Facilitation of HCCI combustion of biogas at moderate compression ratios by application of fuel reforming and inlet air heating

• Autorzy: Wyszynski M. L. , Megaritis A. , Karlovsky J. , Yap D. , Peucheret S. , Lehrle R. S. , Xu H. , Golunski S.
• Języki publikacji: EN

Abstrakty

EN

The HCCI shows large benefits in NOx emissions and fuel economy, but is difficult to achieve and control in engines with moderate compression ratios when natural gas and particularly biogas are used as fuel. It has been shown in literature that the addition of hydrogen translates into the lowering of the auto-ignition temperature during the combustion stroke. A major efforts is being devoted to developing further the fuel reforming technology which facilitates the auto-ignition of hydrocarbon fuels in Homogeneous Charge Compression Ignition engines. The fuel used in this study was simulated biogas which contained 67% CH4 and 33% CO2 by volume. Investigations were made into HCCI feasibility using inlet heating alone, HCCI feasibility using inlet heating and addition of simulated reformed fuel, feasibility of H2 production using fuel reforming and a full closed loop test including on-line H2 production. All HCCI results were compared to spark ignition baseline results. HCCI combustion for biogas shows significant improvement in NOx emissions and efficiency over SI combustion. However, it is difficult to achieve with biogas and was only stable with both reformed fuel addition and intensive inlet heating.

Słowa kluczowe

EN

HCCI; CAI; biogas; natural gas; hydrogen; exhaust gas fuel reforming

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2004
• Tom: Vol. 11, No. 3-4
• Strony: 347--356
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Wyszynski M. L.

autor

Megaritis A.

• Future Power Systems Group The University of Birmingham, Mechanical Engineering, Birmingham B15 2TT, UK

autor

Karlovsky J.

• Future Power Systems Group The University of Birmingham, Mechanical Engineering, Birmingham B15 2TT, UK

autor

Yap D.

• Future Power Systems Group The University of Birmingham, Mechanical Engineering, Birmingham B15 2TT, UK

autor

Peucheret S.

• Future Power Systems Group The University of Birmingham, Mechanical Engineering, Birmingham B15 2TT, UK

autor

Lehrle R. S.

• Future Power Systems Group, The University of Birmingham

autor

Xu H.

• Jaguar Cars (Coventry CV3 2AF, UK

autor

Golunski S.

• Johnson Matt hey Technology Centre (Reading RG4 9NH, UK)

Bibliografia

• [1] Allenby S, Chang W-C, Megaritis A, Wyszyński M.L, 2001, Hydrogen enrichment: a way to maintain combustion stability in a natural gas fuelled engine with exhaust gas
• recirculation, the potential of fuel reforming, Proceedings of the IMechE, Part D: Jour¬nal of Automobile Engineering, ISSN 0954/4070, Vol. 215 (2001), Part D, pp.405-418 (paper D04400).
• [2] Christensen M., Johansson B., Einewall P. (1997): “Homogeneous charge compression ignition (HCCI) using iso-octane, ethanol and natural gas - a comparison with spark ig¬nition operation”, SAE Paper No. 972824.
• [3] Christensen M., Hultqvist A., and Johansson B., "Demonstrating the Multi Fuel Capability of a Homogeneous Charge Compression Ignition Engine with Variable Compres¬sion Ratio", SAE Paper 1999-01-3679, 1999.
• [4] Olsson J.O, Tunestal P., Johansson B., Fiveland S., Agama R., Willi M., and Assanis D. (2002): “Compression ratio influence on maximum load of a natural gas fueled HCCI engine”, SAE Paper No 2002-01-0111
• [5] Onishi S., Hong Jo S., Shoda K., Do Jo P., Kato S., Active Thermo-atmosphere combustion (ATAC) - A New Combustion Process for Internal Combustion Engines, SAE 790501.
• [6] Peucheret S., Wyszynski M.L., 2004, Exhaust gas reforming of methane to aid natural gas HCCI combustion: experimental results of open loop hydrogen production, ASME conference ESDA2004, Manchester, July 19-22 2004, ESDA2004-58270
• [7] Xu H., Wilson T., Richardson S., Wyszynski M.L., Megaritis A., Yap D., Golunski S., James D., Extension of the Boundary of HCCI Combustion Using Fuel Reforming Technology, JSAE paper 20045468, Japanese SAE Congress, Yokohama 11 -19 May 2004