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Computational Study of Reactivity Controlled Compression Ignition (RCCI) Combustion in a Heavy-Duty Diesel Engine Using Natural Gas
Technical Paper
2014-01-1321
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Reactivity controlled compression ignition (RCCI) combustion employs two fuels with a large difference in auto-ignition properties that are injected at different times to generate a spatial gradient of fuel-air mixtures and reactivity. Researchers have shown that RCCI offers improved fuel efficiency and lower NOx and Soot exhaust emissions when compared to conventional diesel diffusion combustion. The majority of previous research work has been focused on premixed gasoline or ethanol for the low reactivity fuel and diesel for the high reactivity fuel.
The increased availability of natural gas (NG) in the U.S. has renewed interest in the application of compressed natural gas (CNG) to heavy-duty (HD) diesel engines in order to realize fuel cost savings and reduce pollutant emissions, while increasing fuel economy. Thus, RCCI using CNG and diesel fuel warrants consideration. A computational study was performed on a 15L HD diesel engine to examine trade-offs of pollutant emissions, fuel consumption, peak cylinder pressure and maximum cylinder pressure rise rate. The results from the model indicated that an RCCI combustion strategy had the potential of 17.5% NOx reduction, 78% soot reduction and a 24% decrease in fuel consumption when compared to a conventional diesel combustion strategy using the same air-fuel ratio (AFR) and exhaust gas recirculation (EGR) rate, at the rated power operating condition. This was attained while meeting peak cylinder pressure and maximum cylinder pressure rise rate constraints.
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Zoldak, P., Sobiesiak, A., Bergin, M., and Wickman, D., "Computational Study of Reactivity Controlled Compression Ignition (RCCI) Combustion in a Heavy-Duty Diesel Engine Using Natural Gas," SAE Technical Paper 2014-01-1321, 2014, https://doi.org/10.4271/2014-01-1321.Also In
References
- de Ojeda , W. , Zoldak , P. , Espinosa , R. , and Kumar , R. Development of a Fuel Injection Strategy for Diesel LTC SAE Technical Paper 2008-01-0057 2008 10.4271/2008-01-0057
- de Ojeda , W. , Zoldak , P. , Espinosa , R. , and Kumar , R. Development of a Fuel Injection Strategy for Partially Premixed Compression Ignition Combustion SAE Int. J. Engines 2 1 1473 1488 2009 10.4271/2009-01-1527
- Zoldak , P. , de Boer , C. , and Shetty , S. Transonic Combustion - Supercritical Gasoline Combustion Operating Range Extension for Low Emissions and High Thermal Efficiency SAE Technical Paper 2012-01-0702 2012 10.4271/2012-01-0702
- Inagaki , K. , Fuyuto , T. , Nishikawa , K. , Nakakita , K. et al. Dual-Fuel PCI Combustion Controlled by In-Cylinder Stratification of Ignitability SAE Technical Paper 2006-01-0028 2006 10.4271/2006-01-0028
- 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
- Hanson , R. , Kokjohn , S. , Splitter , D. , and Reitz , R. An Experimental Investigation of Fuel Reactivity Controlled PCCI Combustion in a Heavy-Duty Engine SAE Int. J. Engines 3 1 700 716 2010 10.4271/2010-01-0864
- Splitter , D. , Reitz , R. , and Hanson , R. High Efficiency, Low Emissions RCCI Combustion by Use of a Fuel Additive SAE Int. J. Fuels Lubr. 3 2 742 756 2010 10.4271/2010-01-2167
- Splitter , D. , Hanson , R. , Kokjohn , S. , and Reitz , R. Reactivity Controlled Compression Ignition (RCCI) Heavy-Duty Engine Operation at Mid-and High-Loads with Conventional and Alternative Fuels SAE Technical Paper 2011-01-0363 2011 10.4271/2011-01-0363
