Experimental study in H2/CO/CH4-air and H 2/CO/C3H8-air premixed flames. Part 2: cellular instabilities

Tran Manh Vu; Jeong Park; Jeong Soo Kim; Oh Boong Kwon; Jin Han Yun; Sang In Keel

doi:10.4028/www.scientific.net/MSF.673.71

Experimental study in H₂/CO/CH₄-air and H ₂/CO/C₃H₈-air premixed flames. Part 2: cellular instabilities

Tran Manh Vu, Jeong Park, Jeong Soo Kim, Oh Boong Kwon, Jin Han Yun, Sang In Keel

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

Abstract

Experiments in a constant pressure combustion chamber at room temperature and elevated pressures using schlieren system were conducted to investigate the cellular instabilities in hydrogen/carbon monoxide/methane (or propane-air premixed flames. In the present study, hydrodynamic and diffusional-thermal instabilities were evaluated to elucidate their effects to flame instabilities. Effective Lewis numbers of premixed flames with methane addition decrease for all of the cases. Meanwhile, the effective Lewis numbers with propane addition increase for lean and stoichiometric conditions, but they increase for rich and stoichiometric cases for hydrogen-enriched flames. With propane addition, the propensity for cells formation is significantly diminished whereas the cellular instabilities for hydrogen enriched flames are promoted. With methane addition, the similar behavior of cellularity is obtained, indicating that methane is not a candidate for suppressing cells formation in hydrogen/carbon monoxide/methane-air premixed flames.

Original language	English
Title of host publication	Explosion, Shock Wave and High-Energy Reaction Phenomena, ESHP 2010
Publisher	Trans Tech Publications
Pages	71-76
Number of pages	6
ISBN (Print)	9783037850183
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.673.71
Publication status	Published - 2011
Externally published	Yes
Event	Explosion, Shock Wave and High-Energy Reaction Phenomena 2010 - Seoul, Korea, South Duration: 1 Sept 2010 → 3 Sept 2010 Conference number: 3rd https://www.scientific.net/MSF.673 (Proceedings)

Publication series

Name	Materials Science Forum
Volume	673
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	Explosion, Shock Wave and High-Energy Reaction Phenomena 2010
Abbreviated title	ESHP 2010
Country/Territory	Korea, South
City	Seoul
Period	1/09/10 → 3/09/10
Internet address	https://www.scientific.net/MSF.673 (Proceedings)

Keywords

Carbon monoxide
Cellular instabilities
Hydrocarbon
Hydrogen
Premixed flame

Access to Document

10.4028/www.scientific.net/MSF.673.71

Cite this

Vu, T. M., Park, J., Kim, J. S., Kwon, O. B., Yun, J. H., & Keel, S. I. (2011). Experimental study in H₂/CO/CH₄-air and H ₂/CO/C₃H₈-air premixed flames. Part 2: cellular instabilities. In Explosion, Shock Wave and High-Energy Reaction Phenomena, ESHP 2010 (pp. 71-76). (Materials Science Forum; Vol. 673). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/MSF.673.71

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title = "Experimental study in H2/CO/CH4-air and H 2/CO/C3H8-air premixed flames. Part 2: cellular instabilities",

abstract = "Experiments in a constant pressure combustion chamber at room temperature and elevated pressures using schlieren system were conducted to investigate the cellular instabilities in hydrogen/carbon monoxide/methane (or propane-air premixed flames. In the present study, hydrodynamic and diffusional-thermal instabilities were evaluated to elucidate their effects to flame instabilities. Effective Lewis numbers of premixed flames with methane addition decrease for all of the cases. Meanwhile, the effective Lewis numbers with propane addition increase for lean and stoichiometric conditions, but they increase for rich and stoichiometric cases for hydrogen-enriched flames. With propane addition, the propensity for cells formation is significantly diminished whereas the cellular instabilities for hydrogen enriched flames are promoted. With methane addition, the similar behavior of cellularity is obtained, indicating that methane is not a candidate for suppressing cells formation in hydrogen/carbon monoxide/methane-air premixed flames.",

