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

The Korean Society of Mechanical Engineers (대한기계학회)
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Reduced Chemical Kinetic Mechanism for Premixed CO/H2/Air Flames

[ CO/H2/Air ] 예혼합 화염에 대한 준총괄 화학반응 메커니즘

  • 장경 (국립안동대학교 기계공학과 대학원) ;
  • 차동진 (한밭대학교 건축설비공학과) ;
  • 주용진 (한전전력연구원) ;
  • 이기용 (국립안동대학교 기계공학부)
  • Published : 2008.02.05
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Abstract

A reduced chemical kinetic mechanism is developed in order to predict the flame phenomena in premixed $CO/H_2/Air$ flames at atmospheric pressure, aimed at studying the coal gas combustion for the IGCC applications. The reduced mechanism is systematically derived from a full chemical kinetic mechanism involving 11 reacting species and 66 elementary reactions. This mechanism consists of four global steps, and is capable of explicitly calculating the concentration of 7 non-steady species and implicitly predicting the concentration of 3 steady state species. The fuel blend contains two fuels with distinct thermochemical properties, whose contribution to the radical pool in the flame is different. The flame speeds predicted by the reduced mechanism are in good agreement with those by the full mechanism and experimental results. In addition, the concentration profiles of species and temperature are also in good agreement with those by the full mechanism.

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References

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