Quantitative OH-LIPF measurements in high pressure methane flames

Tony Yuan; Chih Chung Lu; Yu Hsuan Lai

Quantitative OH-LIPF measurements in high pressure methane flames

Tony Yuan, Chih Chung Lu, Yu Hsuan Lai

Institute of Civil Aviation

Research output: Contribution to conference › Paper › peer-review

Abstract

Quantitative analysis of OH concentrations by LIPF and temperature measurements by thermocouple were conducted in laminar premixed CH₄/air flames at 1-5 atm. The OH concentrations measured by LIPF for different flames and their calibration curves at different pressures were established. The nearest measuring position was 1 mm downstream of burner surface. The uncertainties in concentration and position measurements were ± 13% and ± 0.5 mm, respectively. The computed OH concentrations were systematically overestimated near the reaction zone. For flames at 1 atm, the overestimation of the OH concentrations was near 95% and more than three-fold and 5-atm flames. The overestimation might be caused by the misinterpretation of the peak flame temperature by given-temperature mode and/or over predicting of the preheating time by the flame simulation. Original is an abstract.

Original language	English
Number of pages	1
Publication status	Published - 2002 Dec 1
Event	29th International Symposium on Combustion - Sapporo, Japan Duration: 2002 Jul 21 → 2002 Jul 26

Other

Other	29th International Symposium on Combustion
Country/Territory	Japan
City	Sapporo
Period	02-07-21 → 02-07-26

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "Quantitative OH-LIPF measurements in high pressure methane flames",

abstract = "Quantitative analysis of OH concentrations by LIPF and temperature measurements by thermocouple were conducted in laminar premixed CH4/air flames at 1-5 atm. The OH concentrations measured by LIPF for different flames and their calibration curves at different pressures were established. The nearest measuring position was 1 mm downstream of burner surface. The uncertainties in concentration and position measurements were ± 13% and ± 0.5 mm, respectively. The computed OH concentrations were systematically overestimated near the reaction zone. For flames at 1 atm, the overestimation of the OH concentrations was near 95% and more than three-fold and 5-atm flames. The overestimation might be caused by the misinterpretation of the peak flame temperature by given-temperature mode and/or over predicting of the preheating time by the flame simulation. Original is an abstract.",

author = "Tony Yuan and Lu, {Chih Chung} and Lai, {Yu Hsuan}",

year = "2002",

month = dec,

day = "1",

language = "English",

note = "29th International Symposium on Combustion ; Conference date: 21-07-2002 Through 26-07-2002",

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TY - CONF

T1 - Quantitative OH-LIPF measurements in high pressure methane flames

AU - Yuan, Tony

AU - Lu, Chih Chung

AU - Lai, Yu Hsuan

PY - 2002/12/1

Y1 - 2002/12/1

N2 - Quantitative analysis of OH concentrations by LIPF and temperature measurements by thermocouple were conducted in laminar premixed CH4/air flames at 1-5 atm. The OH concentrations measured by LIPF for different flames and their calibration curves at different pressures were established. The nearest measuring position was 1 mm downstream of burner surface. The uncertainties in concentration and position measurements were ± 13% and ± 0.5 mm, respectively. The computed OH concentrations were systematically overestimated near the reaction zone. For flames at 1 atm, the overestimation of the OH concentrations was near 95% and more than three-fold and 5-atm flames. The overestimation might be caused by the misinterpretation of the peak flame temperature by given-temperature mode and/or over predicting of the preheating time by the flame simulation. Original is an abstract.

AB - Quantitative analysis of OH concentrations by LIPF and temperature measurements by thermocouple were conducted in laminar premixed CH4/air flames at 1-5 atm. The OH concentrations measured by LIPF for different flames and their calibration curves at different pressures were established. The nearest measuring position was 1 mm downstream of burner surface. The uncertainties in concentration and position measurements were ± 13% and ± 0.5 mm, respectively. The computed OH concentrations were systematically overestimated near the reaction zone. For flames at 1 atm, the overestimation of the OH concentrations was near 95% and more than three-fold and 5-atm flames. The overestimation might be caused by the misinterpretation of the peak flame temperature by given-temperature mode and/or over predicting of the preheating time by the flame simulation. Original is an abstract.

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UR - http://www.scopus.com/inward/citedby.url?scp=0036939605&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0036939605

T2 - 29th International Symposium on Combustion

Y2 - 21 July 2002 through 26 July 2002

ER -

Quantitative OH-LIPF measurements in high pressure methane flames

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