This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Dual-Fuel Effects on HCCI Operating Range: Experiments with Primary Reference Fuels
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 08, 2013 by SAE International in United States
Annotation ability available
Results from a large set of HCCI experiments performed on a single-cylinder research engine fueled with different mixtures of iso-octane and n-heptane are presented and discussed in this paper. The experiments are designed to scrutinize fuel reactivity effects on the operating range of an HCCI engine. The fuel effects on upper and lower operating limits are measured respectively by the maximum pressure rise rate inside the cylinder and the stability of engine operation as determined by cycle-to-cycle variations in IMEP. Another set of experiments that examine the intake air heating effects on HCCI engine performance, exhaust emissions and operating envelopes is also presented. The effects of fuel reactivity and intake air heating on the HCCI ranges are demonstrated by constructing the operating envelopes for the different test fuels and intake temperatures. The paper discusses, in the light of the results, how the nonlinearity in fuel effects makes the dual fuel control approach less effective in extending the lower end of the HCCI load range. It also discusses how intake air heating affects the engine operation stability at low loads, and how varying fuel reactivity and intake heating can complement each other as an integrated control approach to extend both ends of the HCCI load range.
CitationAldawood, A., Mosbach, S., Kraft, M., and Amer, A., "Dual-Fuel Effects on HCCI Operating Range: Experiments with Primary Reference Fuels," SAE Technical Paper 2013-01-1673, 2013, https://doi.org/10.4271/2013-01-1673.
- Olsson , J. , Tunestål , P. , and Johansson , B. Closed-Loop Control of an HCCI Engine SAE Technical Paper 2001-01-1031 2001 10.4271/2001-01-1031
- Lü , X. , Chen , W. , Hou , Y. , and Huang , Z. Study on the Ignition, Combustion and Emissions of HCCI Combustion Engines Fueled With Primary Reference Fuels SAE Technical Paper 2005-01-0155 2005 10.4271/2005-01-0155
- Atkins M. and Koch C. The effect of fuel octane and dilutent on homogeneous charge compression ignition combustion Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering May 1 2005 219 5 665 675 10.1243/095440705X11202
- Ogura , T. , Angelos , J. , Green , W. , Cheng , W. et al. Primary Reference Fuel Behavior in a HCCI Engine near the Low-Load Limit SAE Int. J. Fuels Lubr. 1 1 1098 1109 2009 10.4271/2008-01-1667
- Xingcai L. , Yuchun H. , Linlin Z. , and Zhen H. Experimental study on the auto-ignition and combustion characteristics in the homogeneous charge compression ignition (HCCI) combustion operation with ethanol/n-heptane blend fuels by port injection Fuel 85 2622 2631 2006 10.1016/j.fuel.2006.05.003
- Ma J. , Lü X. , Ji L. , and Huang Z. An experimental study of HCCI-DI combustion and emissions in a diesel engine with dual fuel International Journal of Thermal Sciences 47 1235 1242 2008 10.1016/j.ijthermalsci.2007.10.007
- Kokjohn , S. , Hanson , R. , Splitter , D. , and Reitz , R. Experiments and Modeling of Dual-Fuel HCCI and PCCI Combustion Using In-Cylinder Fuel Blending SAE Int. J. Engines 2 2 24 39 2010 10.4271/2009-01-2647
- Cha J. , Kwon S. , and Park S. An experimental and modelling study of the combustion and emission characteristics for gasoline-diesel dual-fuel engines Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering June 2011 225 6 801 812 10.1177/0954407011399825
- Aldawood , A. , Mosbach , S. , Kraft , M. , and Amer , A. Multi-Objective Optimization of a Kinetics-Based HCCI Model Using Engine Data SAE Technical Paper 2011-01-1783 2011 10.4271/2011-01-1783
- Aldawood , A. , Mosbach , S. , and Kraft , M. HCCI Combustion Control Using Dual-Fuel Approach: Experimental and Modeling Investigations SAE Technical Paper 2012-01-1117 2012 10.4271/2012-01-1117