keywords = "Carbon monoxide, Cellular instabilities, Hydrocarbon, Hydrogen, Premixed flame",

author = "Vu, \{Tran Manh\} and Jeong Park and Kim, \{Jeong Soo\} and Kwon, \{Oh Boong\} and Yun, \{Jin Han\} and Keel, \{Sang In\}",

year = "2011",

doi = "10.4028/www.scientific.net/MSF.673.71",

language = "English",

isbn = "9783037850183",

series = "Materials Science Forum",

publisher = "Trans Tech Publications",

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Vu, TM, Park, J, Kim, JS, Kwon, OB, Yun, JH & Keel, SI 2011, Experimental study in H₂/CO/CH₄-air and H ₂/CO/C₃H₈-air premixed flames. Part 2: cellular instabilities. in Explosion, Shock Wave and High-Energy Reaction Phenomena, ESHP 2010. Materials Science Forum, vol. 673, Trans Tech Publications, pp. 71-76, Explosion, Shock Wave and High-Energy Reaction Phenomena 2010, Seoul, Korea, South, 1/09/10. https://doi.org/10.4028/www.scientific.net/MSF.673.71

Experimental study in H₂/CO/CH₄-air and H ₂/CO/C₃H₈-air premixed flames. Part 2: cellular instabilities. / Vu, Tran Manh; Park, Jeong; Kim, Jeong Soo et al.
Explosion, Shock Wave and High-Energy Reaction Phenomena, ESHP 2010. Trans Tech Publications, 2011. p. 71-76 (Materials Science Forum; Vol. 673).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

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T2 - Explosion, Shock Wave and High-Energy Reaction Phenomena 2010

AU - Vu, Tran Manh

AU - Park, Jeong

AU - Kim, Jeong Soo

AU - Kwon, Oh Boong

AU - Yun, Jin Han

AU - Keel, Sang In

N1 - Conference code: 3rd

PY - 2011

Y1 - 2011

N2 - Experiments in a constant pressure combustion chamber at room temperature and elevated pressures using schlieren system were conducted to investigate the cellular instabilities in hydrogen/carbon monoxide/methane (or propane-air premixed flames. In the present study, hydrodynamic and diffusional-thermal instabilities were evaluated to elucidate their effects to flame instabilities. Effective Lewis numbers of premixed flames with methane addition decrease for all of the cases. Meanwhile, the effective Lewis numbers with propane addition increase for lean and stoichiometric conditions, but they increase for rich and stoichiometric cases for hydrogen-enriched flames. With propane addition, the propensity for cells formation is significantly diminished whereas the cellular instabilities for hydrogen enriched flames are promoted. With methane addition, the similar behavior of cellularity is obtained, indicating that methane is not a candidate for suppressing cells formation in hydrogen/carbon monoxide/methane-air premixed flames.

AB - Experiments in a constant pressure combustion chamber at room temperature and elevated pressures using schlieren system were conducted to investigate the cellular instabilities in hydrogen/carbon monoxide/methane (or propane-air premixed flames. In the present study, hydrodynamic and diffusional-thermal instabilities were evaluated to elucidate their effects to flame instabilities. Effective Lewis numbers of premixed flames with methane addition decrease for all of the cases. Meanwhile, the effective Lewis numbers with propane addition increase for lean and stoichiometric conditions, but they increase for rich and stoichiometric cases for hydrogen-enriched flames. With propane addition, the propensity for cells formation is significantly diminished whereas the cellular instabilities for hydrogen enriched flames are promoted. With methane addition, the similar behavior of cellularity is obtained, indicating that methane is not a candidate for suppressing cells formation in hydrogen/carbon monoxide/methane-air premixed flames.

KW - Carbon monoxide

KW - Cellular instabilities

KW - Hydrocarbon

KW - Hydrogen

KW - Premixed flame

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M3 - Conference Paper

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SN - 9783037850183

T3 - Materials Science Forum

SP - 71

EP - 76

BT - Explosion, Shock Wave and High-Energy Reaction Phenomena, ESHP 2010

PB - Trans Tech Publications

Y2 - 1 September 2010 through 3 September 2010

ER -