Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Measurement of Soot Nano-Particle Using LIIM(Laser-Induced Ion Mobility)

LIIM(Laser-Induced Ion Mobility) 계측을 이용한 매연 나노입자 측정

  • 이의주 (한국건설기술연구원 화재 및 설비부)
  • Published : 2004.09.01
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Abstract

Experimental measurements of laser-induced ion mobility(LIIM) were performed for ethene/air premixed flames operated near the soot inception point. Soot was ionized using a pulsed laser operated at 532 nm. The ionization signal was collected with a tungsten electrode located in the post-flame region. ionization signals were collected using both a single electrode and dual electrode configuration. Prior LIIM studies have focused on the use of a single biased electrode to generate the electric field, with the burner head serving as the path to ground. In many practical combustion systems, a path to ground is not readily available. To apply the LIIM diagnostic to these geometries, a dual electrode geometry must be employed. The influence of electrode configuration, flame equivalence ratio, and flame height on ionization signal detection was determined. The efficacy of the LIIM diagnostic to detect soot inception in the post-flame region of a premixed flame using a dual electrode configuration was investigated. For the different dual electrode configurations tested, the dual parallel electrode geometry was observed to be most sensitive to detect the soot inception point in a premixed flame.

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References

  1. Glassman, I., 1988, 'Soot Formation in Combustion Process,' Proc. Comb. Inst., Vol. 22, pp. 295-311
  2. Richter, H. and Howard, J. B., 2000, 'Formation of Polycyclic Aromatic Hydrocarbons and Their Growth to Soot - A Review of Chemical Reaction Pathways,' Proc. Comb. Inst., Vol. 26, pp. 565-608 https://doi.org/10.1016/S0360-1285(00)00009-5
  3. Kennedy, I. M., 1997, 'Models of Soot Formation and Oxidization,' Prog. Energy Combust. Sci., Vol. 23, pp. 95-132 https://doi.org/10.1016/S0360-1285(97)00007-5
  4. Smyth, K. C. and Mallard, W. G., 1981, 'Laser-Induced Ionization and Mobility Measurements of Very Small Particles in Premixed Flames at the Sooting Limit,' Comb. Sci. and Tech., Vol. 26, pp. 35-41 https://doi.org/10.1080/00102208108946944
  5. Mallard, W. G. and Smyth, K. C., 1982, 'Mobility Measurements of Atomic Ions in Flames Using Laser-Enhanced Ionization,' Comb. Flame, Vol. 44, pp. 61-70 https://doi.org/10.1016/0010-2180(82)90063-3
  6. Smyth, K. C., Miller, J. H., Dorfman, R. C., Mallard, W. G. and Santoro, R. J., 1985, 'Soot Inception in a Methane/Air Diffusion Flame as Characterized by Detailed Species Profiles,' Comb. Flame, Vol. 62, pp. 157-181 https://doi.org/10.1016/0010-2180(85)90143-9
  7. Pearse, R. W. B. and Gaydon, A. G., 1976, The Identification of Molecular Spectra, Fourth Edition, Chapman and Hall, London
  8. Incropera, F. P. and Dewitt, D. P., 1985, Fundamentals of Heat and Mass Transfer, John Wiley & Sons, New York
  9. Shaddix, C. R., 1999, 'Correcting Thermocouple Measurements for Radiation Loss: A Critical Review,' Thirty-Third National Heat Transfer Conference, New Mexico
  10. Travis, J. C. and Turk, G. C., 1996, Laser-Enhanced Ionization Spectrometry, John Wiley & Sons, New York
  11. Revercomb, H. E. and Mason, E. A., 1975, 'Theory of Plasma Chromatography/Gaseous Electrophoresis - A Review,' Anal. Chem., Vol. 47, pp. 970-983 https://doi.org/10.1021/ac60357a043
  12. Smyth, K. C. and Tjossem, P. J. H, 1990, 'Relative H-atom and O-Atom Concentration Measurements in a Laminar, Methane/Air Diffusion Flame,' Proc. Comb. Inst., Vol. 23, pp. 1829-1837
  13. Karasek, F. W., Kilpatrick, W. D. and Cohen, M. J., 1971, 'Qualitatively Studies of Trace Constituents by Plasma Chromatography,' Anal. Chem., Vol. 43, pp. 1441-1447 https://doi.org/10.1021/ac60305a025
  14. Anal. Chem. v.43 Qualitatively Studies of Trace Constituents by Plasma Chromatography Karasek, F. W.;Kilpatrick, W. D.;Cohen, M. J. https://doi.org/10.1021/ac60305a025