on laminar flame characteristics of H₂/CO/O₂/CO₂ mixtures at different preheating temperatures

Abstract

Keywords

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