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Innovative Ultra-low NOx Controlled Auto-Ignition Combustion Process for Gasoline Engines: the 4-SPACE Project
Technical Paper
2000-01-1837
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The purpose of the 4-SPACE (4-Stroke Powered gasoline Auto-ignition Controlled combustion Engine) industrial research project is to research and develop an innovative controlled auto-ignition combustion process for lean burn automotive gasoline 4-stroke engines application. The engine concepts to be developed could have the potential to replace the existing stoichiometric / 3-way catalyst automotive spark ignition 4-stroke engines by offering the potential to meet the most stringent EURO 4 emissions limits in the year 2005 without requiring DeNOx catalyst technology. A reduction of fuel consumption and therefore of corresponding CO2 emissions of 15 to 20% in average urban conditions of use, is expected for the « 4-SPACE » lean burn 4-stroke engine with additional reduction of CO emissions.
This paper describes the first set of results of different experimental and numerical studies aiming to get such new combustion process in 4-stroke engines within the framework of this European consortium.
One of the target of this consortium driven by IFP, is to develop a 4-stroke gasoline engine running conventionally at high load (with a normal compression ratio and without any intake air heating) and able to achieve Controlled Auto-Ignition (CAI) process at part load by reproducing the 2-stroke internal conditions (internal EGR rate and fluid dynamic control, temperature level…) favorable to this particular combustion process. For this purpose and as a starting point of the work program, a production 2-stroke engine known for its part load auto-ignition behavior is fully studied. Such work is focused on the analysis of in-cylinder conditions prior to auto-ignition using combined experimental testing, 3D CFD computations and optical diagnostics.
From this analysis, 1D CFD computations have been extensively performed to evaluate the possible 4-stroke concepts able to reproduce internal conditions favorable to CAI. Then, the most “promising” configurations have been experimentally investigated. Encouraging preliminary results have already shown that NOx emissions are reduced by 10 to 40 times and the fuel economy is improved by 8 to 10% when compared with stoichiometric reference conditions.
Other ways of getting auto-ignition of the lean fresh mixture are also explored by the project partners. The effects of several parameters, such as the fuel composition, the engine compression ratio, the intake air temperature level, etc… are also included in the research program. Thus, to analyze better analyze intrinsic auto-ignition process, specific tools as for example Rapid Compression Machine have been developed. Different fuels at various initial conditions (e.g. temperature, excess air) have been tested and compared, for example in terms for example of combustion rate and auto-ignition delay. Results obtained contribute to the better understanding of the auto-ignition process.
Preliminary visualization results from specially designed single cylinder engines (2-stroke and 4-stroke) have been obtained for controlled auto-ignition combustion. The effect of charge stratification is briefly discussed.
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Authors
- Jacques Lavy - IFP
- Jean-Charles Dabadie - IFP
- Christian Angelberger - IFP
- Pierre Duret - IFP
- Jürgen Willand - Daimler Chrysler
- Andreas Juretzka - Daimler Chrysler
- Jochen Schäflein - Daimler Chrysler
- Tom Ma - Ford
- Yvane Lendresse - PSA Peugeot Citroën
- Arnaud Satre - PSA Peugeot Citroën
- Christof Schulz - PCI - Heidelberg University
- Heinz Krämer - PCI - Heidelberg University
- Hua Zhao - Brunel University
- Len Damiano - Brunel University
Topic
Citation
Lavy, J., Dabadie, J., Angelberger, C., Duret, P. et al., "Innovative Ultra-low NOx Controlled Auto-Ignition Combustion Process for Gasoline Engines: the 4-SPACE Project," SAE Technical Paper 2000-01-1837, 2000, https://doi.org/10.4271/2000-01-1837.Also In
References
- NAJT P.M. FOSTER D.E. Compression-Ignited Homogeneous Charge Combustion SAE 830264
- THRING R.H. Homogeneous-Charge Compression Ignition (HCCI) Engines SAE 892068
- AOYAMA T. HATTORI Y. MIZUTA J. SATO Y. An Experimental Study on Premixed-Charge Compression Ignition Gasoline Engine Internal Combustion Engine 34 o 435 1995 113 120
