Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Lifted Flame Structure with Strain Rates in Premixed Impinging Jet Flames of Syngas (H2/CO)

합성가스(H2/CO) 예혼합 충돌 제트화염에서 신장률에 따른 부상된 화염 구조에 관한 연구

  • SIM, KEUNSEON (School of Mechanical and Aerospace Engineering, Sunchon National University) ;
  • JANG, BYOUNGLOK (R&D Center, SAC Co., Ltd.) ;
  • LEE, KEEMAN (School of Mechanical and Aerospace Engineering, Sunchon National University)
  • 심근선 (순천대학교 기계.우주항공공학부) ;
  • 장병록 ((주)에스에이씨 기술연구소) ;
  • 이기만 (순천대학교 기계.우주항공공학부)
  • Received : 2015.08.04
  • Accepted : 2015.08.30
  • Published : 2015.08.30
Download PDF
⟨ Previous Next ⟩

Abstract

A study has been conducted numerically to investigate the lifted flat syngas flame structure of impinging jet flame configuration with the global strain rates in 10% hydrogen content. In this study, the effects of strain rate were major parameters on chemistry kinetics and flame structure at stagnation point. The numerical results were calculated by SPIN application of the CHEMKIN package. The strain rates were adjusted with Reynolds numbers of premixed syngas-air mixture. Different flame shapes were observed with different strain rates. As strain rate has increased, the flame temperature and axial velocity have been decreased due to the flame heat loss increment, and the OH radical reaction zones become narrower but each mole fractions are still constant. Also, the reversion of $H_2O$ product near stagnation point has been found out when strain rate has increased. This phenomenon is attributed to the rapid production of oxidizing radical reaction such as the R12 ($H+O_2(+M)=HO_2(+M)$), which makes the R18 ($HO_2+OH=O_2+H_2O$) reaction increment.

Keywords

References

  1. T. K. Kim, J. Park, and H. C. Cho, "Study on Combustion Characteristics of $H_2$/CO Synthetic Gas", Journal of the Environmental Sciences, Vol. 17, No. 6, 2008, pp. 689-698. https://doi.org/10.5322/JES.2008.17.6.689
  2. Hugo. J. Burbano, Jhon Pareja, Andres A. Amell, "Laminar burning velocities and flame stability analysis of $H_2$/CO/air mixtures with dilution of $N_2$ and $CO_2$", International Journal of Hydrogen energy, Vol. 36, 2011, pp. 3232-3242. https://doi.org/10.1016/j.ijhydene.2010.11.089
  3. J. Natarajan, S. Nandula, T. Lieuwen, and J. Seitzman, "Laminar Flame Speeds of Synthetic Gas Fuel Mixtures", ASME Turbo Expo 2005, No. GT2005-68917, pp. 677-686.
  4. J. Y. Park, K. M. Lee, and C. H. Hwang, "Stability Characteristics of Syngas ($H_2$/CO)/Air Premixed Flames using an Impinging Jet Burner", The Korean Soc. of Combust., Vol. 16, No. 1, 2011, pp. 15-21.
  5. K. J. Kang, T. J. Part, C. H. Whang, and K. M. Lee, "Study on Combustion Characteristics of Synthetic Gas Air Lifted Premixed Flames with High Strain Rate in an Impinging Jet Combustion Field", The Korean Soc. of Combust., Vol. 16, No. 4, 2011, pp. 31-37.
  6. B. G. Jeong, Y. H. Lee, and K. M. Lee, "A Study on Combustion and Heat Transfer in Premixed Impinging Flames of Syngas ($H_2$/CO)/Air Part I: Characteristics of Combustion", Trans. of the Korean Hydrogen and New Energy Society, Vol. 25, No. 1, 2014, pp. 47-58. https://doi.org/10.7316/KHNES.2014.25.1.047
  7. K. S. Sim, B. G. Jeong, Y. H. Lee, and K. M. Lee, "A Study on Combustion and Heat Transfer in Premixed Impinging Flames of Syngas ($H_2$/CO)/Air Part II: Heat Transfer Characteristics", Trans. of the Korean Hydrogen and New Energy Society, 2014, Vol. 25, No. 1, pp. 59-71. https://doi.org/10.7316/KHNES.2014.25.1.059
  8. M. E. Coltrin, R. J. Kee, G. H. Evans, E. Meeks, F. M. Rupley, and J. F. Grear, "Spin(Version 3.83): A Fortran Program for Modeling One-Dimensional Rotating Disk/Stagnation Flow Chemical Vapor Deposition Reactor", Sandia National Lab., 1991.
  9. Neal Sullivan, Melvyn C. Branch, Mark Strobel, John Park, Michael Ulsh and Beth Leys, "The Effects of an Impingement Surface and Quenching on the Structure of Laminar Premixed Flames", Combust. Sci. and Tech., 2000, Vol. 158, pp. 115-134. https://doi.org/10.1080/00102200008947330
  10. R. J. Kee, F. M. Rupley, and J. A. Miller, "CHEMKIN-II: A Fortran Chemical Kinetics Package for the Analysis of Gas-Phase Chemical Kinetics", Sandia National Laboratories Report, SAND89-8009 1989.
  11. Kee, R. J., Dixon Lewis, Warnatz. G. J, Conltrin. M. E and Miller J. A, "A Fortran Computer Code Package for the Evaluation of Gas-Phase Multi Component Transport", Sandia National Laboratory Report, SAND86-8246, 1986.
  12. M. E. Coltrin, R. J. Kee, and F. M. Rupley, "SURFACE CHEMKIN (Version 3.7): A Fortran Package for Analyzing Heterogenous Chemical Kinetics at a Solid Surface Gas Phase Interface", Sandia National Laboratory Report, SAND90-8003, 1990.
  13. J. F. Grcar, "The Twopnt Program for Boundary Value Problems", SAND91-8230, 1991.

Cited by

  1. /CO) vol.27, pp.2, 2016, https://doi.org/10.7316/KHNES.2016.27.2.220