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Effects of Premixed Low Temperature Combustion of Fuel Blends with High Resistance to Auto-ignition on Performances and Emissions in a High Speed Diesel Engine
Technical Paper
2011-24-0049
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper reports results of an experimental investigation to demonstrate the potential to employ blends of fuels having low cetane numbers that can provide high resistance to auto-ignition to reduce simultaneously NOx and smoke. Because of the higher resistance to auto-ignition, blends of diesel and gasoline at different volume fraction may provide more time for the mixture preparation by increasing the ignition delay. The result produces the potential to operate under partially premixed low temperature combustion with lower levels of EGR without excessive penalties on fuel efficiency. In addition to the diesel fuel, the tested blends were mixed by the baseline diesel with 20% and 40% of commercial EURO IV 98 octane gasoline by volume, denoted G20 and G40.
The experimental activity has been performed on a turbocharged, water cooled, DI diesel engine, equipped with a common rail injection system. The engine equipment includes an exhaust gas recirculation system controlled by an external driver, a piezo-quartz pressure transducer to detect the in-cylinder pressure signal and a current probe to acquire the energizing current to the injectors. Engine tests have been carried out at the engine speeds of 2500 rpm and a BMEP of 0.8 MPa exploring the effect of the start of injection, exhaust gas recirculation, injection pressure on combustion behavior and engine out emissions.
The main results of the investigation have provided to realize a premixed low temperature combustion by the management of EGR rate, injection pressure and the longer ignition delay induced jointly by the higher resistance to auto ignition of fuel blends and their higher volatility. Results of smoke emissions have been cut down to zero for G20 and G40 blends at moderate level of injection pressure and oxygen concentration at the intake.
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Valentino, G., Corcione, F., Iannuzzi, S., and Serra, S., "Effects of Premixed Low Temperature Combustion of Fuel Blends with High Resistance to Auto-ignition on Performances and Emissions in a High Speed Diesel Engine," SAE Technical Paper 2011-24-0049, 2011, https://doi.org/10.4271/2011-24-0049.Also In
References
- Kimura, S., Aoki, O., Kitahara, Y., and Aiyoshizawa, E., “Ultra-Clean Combustion Technology Combining a Low-Temperature and Premixed Combustion Concept for Meeting Future Emission Standards,” SAE Technical Paper 2001-01-0200, 2001, doi:10.4271/2001-01-0200.
- Kimura, S., Aoki, O., Ogawa, H., Muranaka, S. et al., “New Combustion Concept for Ultra-Clean and High-Efficiency Small DI Diesel Engines,” SAE Technical Paper 1999-01-3681, 1999, doi:10.4271/1999-01-3681.
- Koci, C., Ra, Y., Krieger, R., Andrie, M. et al., “Detailed Unburned Hydrocarbon Investigations in a Highly-Dilute Diesel Low Temperature Combustion Regime,” SAE Int. J. Engines 2(1):858-879, 2009, doi:10.4271/2009-01-0928.
- Kook, S., Bae, C., Miles, P., Choi, D. et al., “The Influence of Charge Dilution and Injection Timing on Low-Temperature Diesel Combustion and Emissions,” SAE Technical Paper 2005-01-3837, 2005, doi:10.4271/2005-01-3837.
- Kamimoto, T. and Bae, M., “High Combustion Temperature for the Reduction of Particulate in Diesel Engines,” SAE Technical Paper 880423, 1988, doi: 10.4271/880423.
- 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, doi:10.4271/2001-01-0655.
- Hanson, R., Splitter, D., and Reitz, R., “Operating a Heavy-Duty Direct-Injection Compression-Ignition Engine with Gasoline for Low Emissions,” SAE Technical Paper 2009-01-1442, 2009, doi:10.4271/2009-01-1442.
- Kalghatgi, G., “Auto-Ignition Quality of Practical Fuels and Implications for Fuel Requirements of Future SI and HCCI Engines,” SAE Technical Paper 2005-01-0239, 2005, doi:10.4271/2005-01-0239.
- Kalghatgi, G., Risberg, P., and Ångström, H., “Advantages of Fuels with High Resistance to Auto-ignition in Late-injection, Low-temperature, Compression Ignition Combustion,” SAE Technical Paper 2006-01-3385, 2006, doi:10.4271/2006-01-3385.
- Kalghatgi, G., Risberg, P., and Ångström, H., “Partially Pre-Mixed Auto-Ignition of Gasoline to Attain Low Smoke and Low NOx at High Load in a Compression Ignition Engine and Comparison with a Diesel Fuel,” SAE Technical Paper 2007-01-0006, 2007, doi:10.4271/2007-01-0006.
- Kalghatgi, G., Hildingsson, L. and Johansson, B., “Low NOx and Low Smoke Operation of a Diesel Engine using Gasoline-like Fuels”, ASME Paper # ICES2009-76034.
- Manente, V., Johansson, B., and Tunestal, P., “Partially Premixed Combustion at High Load using Gasoline and Ethanol, a Comparison with Diesel,” SAE Technical Paper 2009-01-0944, 2009, doi:10.4271/2009-01-0944.
- Manente, V., Johansson, B., Tunestal, P., and Cannella, W., “Effects of Different Type of Gasoline Fuels on Heavy Duty Partially Premixed Combustion,” SAE Int. J. Engines 2(2):71-88, 2010, doi:10.4271/2009-01-2668.
- Manente, V., Tunestal, P., Johansson, B., and Cannella, W., “Effects of Ethanol and Different Type of Gasoline Fuels on Partially Premixed Combustion from Low to High Load,” SAE Technical Paper 2010-01-0871, 2010, doi:10.4271/2010-01-0871.
- Manente, V., Zander, C., Johansson, B., Tunestal, P. et al., “An Advanced Internal Combustion Engine Concept for Low Emissions and High Efficiency from Idle to Max Load Using Gasoline Partially Premixed Combustion,” SAE Technical Paper 2010-01-2198, 2010, doi:10.4271/2010-01-2198.
- Lewander, C., Johansson, B., and Tunestal, P., “Extending the Operating Region of Multi-Cylinder Partially Premixed Combustion using High Octane Number Fuel,” SAE Technical Paper 2011-01-1394, 2011, doi:10.4271/2011-01-1394.
- 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, doi:10.4271/2009-01-2647.
- Curran, S., Prikhodko, V., Cho, K., Sluder, C. et al., “In-Cylinder Fuel Blending of Gasoline/Diesel for Improved Efficiency and Lowest Possible Emissions on a Multi-Cylinder Light-Duty Diesel Engine,” SAE Technical Paper 2010-01-2206, 2010, doi:10.4271/2010-01-2206.
- Han, D., Ickes, A. M., Bohac, S. V., Huang, Z. Assanis, D. N. “Premixed low-temperature combustion of blends of diesel and gasoline in a high speed compression ignition engine” Energy Fuels, 2010, 24 (6), pp 3517-3525, 2010.
- Corcione, F.E. Iannuzzi, S., Marchitto, L., Merola, S.S., Valentino, G., “Evaluation of Soot and Flame Lift-off Length in a High Swirl Optically Accessed Diesel Engine”, Engine Combustion Process, Current Problems and Modern Techniques (Xth Congress), Munich, Germany, 2011.