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

  • 제20권6호
  • /
  • Pages.464-470
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  • 2009
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

밸브 타이밍 지각과 과급에 의한 흡기관 분사식 수소기관의 고성능 실현

The Realization of High Performance in a Hydrogen-Fueled Engine with External Mixture by Retarding Valve Timing and Super Charging

  • 발행 : 2009.12.30
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초록

In order to analysis the possibility of high expansion and performance without backfire in a hydrogenfueled engine using external mixture injection, combustion characteristics and performance enhancement were analyzed in terms of retarding valve timing and increasing the boosting pressure. As the results, it was found that thermal efficiency increased by retarding intake valve timing with the same level of supplied energy is over 6.6% by the effect of high expansion including effect of combustion enhancement due to supercharging. It was also shown that the achievement of high power (equal to that of a gasoline engine), low brake specific fuel consumption and low emission (NOx of less than 16 ppm) without backfire in a hydrogen-fueled engine is possible around a boosting pressure of 1.5 bar, intake valve opening time of TDC and $\Phi$=0.35 in fuel-air equivalence ratio.

키워드

참고문헌

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