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Performance and Emissions of a HD Diesel Engine Converted for Alternative Fuel Use
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 13, 2014 by SAE International in United States
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An experimental study was carried out in order to determine the effect on performance and pollutant emissions of converting an existing heavy-duty diesel engine for alternative fuel use. More specifically, a HD diesel engine used in commercial vehicle applications with Euro II baseline emission level was studied in two ways: on the one hand the diesel engine was converted to a dedicated lean-burn CNG engine and on the other hand the baseline diesel engine was converted to a dual-fuel engine (diesel + LPG) with multi-point LPG injection in the intake cylinder ports. The CNG engine conversion was achieved by means of some important modifications, such as the reduction of the compression ratio by increasing the volume of the combustion chamber in the piston, the design of a spark plug adapter for the installation of the spark plugs in the cylinder head, the design of a gas injection system to attain efficient multi-point gas flow and injection, and the implementation of a complete electronic management system by means of an engineered gas ECU. Concerning the LPG dual-fuel conversion, some minor modifications were made to the diesel engine such as the installation of the gas train components and the implementation of a gas ECU for the management of the gas and diesel injection using some CAN bus J1939 signals. The emission tests carried out were mainly based on R49-02 ECE and R96 UNECE. The results show the feasibility of this kind of engine conversion in terms of its effect on performance and pollutant emissions compared to the baseline diesel engine certification limits, especially reduced PM reaching Euro V level in this kind of contaminant. The maximum LPG substitution ratio reached in this work was around 30%. The results for maximum speed and 1000-metre acceleration driveability tests performed on an international proving ground with the diesel and CNG engine installed in a truck are also given.
CitationBarroso, P., Dominguez, J., Pita Sr, M., and Ribas, X., "Performance and Emissions of a HD Diesel Engine Converted for Alternative Fuel Use," SAE Technical Paper 2014-01-2685, 2014, https://doi.org/10.4271/2014-01-2685.
- Ribas X., “Heavy-Duty liquefied Natural Gas engine developments to meet future emissions requirements, methodology and real application,” FISITA paper F2010F013, 2010.
- Boretti, A. and Grummisch, C., “100% LPG Long Haul Truck Conversion - Economy and Environmental Benefits,” SAE Technical Paper 2012-01-1983, 2012, doi:10.4271/2012-01-1983.
- Harrington, J., Munshi, S., Nedelcu, C., Ouellette, P. et al., “Direct Injection of Natural Gas in a Heavy-Duty Diesel Engine,” SAE Technical Paper 2002-01-1630, 2002, doi:10.4271/2002-01-1630.
- Luft, S., “The Influence of Regulating Parameters of Dual Fuel Compression Ignition Engine Fuelled with LPG on its Maximum Torque, Overall Efficiency and Emission,” SAE Technical Paper 2001-01-3264, 2001, doi:10.4271/2001-01-3264.
- Aroonsrisopon, T., Salad, M., Wirojsakunchai, E., Wannatong, K. et al., “Injection Strategies for Operational Improvement of Diesel Dual Fuel Engines under Low Load Conditions,” SAE Technical Paper 2009-01-1855, 2009, doi:10.4271/2009-01-1855.
- Wirojsakunchai, E., Aroonsrisopon, T., Wannatong, K., and Akarapanjavit, N., “A Simulation Study of an Aftertreatment System Level Model for Diesel Dual Fuel (DDF) Engine Emission Control,” SAE Technical Paper 2009-01-1966, 2009, doi:10.4271/2009-01-1966.
- Zhang, Y., Liu, X., Yang, Q., Han, X. et al., “The Studies of an Electronically Controlled CNG System for Dual Fuel Engines,” SAE Technical Paper 2001-01-0145, 2001, doi:10.4271/2001-01-0145.
- Czerwinski, J., Comte, P., and Zimmerli, Y., “Investigations of the Gas Injection System on a HD-CNG-Engine,” SAE Technical Paper 2003-01-0625, 2003, doi:10.4271/2003-01-0625.
- Weiß J. “1-D cycle cycle simulation exemplified as a helpful tool within the scope of truck engine development”, THIESEL 2002 Conference on Thermo- and Fluid-Dynamic Processes in Diesel Engines, 2002.
- Economic Commission for Europe, series of amendments to Regulation No. 49. ECE-TRANS-WP29-2012-103, 2012.
- Sakurai, T., Iko, M., Okamoto, K., and Shoji, F., “Basic Research on Combustion Chambers for Lean Burn Gas Engines,” SAE Technical Paper 932710, 1993, doi:10.4271/932710.
- Johansson, B. and Olsson, K., “Combustion Chambers for Natural Gas SI Engines Part I: Fluid Flow and Combustion,” SAE Technical Paper 950469, 1995, doi:10.4271/950469.
- Olsson, K. and Johansson, B., “Combustion Chambers for Natural Gas SI Engines Part 2: Combustion and Emissions,” SAE Technical Paper 950517, 1995, doi:10.4271/950517.
- Barroso Guzman, P., Ribas, X., García Sr, J., and Pita Sr, M., “PM and CO2 Reduction in a Dual-fuel Heavy-duty Diesel Engine during the Freeway Part of Transient Worldwide Emission Tests,” SAE Technical Paper 2013-01-2759, 2013, doi:10.4271/2013-01-2759.
- Borman, R., Stalhammar, P., and Erlandsson, L., “Enhanced emission performance and fuel efficiency for HD Methane engines”, AVL Motor Test Center report, 2010.
- Hupperich, P. and Dürnholz, M., “Exhaust Emissions of Diesel, Gasoline and Natural Gas Fuelled Vehicles,” SAE Technical Paper 960857, 1996, doi:10.4271/960857.
- Kakaee, A. H., Paykani, A., and Ghajar, M., “The influence of fuel composition on the combustion and emission characteristics of natural gas fuelled engines”, Renewable and Sustainable Energy Reviews, 2014, doi:10.1016/j.rser.2014.05.080.
- Corbo, P., Gambino, M., Iannaccone, S., and Unich, A., “Comparison Between Lean-Burn and Stoichiometric Technologies for CNG Heavy-Duty Engines,” SAE Technical Paper 950057, 1995, doi:10.4271/950057.