메탄-수소-공기 예혼합기의 연소특성(II)

Combustion Characteristics of Methane-Hydrogen-Air Premixture(II)

  • 김봉석 (국립원주전문대학 자동차과) ;
  • 이영재 (한국에너지기술연구소 수송기술연구팀)
  • 발행 : 1996.05.01

초록

The present work is a continuation of our previous study to investigate the effects of parameters such as equivalence ratio, hydrogen supplement rate and initial pressure on combustion characteristics in a disk-shaped constant volume combustion chamber. The main results obtained from the study can be summarized as follows. The flames in near stoichiometric mixture of methane-air are propagated with a spherical shape, but in excess rich or lean mixtures are propagated with a elliptical shape. And, they are changed to an unstable elliptical shape flame with very regular cells by increasing the hydrogen supplement rate. Also, flame is sluggishly propagated at increased initial pressure in combustion chamber. Volume fraction of burned gas and flame radius as the combustion characteristics are increased by increasing the hydrogen supplement rate, especially at the combustion middle period, but then are slowly increased by increasing the initial pressure.

키워드

참고문헌

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