Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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The Effect of HCl on the NOx Reduction in $H_2/HCl/Air$ Premixed Flame

$H_2/HCl/Air$ 예혼합 화염에서 NOx 저감을 위한 HCl의 효과

  • 이기용 (안동대 기계공학부) ;
  • 권영석 (안동대학교 대학원 기계공학과) ;
  • 신성수 (안동대학교 대학원 기계공학과)
  • Published : 2003.04.23
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Abstract

Numerical simulations of freely propagating flames burning $H_2/HCl/Air$ mixtures are performed at atmospheric pressure in order to understand the effect of HCl on the NOx reduction. A chemical kinetic mechanism is developed, which involves 26 gas-phase species and 99 reactions. Under several equivalence ratios the flame speeds are calculated and compared with those obtained from the experiments, the results of which is in good agreement. As HCl is added into $H_2/Air$ flame as additive, its chemical effect causes the reduction of radicals (H, OH, and O), and then the decrease of the net rate of NO production. It is found that the chemical effect of additive has much more influence on the reduction of EINO than its physical effect.

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