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Development of a Lean-Burn Natural Gas-Powered Vehicle Based on a Direct-Injection Diesel Engine
Technical Paper
2000-01-1950
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the successive stages needed to develop a lean-burn natural gas engine. A wide optimization was undertaken with the view to power commercial medium duty vehicle able to meet the 2005 proposals with the European MVEG cycle.
PSA Peugeot Citroen DJ5TED 2.5 Liters displacement Direct Injection Diesel engine was chosen to be converted to natural gas Spark Ignition engine. On the basis of findings from simulation using the KMB computer code, combustion chambers of three different shapes were selected, meeting specific air flow motion criteria. After fitting sparkplug and ignition system providing high-energy required under lean operation, the chamber shape showing the best emissions-consumption trade-off was selected from engine bench tests. Then, after turbocharger matching, optimizations were carried out on lean and stoichiometric mixture in order to ensure excellent exhaust emissions and output performances. The validity of the concept was demonstrated with an equivalence ratio in steady state operation below 0.6 over a large range of speeds and loads.
The development of the engine control system with a dedicated Electronic Control Unit was also addressed for the vehicle application. The last step on chassis-dynamometer was the assessment of the required strategies to forecast and control variations in natural gas composition and to ensure good drivability.
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Citation
Tilagone, R., Monnier, G., Satre, A., Lendresse, Y. et al., "Development of a Lean-Burn Natural Gas-Powered Vehicle Based on a Direct-Injection Diesel Engine," SAE Technical Paper 2000-01-1950, 2000, https://doi.org/10.4271/2000-01-1950.Also In
References
- Amsden, A.A. O'Rourke, T.D. Butler, T.D. “KIVA 2, a computer program for chemically reactive flows with sprays” Los Alamos National Laboratory report Los Alamos (USA) 1989
- Habchi, C. Torres, A. “A 3D multiblock structured version of the KIVA 2 code” Computational Fluid Dynamics '92 1 Hirsh et al. Elsevier Science Publishers 1992
- Johansson, B. Olsson, K. “Combustion Chambers for Natural Gas SI Engines Part I: Fluid Flow and Combustion” SAE paper 950469 1995
- Olsson, K. Johansson, B. “Combustion Chambers for Natural Gas SI Engines Part I: Combustion and Emissions” SAE paper 950517 1995
- Kingston Jones M.G. Heaton, D.M. “Nebula Combustion System for Lean Burn Spark Inited Gas Engines” SAE paper 890211 Detroit (USA) 1989
- Sakurai, T. Iko, M. Okamoto, K. Shoji, F. 1993 “Basic Research on Combustion Chambers for Lean Burn Gas Egines” SAE paper 932710 Detroit (USA) 1993
- Cartellieri, W. Chmela, F.G. Kapus, P.E. Tatschl, R.M. “Mechanisms leading to stable and efficient combustion in lean burn gas engines” International Symposium COMODIA Yokohama (Japon) 1994
- Le Coz, J.F. Henriot, S. Herrier, D. Marie, J. J. Barret, P. “Development of lean burn multi-valve S.I. engine: a new approach based on flow field optimization” EAEC No 91012 1991
- Henriot, S. Herrier, D. Le Coz, J.F. 46 5 1991
- Le Coz, J.F. “Cycle to cycle correlation between flow field and combustion” SAE paper No 92051 Detroit (USA) 1992
- Tilagone R. Monnier G. Chaouche A. “Optimization of an ultra-low pollution bus engine running on compressed natural gas” International gas research conference Cannes (France) 1995