- AOYAMA T. HATTORI Y. MIZUTA J. SATO Y. An Experimental Study on Premixed-Charge Compression Ignition Gasoline Engine SAE 960081
- STOCKINGER M. SCHÄPPERTÖNS H. KUHLMANN P. Investigations on a gasoline Engine working with Self-Ignition by Compression 53 1992 2 80 85
- DURET P. DABADIE J.C. COLLIOU T. Application of IAPAC Fuel Injection for Low Emissions Small Two-Stroke Engines 4th SETC Conference - SAE 951785
- SMITH D.A. AHERN S.R. Developments in the Orbital Ultra Low Emissions Vehicle IFP International Seminar “A new generation of Two- Stroke Engines” 29-30 Novembre 1993 Technip
- ONISHI S. JO SOUK HONG SHODA K. JO PAN DO KATO S. Active Thermo-Atmosphere Combustion (ATAC) - A New Combustion Process for Internal Combustion Engine SAE 790501
- NOGUCHI M. TANAKA Y. TANAKA T. TAKEUCHI Y. A Study on Gasoline Engine Combustion by Observation of Intermediate Reactive Products during Combustion SAE 790840
- ISHIBASHI Y. TSUSHIMA Y. A Trial for Stabilizing Combustion in Two-Stroke Engines at Part Throttle Operation IFP International Seminar 1993
- ASAI M. KUROSAKI T. OKADA K. Analysis on Fuel Economy Improvement and Exhaust Emission Reduction in a Two-Stroke Engine by Using an Exhaust Valve 4th SETC Conference - SAE 951764
- ISHIBASHI Y. ASAI M. Improving the Exhaust Emissions of Two-Stroke Engine by Applying the Activated Radical Combustion SAE 960742
- DURET P. VENTURI S. CAREY C. The IAPAC Fluid Dynamically Controlled Automotive Two-Stroke Combustion Process IFP International Seminar 1993
- DURET P. VENTURI S. Automotive Calibration of the IAPAC Fluid Dynamically Controlled Two-Stroke Combustion Process SAE 960363
- LAVY J. Raux S. Esterlingot E. Guibert P. Thermodynamical AND Optical Analyses of Controlled Auto-Ignition Combustion 2-Stroke Engines - SETC 97 SAE 972098 - JSAE 97 34 313
- HABCHI C. BARITAUD T.A. MONNIER G. KERIBIN P. 3D Modelling of Direct Injected Two-Stroke Engine IFP International Seminar 1993
- PETIT A. LAVY J. MONNIER G. MONTAGNE X. Speciated Hydrocarbon Analysis : A Helpful Tool for Two-Stroke Engine Development IFP International Seminar 1993
- IIDA N. Combustion Analysis of Methanol - Fueled Active Thermo-Atmosphere Combustion (ATAC) Engine Using a Spectroscopic Observation SAE 940684
- Landenfeld T. Kremer A., Hassel E.P. Janicka J. Schäfer T. Kazenwadel J. Schulz C. Wolfrum J. Laserdiagnostic and numerical studies of strongly swirling natural-gas flames Proc. Combust. Inst. 27 1023 1030 1998
- Krämer H. Einecke S. Schulz C. Sick V. Nattrass S.R. Kitching J.S. Simultaneous mapping of the distribution of different fuel volatility classes using tracer-LIF and NIR tomography in an IC engine paper No. 982467 , 1998 SAE Transactions 107 Journal of Fuels & Lubricants 1048 1059
- Hildenbrand F. Schulz C. Sick V. Josefsson G. Magnusson I. Andersson Ö. Aldén M. Laserspectroscopic investigation of flow fields and NO-formation in a realistic SI engine SAE, Paper No. 980148 , 1998 SAE Transactions 107 Journal of Engines 205 214
- Hildenbrand F. Schulz C. Hartmann M. Puchner F. Wawrschin G. In-Cylinder NO-LIF imaging in a realistic GDI engine using KrF excimer laser excitation SAE paper No. 1999-01-3545 1999
- Berckmüller M. Tait N.P. Lockett R.D. Greenhalgh D.A. Iishi K. Urata Y. Umiyama H. Yoshida K. “In-Cylinder Crank-Angle Resolved Imaging of Fuel Concentrations in a Firing Spark-Ignition Engine Using Planar Laser-Induced Fluorescence” Proc. Combust. Inst. 25 151 1994
- Arnold A. Buschmann A. Cousyn B. Decker M. Vannobel F. Sick V. Wolfrum J. “Simultaneous Imaging of Fuel and Hydroxyl Radicals in an In-Line Four Cylinder Engine” SAE paper No. 932696 1996
- Reboux J. Puechberty D. Dionnet F. “A new approach of Planar Laser-Induced Fluorescence Applied to Fuel/Air Ratio Measurement in the Compression Stroke of an Optical SI Engine” SAE paper No. 941988 1994
- Neij H. Johansson B. Aldén M. “Development and Demonstration of 2D-LIF for Studies of Mixture Preparation in SI Engines” Combust. Flame 99 449 1994
- Einecke S. Schulz C. Sick V. Dreizler A. Schießl R. Maas U. Two-dimensional temperature measurements in an SI engine using two-line tracer LIF SAE paper No. 982468 , 1998 SAE Transactions 107 Journal of Fuels & Lubricants 1060 1068
- Böckle S. Kazenwadel J. Kunzelmann T. Shin D.-I. Schulz C. Wolfrum J. Simultaneous single-shot laser-based imaging of formaldehyde, OH and temperature in turbulent flames Proc. Combust. Inst. 28 2000