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

The Korean Society of Mechanical Engineers (대한기계학회)
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Effect of Flame Interaction on the NO Emission

다수 상호작용 화염의 공해배출물 특성

  • 김진현 (한국기계연구원 복합재료그룹) ;
  • 이병준 (영남대학교 기계공학부)
  • Published : 2005.06.01
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Abstract

It has been reported that the interacting multiple jet flames of propane fuel are not extinguished even at the choking velocity at the nozzle exit if eight small nozzles are arranged along the imaginary circle of $40{\sim}72$ times the diameter of single nozzle. In this research, experiments were conducted to know the NO and CO emission characteristics of the interacting flames. Measurements along the centerline of the flame revealed that decrease in CO concentration was followed by the NO decrease and $O_2$ increase. It was found that interacting flame emitted less NO than that of similar area single jet flame. Also, NO emission of partially premixed interacting flame was decreased up to $17\%$ of that of non-premixed multiple jet flame. Though the mechanism of the NO reduction was not clear from this experiment, it's been shown that partially premixed multiple jet flames could be used to achieve clean and highly stable combustion.

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References

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Cited by

  1. Effect of Lean-rich Fuel Staging to the Multiple Jet Flames on the Blowout Velocity vol.32, pp.1, 2008, https://doi.org/10.3795/KSME-B.2008.32.1.007