Application of OH-PLIF measurements using OH(2,0) band excitations to high pressure H2/O2 jet diffusion flames

Kiyonori Takeuchi; Yoshio Nunome; Takeo Tomita; Taku Kudo; Akihiro Hayakawa; Hideaki Kobayashi

Application of OH-PLIF measurements using OH(2,0) band excitations to high pressure H₂/O₂ jet diffusion flames

Kiyonori Takeuchi, Yoshio Nunome, Takeo Tomita, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

Complex Flow Research Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

To realize OH-PLIF which can eliminate intense OH(0,0) band chemiluminescence in the rocket combustion, OH-PLIF measurements using OH(2,0) band excitation were conducted to observe OH fluorescence for H₂/O₂ jet diffusion flames at high pressure. In addition, reaction kinetics of excited species OH^∗ (denoted as OH at excited states) was modeled and the pressure dependence of OH^∗ mole concentration was simulated using H₂/O₂ opposed-flow flame model at high pressure. Experimental results showed that OH-PLIF measurements using OH(2,0) band excitation system can effectively eliminate the OH(0,0) band chemiluminescence and the OH(2,1) band fluorescence at high pressure conditions (∼ 2.54 MPa) can be collected. Moreover, pressure dependence of numerical simulated OH^∗ peak mole concentration corresponded qualitatively to that of OH(0,0) band peak radiance obtained by spectroscopic measurements. It is indicated that OH-PLIF measurement by the use of OH(1,0) band excitations is extremely difficult because chemiluminescence signal is too strong to detect the fluorescence signal. According to the experimental and numerical simulation results, the feasibility of OH(2,0) band excitation and necessity to eliminate OH chemiluminescence were suggested when the OH-PLIF measurement is applied to the rocket combustion.

Original language	English
Title of host publication	ASPACC 2015 - 10th Asia-Pacific Conference on Combustion
Publisher	Combustion Institute
Publication status	Published - 2015
Event	10th Asia-Pacific Conference on Combustion, ASPACC 2015 - Beijing, China Duration: 2015 Jul 19 → 2015 Jul 22

Other

Other	10th Asia-Pacific Conference on Combustion, ASPACC 2015
Country/Territory	China
City	Beijing
Period	15/7/19 → 15/7/22

ASJC Scopus subject areas

Energy Engineering and Power Technology
Fuel Technology
Chemical Engineering(all)
Condensed Matter Physics

Cite this

@inproceedings{03c82a1e66f34edaae29155b5fea8790,

title = "Application of OH-PLIF measurements using OH(2,0) band excitations to high pressure H2/O2 jet diffusion flames",

abstract = "To realize OH-PLIF which can eliminate intense OH(0,0) band chemiluminescence in the rocket combustion, OH-PLIF measurements using OH(2,0) band excitation were conducted to observe OH fluorescence for H2/O2 jet diffusion flames at high pressure. In addition, reaction kinetics of excited species OH∗ (denoted as OH at excited states) was modeled and the pressure dependence of OH∗ mole concentration was simulated using H2/O2 opposed-flow flame model at high pressure. Experimental results showed that OH-PLIF measurements using OH(2,0) band excitation system can effectively eliminate the OH(0,0) band chemiluminescence and the OH(2,1) band fluorescence at high pressure conditions (∼ 2.54 MPa) can be collected. Moreover, pressure dependence of numerical simulated OH∗ peak mole concentration corresponded qualitatively to that of OH(0,0) band peak radiance obtained by spectroscopic measurements. It is indicated that OH-PLIF measurement by the use of OH(1,0) band excitations is extremely difficult because chemiluminescence signal is too strong to detect the fluorescence signal. According to the experimental and numerical simulation results, the feasibility of OH(2,0) band excitation and necessity to eliminate OH chemiluminescence were suggested when the OH-PLIF measurement is applied to the rocket combustion.",

author = "Kiyonori Takeuchi and Yoshio Nunome and Takeo Tomita and Taku Kudo and Akihiro Hayakawa and Hideaki Kobayashi",

year = "2015",

language = "English",

booktitle = "ASPACC 2015 - 10th Asia-Pacific Conference on Combustion",

publisher = "Combustion Institute",

note = "10th Asia-Pacific Conference on Combustion, ASPACC 2015 ; Conference date: 19-07-2015 Through 22-07-2015",

}

TY - GEN

T1 - Application of OH-PLIF measurements using OH(2,0) band excitations to high pressure H2/O2 jet diffusion flames

AU - Takeuchi, Kiyonori

AU - Nunome, Yoshio

AU - Tomita, Takeo

AU - Kudo, Taku

AU - Hayakawa, Akihiro

AU - Kobayashi, Hideaki

PY - 2015

Y1 - 2015

N2 - To realize OH-PLIF which can eliminate intense OH(0,0) band chemiluminescence in the rocket combustion, OH-PLIF measurements using OH(2,0) band excitation were conducted to observe OH fluorescence for H2/O2 jet diffusion flames at high pressure. In addition, reaction kinetics of excited species OH∗ (denoted as OH at excited states) was modeled and the pressure dependence of OH∗ mole concentration was simulated using H2/O2 opposed-flow flame model at high pressure. Experimental results showed that OH-PLIF measurements using OH(2,0) band excitation system can effectively eliminate the OH(0,0) band chemiluminescence and the OH(2,1) band fluorescence at high pressure conditions (∼ 2.54 MPa) can be collected. Moreover, pressure dependence of numerical simulated OH∗ peak mole concentration corresponded qualitatively to that of OH(0,0) band peak radiance obtained by spectroscopic measurements. It is indicated that OH-PLIF measurement by the use of OH(1,0) band excitations is extremely difficult because chemiluminescence signal is too strong to detect the fluorescence signal. According to the experimental and numerical simulation results, the feasibility of OH(2,0) band excitation and necessity to eliminate OH chemiluminescence were suggested when the OH-PLIF measurement is applied to the rocket combustion.

AB - To realize OH-PLIF which can eliminate intense OH(0,0) band chemiluminescence in the rocket combustion, OH-PLIF measurements using OH(2,0) band excitation were conducted to observe OH fluorescence for H2/O2 jet diffusion flames at high pressure. In addition, reaction kinetics of excited species OH∗ (denoted as OH at excited states) was modeled and the pressure dependence of OH∗ mole concentration was simulated using H2/O2 opposed-flow flame model at high pressure. Experimental results showed that OH-PLIF measurements using OH(2,0) band excitation system can effectively eliminate the OH(0,0) band chemiluminescence and the OH(2,1) band fluorescence at high pressure conditions (∼ 2.54 MPa) can be collected. Moreover, pressure dependence of numerical simulated OH∗ peak mole concentration corresponded qualitatively to that of OH(0,0) band peak radiance obtained by spectroscopic measurements. It is indicated that OH-PLIF measurement by the use of OH(1,0) band excitations is extremely difficult because chemiluminescence signal is too strong to detect the fluorescence signal. According to the experimental and numerical simulation results, the feasibility of OH(2,0) band excitation and necessity to eliminate OH chemiluminescence were suggested when the OH-PLIF measurement is applied to the rocket combustion.

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M3 - Conference contribution

AN - SCOPUS:84947219396

BT - ASPACC 2015 - 10th Asia-Pacific Conference on Combustion

PB - Combustion Institute

T2 - 10th Asia-Pacific Conference on Combustion, ASPACC 2015

Y2 - 19 July 2015 through 22 July 2015

ER -

Application of OH-PLIF measurements using OH(2,0) band excitations to high pressure H₂/O₂ jet diffusion flames

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