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Effects of Alternative Fuels and Intake Port Geometry on HSDI Diesel Engine Performance and Emissions
Technical Paper
2001-01-0647
ISSN: 0148-7191, e-ISSN: 2688-3627
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Event:
SAE 2001 World Congress
Language:
English
Abstract
This research explored methods to reduce regulated emissions in a small-bore, direct-injection diesel engine. Swirl was used to influence mixing of the spray plumes, and alternative fuels were used to study the effects of oxygenated and water microemulsion diesel fuels on emissions. Air/fuel mixing enhancement was achieved in the running engine by blocking off a percentage of one of the two intake ports. The swirl was characterized at steady-state conditions with a flowbench and swirl meter. Swirl ratios of 1.85, 2.70, and 3.29 were studied in the engine tests at full load with engine speeds of 1303, 1757, and 1906 rev/min. Increased swirl was shown to have negative effects on emissions due to plume-to-plume interactions.
Blends of No. 2 diesel and biodiesel were used to investigate the presence of oxygen in the fuel and its effects on regulated emissions. Pure No. 2 diesel fuel, a 15% and a 30% biodiesel blend (by weight) were used. The effects were investigated at full load with engine speeds of 1303 and 1757 rev/min and a swirl ratio of 1.85. The results showed that the particulate emissions were reduced significantly with the use of oxygen in the fuel. A study was also performed using a water-diesel microemulsion fuel to assess the potential for additional NOx reduction of advanced fuels compared to a California Reference diesel fuel. The microemulsion contained 10% by volume, 20-30 nm diameter water droplets, and was run at part and full loads at 1757 rev/min. The results overall showed great reductions in regulated emissions, indicating that this new fuel concept holds significant promise for future applications.
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Citation
Corgard, D. and Reitz, R., "Effects of Alternative Fuels and Intake Port Geometry on HSDI Diesel Engine Performance and Emissions," SAE Technical Paper 2001-01-0647, 2001, https://doi.org/10.4271/2001-01-0647.Also In
References
- Krieger, R. B. Siewert, R. M. Pinson, J. A. Gallopoulos, N. E. Hilden, D. L Monroe, D. R. Rask, R. B. Solomon, A. S. P. Zima, P. “Diesel Engines: One Option to Power Future Personal Transportation Vehicles” SAE Paper 972683 1997
- Tennison, P.J. Reitz, R.D. “The effects of Common Rail Injection parameters on Emissions and Performance of a HSDI diesel engine,” ASME Transactions Journal of Gas Turbines and Power 2000
- Thiel, M. Personal Communication University of Wisconsin-Madison 1998
- Stone, C. R. Ladommatos, N. “The Measurement and Analysis of Swirl in Steady Flow” SAE Paper 921642 1992
- Kang, K.Y. Reitz, R..D. “Intake Flow Structure and Swirl Generation in a Four-Valve Diesel Engine,” Journal of Engineering for Gas Turbines and Power, Transactions of the ASME 2000
- Monaghan, M. L. Pettifer, H. F. “Air Motion and Its Effect on Diesel Performance and Emissions” SAE Paper 810255 1981
- Choi, C. Y. “Experiments and Modeling of Fuel Composition Effects on Diesel Engine Performance and Emissions” University of Wisconsin-Madison 1998
- González D. M. A. Private Communication, PDVSA Intevep Caracas, Venezuela 1999
- Montgomery, D.T. Reitz, R.D. “Six-mode Cycle Evaluation of the Effect of EGR and Multiple Injections on Particulate and NOx Emissions from a D.I. Diesel Engine,” SAE Paper 960316 , SAE Transactions Vol. 105 Section 3 Journal of Engines 356 373 1996
- Coghe, A. Brunello, G. Tassi, E. “Effects of Intake Ports on the In-Cylinder Air Motion under Steady Flow Conditions” SAE Paper 880384 1988
- Corgard, D. D. “Effects of Alternative Fuels and Intake Port Geometry on High-Speed, Direct-Injection, Diesel Engine Performance and Emissions” University of Wisconsin-Madison 2000
- Rubino, L. Thomson, M. J. “The Effect of Oxygenated Additives on Soot Precursor Formation in a Counterflow Diffusion Flame” SAE Paper 1999-01-3589 1999
- Batchelor, G. K. “An Introduction to Fluid Dynamics” Cambridge University Press London 1970