• 제목/요약/키워드: Flame nucleus formation

검색결과 1건 처리시간 0.013초

가솔린 기관(機關)의 혼합기(混合氣) 성분(成分)이 출력(出力)에 미치는 영향(影響) (점화지연(点火遲延) 및 연소(燃燒) 기간(期間)에 미치는 영향(影響)) (The Effect of Mixture Component in a Gasoline Engine on Output (The Effect of Ignition Delay and Combustion Period))

  • 송재익
    • 한국분무공학회지
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    • 제3권1호
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    • pp.19-26
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    • 1998
  • The effect of mixture component makes a nelay time and a long total combustion period $\tau_{p\;max}$. The flame propagation delay $\tau_{df}$ was determined by the record of current ion. The pressure release delay $\tau_{dp}$ and $\tau_{p\;max}$ were determined by the indicated pressure diagram in constant volume of the combustion chamber. The results are as follows: 1) The ignition delay $\tau_t$ time takes the minimum value around $\Phi=1.15$. 2) $\tau_{df}$ and $\tau_t$ time increased according to the increases of the concentrated dilution gases, because the adiabatic flame temperature decreased due to the increases of the heat capacity. But dilution gases have little effect on flame nucleus formation delay 3) The relation between $\tau_t$ time and reciprocal laminar burning velocity is almost linear. 4) The increase of the propagation length is accompanied with increased ratio of the $\tau_{df},\;\tau_{dp},\;\tau_{t},\;\tau_{p\;max}$.

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