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Experimental Evaluation of SI Engine Operation Supplemented by Hydrogen Rich Gas from a Compact Plasma Boosted Reformer
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 19, 2000 by SAE International in United States
Annotation ability available
Event: Government/Industry Meeting
It is well known that hydrogen addition to spark-ignited (SI) engines can reduce exhaust emissions and increase efficiency. Micro plasmatron fuel converters can be used for onboard generation of hydrogen-rich gas by partial oxidation of a wide range of fuels. These plasma-boosted microreformers are compact, rugged, and provide rapid response. With hydrogen supplement to the main fuel, SI engines can run very lean resulting in a large reduction in nitrogen oxides (NOx) emissions relative to stoichiometric combustion without a catalytic converter. This paper presents experimental results from a microplasmatron fuel converter operating under variable oxygen to carbon ratios. Tests have also been carried out to evaluate the effect of the addition of a microplasmatron fuel converter generated gas in a 1995 2.3-L four-cylinder SI production engine. The tests were performed with and without hydrogen-rich gas produced by the plasma boosted fuel converter with gasoline. A one hundred fold reduction in NOx due to very lean operation was obtained under certain conditions. An advantage of onboard plasma- boosted generation of hydrogen-rich gas is that it is used only when required and can be readily turned on and off. Substantial NOx reduction should also be obtainable by heavy exhaust gas recirculation (EGR) facilitated by use of hydrogen-rich gas with stoichiometric operation.
- J. B. Green - Oak Ridge National Lab.
- N. Domingo - Oak Ridge National Lab.
- J. M. E. Storey - Oak Ridge National Lab.
- R. M. Wagner - Oak Ridge National Lab.
- J. S. Armfield - Oak Ridge National Lab.
- L. Bromberg - MIT Plasma Science and Fusion Center
- D. R. Cohn - MIT Plasma Science and Fusion Center
- A. Rabinovich - MIT Plasma Science and Fusion Center
- N. Alexeev - MIT Plasma Science and Fusion Center
CitationGreen, J., Domingo, N., Storey, J., Wagner, R. et al., "Experimental Evaluation of SI Engine Operation Supplemented by Hydrogen Rich Gas from a Compact Plasma Boosted Reformer," SAE Technical Paper 2000-01-2206, 2000, https://doi.org/10.4271/2000-01-2206.
- Heywood, John B., Internal Combustion Engine Fundamentals, McGraw Hill, 1988.
- Breshears, R., Cotrill, H. and Rupe, T., Partial Hydrogen Injection into Internal Combustion Engines Proc EPA 1st Symp on Low Pollution Power Systems Development, Ann Arbor, MI Oct (1973).
- MacDonald, J.S., Evaluation of the Hydrogen-Supplemented Fuel Concept with and Experimental Multicylinder Engine, SAE Paper 760101 (1976).
- Homan H.S. et al., The Effect of Fuel Injection on NOx Emissions and Undesirable Combustion of Hydrogen Fueled Piston Engines, Int J of Hydrogen Ener 8 (1983).
- Kuroda, H., Nakajima, Y., Sugihara, K, Takagi, Y. and Muranaka, S. The Fast Burn with Heavy EGR, New Approach for Low NOx and Improved Fuel Economy, Society for Automotive Engineers, Paper 780006 (1979).
- Rabinovich A., Cohn D.R. and Bromberg L., Plasmatron Internal Combustion Engine System for Vehicle Pollution Reduction Int J. Vehicle Design 15 234 (1995).
- Cohn D.R., Rabinovich A. and Titus C. H., Onboard Plasmatron Operation Generation of Hydrogen for Extremely Low Emission Vehicles with Internal Combustion Engines, Int. J. Vehicle Design 17550 (1996).
- Cohn D.R., Rabinovich A., Titus C.H. and Bromberg L., Near Term Possibilities for Extremely Low Emission Vehicles using On-Board Plasmatron Generation of Hydrogen, Int. J Hydrogen Ener 22 715 (1997).
- Bromberg L., Cohn D.R., Rabinovich A., Surma J.E., Virden J., Compact Plasmatron-Boosted Hydrogen Generation Technology for Vehicular Applications, J. Hydrogen Energy 24 341 (1999).
- Kirwan J.E., Quader A. and Grieve M.J., Advanced Engine Management Using On-Board Gasoline Partial Oxidation Reforming for Meeting Super-ULEV (SU-LEV) Emissions Standards, SAE Paper 1999-01-2927 (1999).
- Smith A. and Bartley G.J.J., Stoichiometric Operation of a Gas Engine Utilizing Synthesis Gas and EGR for NOx Control, ASME ICE- 29-3, Engine Combustion Performance and Emission (1997).
- Dobrot Isherwood K., Linna J.R. and Loftus P.J., Using Onboard Fuel Reforming by Partial Oxidation to Improve SI Engine Cold-Start Performance and Emissions, SAE Paper 980939 (1998).
- Hodgson J. W., Irick D.K., and Whalen M.V., Improving the cold-start performance of alcohol-fueled engines using a rich combustor, SAE Paper 981359 (1998).
- Rudiak, E.M., Rabinovich A., and Tul N.A., USSR Patent 700935, Aug. (1979).