Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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The Characteristics of Backfire for 2 stroke Free-Piston Hydrogen Fueled Engine with Uni-flow Scavenging

Uni-flow 소기방식 2행정 프리피스톤 수소기관의 스트로크변화에 따른 역화 특성

  • Published : 2009.10.31
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Abstract

Backfire characteristics for hydrogen fueled free piston engine with uni-flow scavenging is investigated with different stroke, exhaust vlave openning timing and fuel-air equivalence ratio by using RICEM (Rapid Intake Compression Expansion Machine) for combustion research of free piston engine. As results, it is found that backfire can be occurred due to slow combustion of unhomogeneous mixture in the piston crevice volume or/and in the cylinder near piston head. And the more stroke of free piston H2 engine with uni-flow scavenging is short the more opening timing of exhaust valve have to be advanced to control backfire.

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References

  1. Peter A. J. Achten, 'A Review of Free Piston Engine Concepts', SAE 941776, 1994
  2. Norman H. Beachley and Frank J. Fronczak, 'Design of a Free-Piston Engine-Pump', SAE 921740, 1992
  3. P. V. Blarigan, N. Pradiso and S. Goldsborough, 'Homogeneous Charge Compression Ignition with Free Piston: A New Approach to Ideal Otto Cycle Performance', SAE 980204
  4. 고대권, 최재성, '저속 2행정 디젤 기관의 소기특성에 관한 연구', 한국박용기관학회지 제19권 3호, 1995, pp. 202-210
  5. 윤재성, 조형욱, 이종태, 이용균, '프리피스톤리니어 동력시스템의 루프소기성능 향상을 위한 유동해석', 한국수소 및 신에너지학회 논문집 제19권 제2호, 2008.04, pp. 139-144
  6. 조형욱, 윤재성, 이종태, 임희수, 'PIV를 이용한 Uni-flow소기방식 프리피스톤 수소기관의 실린더내 유동가시화', 한국수소 및 신에너지학회논문집 제19권 제3호, 2008.06, pp.182-188
  7. Blair, G. P., 'The Basic Design of Two-Stroke Engines', SAE, Warendale, PA, 1990
  8. G. P., Blair, 'Correlation of Theory and Experiment for Scavenging Flow in Two-Stroke Cycle Engine', SAE Paper NO.88125, 1988
  9. 조형욱, 윤재성, 이종태, ‘Uni-flow 소기방식 2행정 프리피스톤 수소기관의 역화발생’, 대한기계학회 2008 에너지 및 동력공학부분 춘계학술대회, 2008, pp. 44-49