Extinction of triple flames at counter-flow

T. Wada, Takeshi Yokomori, M. Mizomoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The details of how each premixed flame (PF) merges into the diffusion flame (DF) were presented, focusing on the extinction of triple flames, and compares the extinction with a pure premixed (twin flame) or pure diffusion flame using counter-flow. The triple flames were formed using different fuel concentration streams, i.e., equivalence ratios, composed of methane and dry air. At near extinction, quasi-single flame formed by the merging rich PF (RPF) and lean PF (LPF) was observed. The PPF had a higher maximum strain rates at extinction than the strain rates at extinction converge linearly. According to luminous intensity profile, intermediate product in the rich side of the flame might support reaction in the lean side where RPF merges into DF. As the equivalence ratios of the PPF and the mill flame move towards stoichiometric conditions, the maximum strain rates at extinction converged linearly. The width of the PPF at extinction was constant for all rich and lean stream combinations, indicating that unburnt fuel might exist in the exhaust gas, and shortages of the time to complete some elementally reactions affect this phenomenon. This is an abstract of a paper presented at the 30th International Symposium on combustion (Chicago, IL 7/25-30/2004).

Original languageEnglish
Title of host publicationInternational Symposium on Combustion, Abstracts of Works-in-Progress Posters
Pages352
Number of pages1
Publication statusPublished - 2004
Externally publishedYes
Event30th International Symposium on Combustion, Abstracts of Works-in-Progress Poster Presentations - Chicago, IL, United States
Duration: 2004 Jul 252004 Jul 30

Other

Other30th International Symposium on Combustion, Abstracts of Works-in-Progress Poster Presentations
CountryUnited States
CityChicago, IL
Period04/7/2504/7/30

Fingerprint

Strain rate
Exhaust gases
Merging
Methane
Air

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Wada, T., Yokomori, T., & Mizomoto, M. (2004). Extinction of triple flames at counter-flow. In International Symposium on Combustion, Abstracts of Works-in-Progress Posters (pp. 352)

Extinction of triple flames at counter-flow. / Wada, T.; Yokomori, Takeshi; Mizomoto, M.

International Symposium on Combustion, Abstracts of Works-in-Progress Posters. 2004. p. 352.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wada, T, Yokomori, T & Mizomoto, M 2004, Extinction of triple flames at counter-flow. in International Symposium on Combustion, Abstracts of Works-in-Progress Posters. pp. 352, 30th International Symposium on Combustion, Abstracts of Works-in-Progress Poster Presentations, Chicago, IL, United States, 04/7/25.
Wada T, Yokomori T, Mizomoto M. Extinction of triple flames at counter-flow. In International Symposium on Combustion, Abstracts of Works-in-Progress Posters. 2004. p. 352
Wada, T. ; Yokomori, Takeshi ; Mizomoto, M. / Extinction of triple flames at counter-flow. International Symposium on Combustion, Abstracts of Works-in-Progress Posters. 2004. pp. 352
@inproceedings{2c7513231e6343f4ba938faf6cc8ca32,
title = "Extinction of triple flames at counter-flow",
abstract = "The details of how each premixed flame (PF) merges into the diffusion flame (DF) were presented, focusing on the extinction of triple flames, and compares the extinction with a pure premixed (twin flame) or pure diffusion flame using counter-flow. The triple flames were formed using different fuel concentration streams, i.e., equivalence ratios, composed of methane and dry air. At near extinction, quasi-single flame formed by the merging rich PF (RPF) and lean PF (LPF) was observed. The PPF had a higher maximum strain rates at extinction than the strain rates at extinction converge linearly. According to luminous intensity profile, intermediate product in the rich side of the flame might support reaction in the lean side where RPF merges into DF. As the equivalence ratios of the PPF and the mill flame move towards stoichiometric conditions, the maximum strain rates at extinction converged linearly. The width of the PPF at extinction was constant for all rich and lean stream combinations, indicating that unburnt fuel might exist in the exhaust gas, and shortages of the time to complete some elementally reactions affect this phenomenon. This is an abstract of a paper presented at the 30th International Symposium on combustion (Chicago, IL 7/25-30/2004).",
author = "T. Wada and Takeshi Yokomori and M. Mizomoto",
year = "2004",
language = "English",
pages = "352",
booktitle = "International Symposium on Combustion, Abstracts of Works-in-Progress Posters",

}

TY - GEN

T1 - Extinction of triple flames at counter-flow

AU - Wada, T.

AU - Yokomori, Takeshi

AU - Mizomoto, M.

PY - 2004

Y1 - 2004

N2 - The details of how each premixed flame (PF) merges into the diffusion flame (DF) were presented, focusing on the extinction of triple flames, and compares the extinction with a pure premixed (twin flame) or pure diffusion flame using counter-flow. The triple flames were formed using different fuel concentration streams, i.e., equivalence ratios, composed of methane and dry air. At near extinction, quasi-single flame formed by the merging rich PF (RPF) and lean PF (LPF) was observed. The PPF had a higher maximum strain rates at extinction than the strain rates at extinction converge linearly. According to luminous intensity profile, intermediate product in the rich side of the flame might support reaction in the lean side where RPF merges into DF. As the equivalence ratios of the PPF and the mill flame move towards stoichiometric conditions, the maximum strain rates at extinction converged linearly. The width of the PPF at extinction was constant for all rich and lean stream combinations, indicating that unburnt fuel might exist in the exhaust gas, and shortages of the time to complete some elementally reactions affect this phenomenon. This is an abstract of a paper presented at the 30th International Symposium on combustion (Chicago, IL 7/25-30/2004).

AB - The details of how each premixed flame (PF) merges into the diffusion flame (DF) were presented, focusing on the extinction of triple flames, and compares the extinction with a pure premixed (twin flame) or pure diffusion flame using counter-flow. The triple flames were formed using different fuel concentration streams, i.e., equivalence ratios, composed of methane and dry air. At near extinction, quasi-single flame formed by the merging rich PF (RPF) and lean PF (LPF) was observed. The PPF had a higher maximum strain rates at extinction than the strain rates at extinction converge linearly. According to luminous intensity profile, intermediate product in the rich side of the flame might support reaction in the lean side where RPF merges into DF. As the equivalence ratios of the PPF and the mill flame move towards stoichiometric conditions, the maximum strain rates at extinction converged linearly. The width of the PPF at extinction was constant for all rich and lean stream combinations, indicating that unburnt fuel might exist in the exhaust gas, and shortages of the time to complete some elementally reactions affect this phenomenon. This is an abstract of a paper presented at the 30th International Symposium on combustion (Chicago, IL 7/25-30/2004).

UR - http://www.scopus.com/inward/record.url?scp=10644285745&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10644285745&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:10644285745

SP - 352

BT - International Symposium on Combustion, Abstracts of Works-in-Progress Posters

ER -