- Zhang , Y. , De Ojeda , W. , and Wickman , D. Computational Study of Combustion Optimization in a Heavy-Duty Diesel Engine Using In-Cylinder Blending of Gasoline and Diesel Fuels SAE Technical Paper 2012-01-1977 2012 10.4271/2012-01-1977
- Zhang , Y. , Sagalovich , I. , De Ojeda , W. , Ickes , A. et al. Development of Dual-Fuel Low Temperature Combustion Strategy in a Multi-Cylinder Heavy-Duty Compression Ignition Engine Using Conventional and Alternative Fuels SAE Int. J. Engines 6 3 1481 1489 2013 10.4271/2013-01-2422
- Prikhodko , V. , Curran , S. , Barone , T. , Lewis , S. et al. Emission Characteristics of a Diesel Engine Operating with In-Cylinder Gasoline and Diesel Fuel Blending SAE Int. J. Fuels Lubr. 3 2 946 955 2010 10.4271/2010-01-2266
- Nieman , D. , Dempsey , A. , and Reitz , R. Heavy-Duty RCCI Operation Using Natural Gas and Diesel SAE Int. J. Engines 5 2 270 285 2012 10.4271/2012-01-0379
- Hodgins , K. , Hill , P. , Ouellette , P. , and Hung , P. Directly Injected Natural Gas Fueling of Diesel Engines SAE Technical Paper 961671 1996 10.4271/961671
- Amsden , A.A. KIVA-3V, Release 2, improvements to KIVA-3V Los Alamos National Laboratory Report No. LA-13608-MS
- Abani , N. , Kokjohn , S. , Park , S. , Bergin , M. et al. An Improved Spray Model for Reducing Numerical Parameter Dependencies in Diesel Engine CFD Simulations SAE Technical Paper 2008-01-0970 2008 10.4271/2008-01-0970
- Abani , N. , Munnannur , A. and Reitz , R.D. Reduction of Numerical Parameter Dependencies in Diesel Spray Models ASME Internal Combustion Engine Division 2007 Fall Technical Conference 130 3 2008
- Beale , J.C. and Reitz , R.D. Modeling Spray Atomization with the Kelvin-Helmholtz/Rayleigh-Taylor Hybrid Model Atomization and Sprays 9 623 650 1999
- Han , Z. and Reitz , R.D. Turbulence Modeling of Internal Combustion Engines Using RNG K-ε Models Combustion Science and Technology 106 1995
- Ra , Y. and Reitz , R.D. The Application of a Multi-Component Droplet Vaporization Model to DI Gasoline Engines International Journal of Engine Research 4 193 218 2003
- Patel , A. , Kong , S. , and Reitz , R. Development and Validation of a Reduced Reaction Mechanism for HCCI Engine Simulations SAE Technical Paper 2004-01-0558 2004 10.4271/2004-01-0558
- Hiroyasu , H. and Kadota , T. Models for Combustion and Formation of Nitric Oxide and Soot in Direct Injection Diesel Engines SAE Technical Paper 760129 1976 10.4271/760129
- Sun , Y. Diesel Combustion Optimization and Emissions Reduction Using Adaptive Injection Strategies (AIS) with Improved Numerical Models xix 202 University of Wisconsin--Madison 2007
- Abani , N. , Munnannur , A. and Reitz , R.D. Reduction of Numerical Parameter Dependencies in Diesel Spray Models ASME Internal Combustion Engine Division 2007 Fall Technical Conference 2007
- O'Rourke , P. and Amsden , A. A Particle Numerical Model for Wall Film Dynamics in Port-Injected Engines SAE Technical Paper 961961 1996 10.4271/961961
- O'Rourke , P. and Amsden , A. A Spray/Wall Interaction Submodel for the KIVA-3 Wall Film Model SAE Technical Paper 2000-01-0271 2000 10.4271/2000-01-0271
- EPA Website Heavy-Duty Highway Compression-Ignition Engines And Urban Buses -- Exhaust Emission Standards http://www.epa.gov/otaq/standards/heavyduty/hdci-exhaust.htm Jan. 2014
- Akihama , K. , Takatori , Y. , Inagaki , K. , Sasaki , S. et al. Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature SAE Technical Paper 2001-01-0655 2001 10.4271/2001-01-0655