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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Numerical Analysis of Chemical Characteristics of Homogeneous CO/H2/NO in Pressurized Oxy-Fuel Combustion

가압순산소 연소 조건에서 균일 CO/H2/NO의 화학적 특성에 관한 해석 연구

  • 김동희 (한국생산기술연구원) ;
  • 안형준 (포항산업과학연구원 에너지환경연구소) ;
  • 허강열 (포항공과대학교 기계공학과) ;
  • 이영재 (한국생산기술연구원)
  • Received : 2019.07.30
  • Accepted : 2019.08.31
  • Published : 2019.08.31
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Abstract

This study was performed by the numerical approach to investigate chemical behaviors of homogeneous syngas ($CO/H_2$) with nitric monoxide (NO) in pressurized oxy-fuel conditions. Hydrogen had a dominant effect to the ignition delay time of syngas due to the fast chemistry of its oxidation. Combustion was promoted by NO at the low temperature region. It was by the additional heat release through NO oxidation and production and consumption of major radicals related to the ignition. Two stage ignition behavior was shown in the pressurized condition by the accumulation of $H_2O_2$ produced from $HO_2$ radical. Additional NO oxidation was induced by the pressurized oxy-fuel condition to produce $NO_2$.

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References

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