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

The Korean Society of Mechanical Engineers (대한기계학회)
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Combustion Characteristics of a Turbulent Diffusion Flat Flame According to Oxygen Enriched Concentration of Combustion Air

연소공기의 산소부화농도에 따른 난류확산 평면화염의 연소특성

  • 곽지현 (한국화재보험협회 방재시험연구원) ;
  • 전충환 (부산대학교 공과대학 기계기술연구소) ;
  • 장영준 (부산대학교 공과대학 기계공학부)
  • Published : 2004.03.01
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Abstract

Combustion using oxygen enriched air is an energy saving technology that can increase thermal efficiency by improving the burning rate and by increasing the flame temperature. Flame figures, OH radical intensities, temperature distributions and emissions concentration were examined according to oxygen enriched concentration(OEC) in a turbulent diffusion flat flame. As long as the oxygen enriched concentration was increased, the length and volume of the flat flame was decreased while OH radical intensity was raised and the flame temperature was increased. However, RMS of the fluctuating temperature was decreased, and more homogeneous temperature field was formed. Thermal NO also was increased with increase of oxygen enriched concentration, but CO was decreased due to the increase of chemical reaction rate.

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References

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