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Dynamometer Testing of an Ethanol-Water Fueled Transit Van
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 24, 2005 by SAE International in United States
Annotation ability available
Previous research using catalytic igniters and ethanol water fueled mixtures has shown potential for lowering CO and NOx emissions while increasing engine efficiency over conventional engine configurations. Catalytic ignition systems allow combustion initiation over a much wider range of stoichiometry and water composition than traditional spark ignition systems. The platform explored in this research is a transit van converted to operate on either gasoline or ethanol water fuel mixtures. Special attention was devoted to improve cold starting and installing additional on board sensors and equipment for future testing. System features include integration of a wide band oxygen sensor, state-of-the-art engine management system, exhaust gas temperature sampling using platinum thin film resistive temperature devices and variable voltage control of catalytic igniters using DC-DC boost converters.
The platform explored in this research is a transit van converted to operate on either gasoline or ethanol water fuel mixtures. Special attention was devoted to improve cold starting and installing additional on board sensors and equipment for future testing. System features include integration of a wide band oxygen sensor, state-of-the-art engine management system, exhaust gas temperature sampling using platinum thin film resistive temperature devices, and variable voltage control of catalytic igniters using DC-DC boost converters. Extensive engine performance and emissions testing for 70% ethanol 30% water fuel mixtures operating at air to fuel ratios (AFR) of λ = 1 and λ = 1.15 have shown a substantial reduction in NOx and CO emissions without the use of exhaust after treatment compared to gasoline emissions. Lean mixtures also show reduced emissions and increased thermal efficiency compared to stoichiometric conditions. Chassis dynamometer tests comparing thermal efficiency, and brake specific emissions of NOx, CO2, CO, and hydrocarbons for the ethanol-water fuel mixtures over a wide range of operating conditions are shown.
CitationOlberding, J., Beyerlein, D., Steciak, J., and Cherry, M., "Dynamometer Testing of an Ethanol-Water Fueled Transit Van," SAE Technical Paper 2005-01-3706, 2005, https://doi.org/10.4271/2005-01-3706.
SAE 2005 Transactions Journal of Fuels and Lubricants
Number: V114-4; Published: 2006-02-01
Number: V114-4; Published: 2006-02-01
- Morton, A. T. “Homogeneous Charge Combustion of Aqueous Ethanol in a High Compression Catalytic Engine,” University of Idaho 2000
- Lee, W. Geffers, W. “Engine Performance and Exhaust Emissions Characteristics of Spark Ignition Engines Burning Methanol and Methanol Mixtures,” A.I.Ch.E. Symposium Series #165 73 1977
- Jehlik, F. Jones, M. Shepherd, P. Norbeck, J. Johnson, K. McClanahan, M. “Developnent of a Low-Emission, Dedicated Ethanol-Fuel Vehicle with Cold-Start Distillation System,” SAE Paper 1999-01-0611 1999
- Dale, J. Oppenheim, A. “A Rationale for Advances in Technology of IC Engines,” Society of Automotive Engineers Paper # 820047 1982
- Cordon, D. Beyerlein, S. “Multi-Fuel Platform and Test Protocols for Over-The-Road Evaluation of Catalytic Engine Technology,” December 2002
- Williams, J. Beyerlein, S. “Steady-State Dynamometer Testing of a Passenger Van Comparing Operation on Gasoline and Aqueous Ethanol” November 2004
- Cho, P. Law, C. “Catalytic Ignition of Fuel/Oxygen/Nitrogen Mixtures over Platinum,” Combustion and Flame 66 159 170 1986
- Pfefferle, L. “Catalysis in Combustion, Catalysis Reviews,” Science and Engineering 29 219 267 1987
- Cherry, M. Catalytic-Compression Timed Ignition December 18 1990
- Cherry, M. Morrisset, R. Beck, N. “Extending Lean Limit with Mass-Timed Compression Ignition Using a Plasma Torch,” SAE Paper 921556 1992
- Cherry, M. Morrisset, R. Beck, N. “Extending Lean Limit with Mass-Timed Compression Ignition
- Walker, Dave Engine Management, Optimizing carburetors, fuel injection and ignition systems Haynes High-performance tuning Ser. H835
- Cordon D. Clarke E. Beyerlein S. Steciak J. “Catalytic Igniter to Support Combustion of Ethanol-Water Fuel in Internal Combustion Engines” SAE Paper 2002-01-2863 2002
- Walker, M. “Catalytically-Assisted Combustion of JP-8 in a 1KW Low-compression Genset,” University of Idaho 2003
- Stone, R. Introduction to Internal Combustion Engines SAE Warrendale, Pa 1999
- Clarke, E. S. “Characeterization of Aqueous Ethanol Homogeneous Charge Catalytic Compression Ignition” University of Idaho 2001
- Christensen, M. Johnasson, B. “Homogeneous Charge Compression Ignition with Water Injection,” Society of Automotive Engineers Paper # 1999-01-0182 1999