This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Load Limits with Fuel Effects of a Premixed Diesel Combustion Mode
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 15, 2009 by SAE International in United States
Annotation ability available
Premixed diesel combustion is intended to supplant conventional combustion in the light to mid load range. This paper demonstrates the operating load limits, limiting criteria, and load-based emissions behavior of a direct-injection, diesel-fueled, premixed combustion mode across a range of test fuels. Testing was conducted on a modern single-cylinder engine fueled with a range of ultra-low sulfur fuels with cetane number ranging from 42 to 53. Operating limits were defined on the basis of emissions, noise, and combustion stability. The emissions behavior and operating limits of the tested premixed combustion mode are independent of fuel cetane number. Combustion stability, along with CO and HC emissions levels, dictate the light load limit. The high load limit is solely dictated by equivalence ratio: high PM, CO, and HC emissions result as overall equivalence ratio approaches stoichiometric.
CitationIckes, A., Assanis, D., and Bohac, S., "Load Limits with Fuel Effects of a Premixed Diesel Combustion Mode," SAE Technical Paper 2009-01-1972, 2009, https://doi.org/10.4271/2009-01-1972.
- Milovanovic, N., Chen, R. A review of experimental and simulation studies on controlled auto-ignition combustion. Society of Automotive Engineers Paper 2001-01-1890. 2001.
- Neely, G., Sasaki, S., Leet, J. Experimental investigation of PCCI-DI combustion on emissions in a light-duty diesel engine. Society of Automotive Engineers Paper 2004-01-0121. 2004.
- Akagawa, H., Miyamoto, T., Harada, A., Sasaki, S., Shimazaki, N., Hashizume, T., Tsujimura, K. Approaches to solve problems of the premixed lean diesel combustion. Society of Automotive Engineers Paper 1999-01-0183. 1999.
- Lechner, G., Jacobs, T., Chryssakis, C., Assanis, D., and Siewert, R. Evaluation of a narrow spray cone angle, advanced injection timing strategy to achieve partially premixed compression ignition combustion in a diesel engine. Society of Automotive Engineers Paper 2005-01-0167. 2005.
- Takeda, Y., Keiichi, N., Keiichi, N. Emissions characteristics of premixed lean diesel combustion with extremely early staged fuel injection. Society of Automotive Engineers Paper 961163. 1996.
- Knafl, A., Jacobs, T., Bohac, S., and Assanis, D. The load limits of low temperature premixed diesel combustion. ISCE 2006, 2nd International Symposium on “Clean and High-Efficiency Combustion in Engines”. 2006.
- Pinchon, P., Walter, B., Réviellé, B., Miche, M. New concepts for diesel combustion. Proceedings of the Conference on Thermo and Fluid Dynamic Processes in Diesel Engines (THIESEL 2004). 2004. pp. 395–414.
- Jacobs, T., Knafl, A., Bohac, S., and Assanis, D. The development of throttled and unthrottled PCI combustion in a light-duty diesel engine. Society of Automotive Engineers Paper 2006-01-0202. 2006.
- Knafl, A., Han, M., Bohac, S., Assanis, D., Szymkowicz, P. Comparison of diesel oxidation catalyst performance on an engine and a gas flow reactor. Society of Automotive Engineers Paper 2007-01-0231. 2007.
- Northrop, W., Jacobs, T., Assanis, D., and Bohac, S. Deactivation of a diesel oxidation catalyst due to exhaust species from rich premixed diesel compression ignition combustion in a light-duty diesel engine. International Journal of Engine Research. 8(6). 2007. pp. 487–498.
- Han, M., Assanis, D., Jacobs, T., and Bohac, S. Method and detailed analysis of individual hydrocarbon species from diesel combustion modes and diesel oxidation catalyst. Journal of Engineering for Gas Turbines and Power. 130(4). 2008.
- Busch, S., Bohac, S., and Assanis, D. A study of the transition between lean conventional diesel combustion and lean, premixed, low-temperature diesel combustion. Journal of Engineering for Gas Turbines and Power. 130(5). 2008.
- Stivender, D. Development of a fuel-based mass emission measurement procedure. Society of Automotive Engineers Paper 710604. 1971.
- Ickes, A., Bohac, S., Assanis, D. Effect of fuel cetane number on a premixed combustion mode. International Journal of Engine Research. Submitted.
- Gatowski, J., Balles, E., Chun, K., Nelson, F., Ekchian, J., and Heywood, J. Heat release analysis of engine pressure data. Society of Automotive Engineers Paper 841359. 1984.
- Yun, H. and Mirsky, W. Schlieren-streak measurements of instantaneous exhaust gas velocities from a spark-ignition engine. Society of Automotive Engineers Paper 741015. 1974.
- Hohenberg, G. Advanced approaches for heat transfer calculations. Society of Automotive Engineers Paper 790825. 1979.
- Figliola, R. and Beasley, D. Theory and Design for Mechanical Measurements. Third Edition. John Wiley & Sons. New York. 2000.
- Khan, I., Greeves, G, Wang, C. Factors affecting smoke and gaseous emissions from direct injection engines and a method of calculation. Society of Automotive Engineers Paper 730169. 1973.
- Dec, J. A conceptual model of DI diesel combustion based on laser-sheet imaging. Society of Automotive Engineers Paper 970873. 1997.
- Kook, S., Bae, C., Miles, P., Choi, D., Pickett, L. The influence of charge dilution and injection timing on low-temperature diesel combustion and emissions. Society of Automotive Engineers Paper 2005-01-3837. 2005.
- Alkidas, A. Effects of injector tip configuration on the performance and emissions of an uncooled diesel. Society of Automotive Engineers Paper 881613. 1988.
- Khan, I., Wang, C., Langridge, B. Effect of air swirl on smoke and gaseous emissions from direct-injection diesel engines. Society of Automotive Engineers Paper 720102. 1972.
- Williams, T., Tindal, M. Gas flow studies in direct injection diesel engines with re-entrant combustion chambers. Society of Automotive Engineers Paper 800027. 1980.
- Akira, H., Akiyoshi, M., Yasuo, A., Yuzo, A. Combustion and emission characteristics of supercharged premixed DI diesel engine. Transactions of the Japan Society of Mechanical Engineers. B. 67(657). pp. 1282–1288. 2001.