한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제21권4호
  • /
  • Pages.106-112
  • /
  • 2013
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지
DOI QR코드

DOI QR Code

압축비 변화에 따른 HCNG 엔진의 배기 특성

Emission Characteristics of HCNG Engine with Compression Ratio Change

  • 이성원 (한국기계연구원 그린동력연구실) ;
  • 임기훈 (과학기술연합대학원대학교 환경에너지기계공학과) ;
  • 박철웅 (한국기계연구원 그린동력연구실) ;
  • 최영 (한국기계연구원 그린동력연구실) ;
  • 김창기 (한국기계연구원 그린동력연구실)
  • Lee, Sungwon (Department of Engine Research, Korea Institute of Machinery and Materials) ;
  • Lim, Gihun (Department of Environment & Energy Mechanical Engineering, University of Science and Technology) ;
  • Park, Cheolwoong (Department of Engine Research, Korea Institute of Machinery and Materials) ;
  • Choi, Young (Department of Engine Research, Korea Institute of Machinery and Materials) ;
  • Kim, Changgi (Department of Engine Research, Korea Institute of Machinery and Materials)
  • 투고 : 2012.08.13
  • 심사 : 2013.01.07
  • 발행 : 2013.07.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Compression ratio is an important factor affecting engine performance and emission characteristics since thermal efficiency of spark ignition engine can be theoretically improved by increasing compression ratio. In order to evaluate the effect of compression ratio change in HCNG engine, natural gas engine was employed using HCNG30 (CNG 70 vol%, hydrogen 30 vol%). Combustion and emission characteristics of CNG and HCNG fuel was analyzed with respect to the change of compression ratio at each operating condition. The results showed that thermal efficiency improved and $CH_4$, $CO_2$ emission decreased with the increase in compression ratio while $NO_x$ emissions were decreased at a certain excess air ratio condition. Higher thermal efficiency and further reduction of exhaust emissions can be achieved by the increase of compression ratio and the retard of spark timing.

키워드

참고문헌

  1. M. Ball and M. Wietschel, "The Future of Hydrogen-opportunities and Challenges," International Journal of Hydrogen Energy, Vol.34, Issue 2, pp.615-627, 2009. https://doi.org/10.1016/j.ijhydene.2008.11.014
  2. S. Shayegan, D. Hart, P. Pearson and D. Joffe, "Analysis of the Cost of Hydrogen Infrastructure for Buses in London," Journal of Power Sources, Vol.157, Issue 2, pp.862-874, 2006. https://doi.org/10.1016/j.jpowsour.2005.12.065
  3. M. Bysveen, "Engine Characteristics of Emissions and Performance using Mixture of Natural Gas and Hydrogen," Energy, Vol.32, Issue 4, pp.482-489, 2007. https://doi.org/10.1016/j.energy.2006.07.032
  4. C. W. Park, C. G. Kim, Y. Choi, S. Y. Won and S. Y. Lee, "A Study on the NOx Emission Characteristics of HCNG Engine," Transactions of KSAE, Vol.19, No.4, pp.78-83, 2011.
  5. C. G. Bauer and T. W. Forest, "Effect of Hydrogen Addition on the Performance of Methan-fueled Vehicle," International Journal of Hydrogen Energy, Vol.26, Issue 1, pp.55-70, 2001. https://doi.org/10.1016/S0360-3199(00)00067-7
  6. J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw-Hill, New York, 1988.
  7. X. Wang, H. Zhang, B. Yao, Y. Lei, X. Sun, D. Wang and Y. Ge, "Experimental Study on Factors Affecting Lean Combustion Limit of SI Engine Fueled with Compressed Natural Gas and Hydrogen Blends," Energy, Vol.38, Issue 1, pp.58-65, 2012. https://doi.org/10.1016/j.energy.2011.12.042
  8. O. Badr, N. Alsayed and M. Manaf, "A Parametric Study on the Lean Misfiring and Knocking Limis of Gas-fueled Spark Ignition Engine," Applied Thermal Engineering, Vol.18, Issue 7, pp.579-594, 1998. https://doi.org/10.1016/S1359-4311(97)00029-X
  9. R. C. Costa and J. R. Sodre, "Compression Ratio Effects on an Ethalnol/Gasoline Fuelled Engine Performance," Applied Thermal Engineering Vol.32, Issues 2-3, pp.278-283, 2011.