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NO concentrations in laminar premixed CH4/O2/N2 flames with varying equivalence ratio

Abstract

Number density and concentration of nitric oxide have been investigated in laminar premixed CH4/O2/N2 flames using laser-induced fluorescence technique. Emphasis was placed on quantitative measurements, which were taken in flames at various equivalence ratios ranging from 0.9 ∼ 3.0. The flow rate was fixed at 2 SLPM. The NO A-X (0,0) vibrational band around 226 nm was excited using a XeCl excimer-pumped dye laser. By selecting an appropriate NO transition, the interferences from elastic scattering and O2 fluorescence were minimized. Results show that the maximum NO concentration increased at the range of equivalence ratio from ϕ = 0.9 to 1.6, decreased from ϕ = 1.6 to 2.0 and slowly increased with increasing equivalence ratio above ϕ = 2.0. Also, the maximum NO concentration was at around the reaction zone.

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References

  1. [1]

    A. C. Eckbreth, Laser diagnostics for combustion temperature and species, Abacus Press, Kent, UK (1988).

    Google Scholar 

  2. [2]

    M. Chou, A. M. Dean and D. Stern, Laser-induced fluorescence measurements of NO in NH3/O2 and CH4/air flames, Journal of Chemical Physics, 78 (1983) 5962–5970.

    Article  Google Scholar 

  3. [3]

    R. Honig, G. Kappler, P. Andersen and N. Brehm, Multi species detection in a liquid fueled model combustor using tunable excimer lasers, Combustion Science and Technology, 102 (1994) 255–272.

    Article  Google Scholar 

  4. [4]

    A. M. Wodtke, L. Huwel, H. Schluter, G. Meijer, P. Andersen and H. Voges, High sensitivity detection of NO in a flame using a tunable ArF laser, Optics Letters, 13 (1988) 910–912.

    Article  Google Scholar 

  5. [5]

    S. H. Jin, S. W. Kim, K. S. Park and G. S. Kim, A study on measurement of NO concentrations in laminar no-premixed H2/N2 flame using LIF, Trans. Of The Korean Hydrogen and New Energy Society, 13(4) (2002) 279–286.

    Google Scholar 

  6. [6]

    S. W. Kim, S. H. Jin, K. S. Park and G. S. Kim, A study on measurement of NO concentrations in laminar nonpremixed H2/N2 flame by LIF, Proc. of the 22 nd KOSCO Symposium, (2001) 133–138.

    Google Scholar 

  7. [7]

    S. W. Kim, S. H. Jin, K. S. Park and G. S. Kim, Quantitative measurements of NO concentrations in laminar premixed CH4/O2/N2 flames by LIF, The 5 th KSME-JSME Thermal Engineering Conference, Kobe, Japan (2000) 3-73–78.

    Google Scholar 

  8. [8]

    I. J. Wysong, J. B. Jeffries and D. R. Crosley, Laser-induced fluorescence of O(3p3P), O2, and NO near 226nm: photolytic interferences and simultaneous excitation in flames, Optics Letters, 14 (1989) 767–769.

    Article  Google Scholar 

  9. [9]

    W. P. Partridge, M. S. Klassen, D. D. Thomsen and N. M. Laurendeau, Experimental assessment of O2 interferences on laser-induced fluorescence measurements of NO in high-pressure, lean premixed flames by use of narrow-band and broadband detection, Applied Optics, 34 (1996) 4890–4904.

    Article  Google Scholar 

  10. [10]

    B. E. Battles and R. K. Hanson, Laser-induced fluorescence measurements of NO and OH mole fraction in fuel-lean, high-pressure (1-10atm) methane flames: fluorescence modeling and experimental validation, Journal of Quantitative Spectroscopy and Radiative Transfer, 54 (1995) 521–537.

    Article  Google Scholar 

  11. [11]

    J. W. Daily, Laser-induced fluorescence spectroscopy in flames, Progress in Energy and Combustion Science, 23 (1997) 133–199.

    Article  Google Scholar 

  12. [12]

    D. D. Thomsen, F. F. Kuligowski and N. M. Laurendeau, Background corrections for laser-induced fluorescence measurements of nitric oxide in lean high-pressure, premixed methane flames, Applied Optics, 36 (1997) 3244–3252.

    Article  Google Scholar 

  13. [13]

    J. R. Reisel and N. M. Laurendeau, Quantitative LIF measurements and modeling of nitric oxide in high-pressure C2H2/O2/N2 flames, Combustion and Flame, 101 (1995) 141–152.

    Article  Google Scholar 

  14. [14]

    J. Luque and D. R. Crosley, LIFBASE: Database and Simulation Program, ver. 1.6, SRI International Report MP, 99-009 (1999).

    Google Scholar 

  15. [15]

    W. G. Bessler, C. Schulz, T. Lee, D. I. Shin, M. Hofmann, J. B. Jeffries, J. Wolfrum and R. K. Hanson, Quantitative NO-LIF imaging in high-pressure flames, Appl. Phys. B, 75 (2002) 97–102.

    Article  Google Scholar 

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Correspondence to Kyoung-Suk Park.

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Recommended by Editor Oh Chae Kwon

Seong-Ho Jin received his Ph.D. degree from Kyung Hee University, Korea in 1999. Dr. Jin is currently a Senior Lecturer in the School of Engineering at University of Lincoln, UK. His research interests include combustion, laserbased combustion diagnostics and its application to internal combustion engine and gas turbine.

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Jin, SH., Shim, BJ., Kim, SW. et al. NO concentrations in laminar premixed CH4/O2/N2 flames with varying equivalence ratio. J Mech Sci Technol 27, 2209–2215 (2013). https://doi.org/10.1007/s12206-013-0602-0

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Keywords

  • Nitric oxide (NO)
  • Laser-induced fluorescence (LIF)
  • Laminar premixed flame
  • Equivalence ratio