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

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publicationASPACC 2015 - 10th Asia-Pacific Conference on Combustion
PublisherCombustion Institute
Publication statusPublished - 2015
Event10th Asia-Pacific Conference on Combustion, ASPACC 2015 - Beijing, China
Duration: 2015 Jul 192015 Jul 22

Other

Other10th Asia-Pacific Conference on Combustion, ASPACC 2015
CountryChina
CityBeijing
Period15/7/1915/7/22

ASJC Scopus subject areas

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

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