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Theoretical and Experimental Analysis of the Spray Characteristics of a Pressure Pulse GDI System
Technical Paper
2004-01-0538
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The internal mixture formation by gasoline direct injection offers a remarkable potential to improve the engine performances and to reduce the pollutant emission, due to the large possibilities of process control. On the other hand, the control mechanisms their selves are more complex and sensitive at speed or load variations than the ones used for external mixture formation. The spray characteristics, as well as the shape of injection rate have to be accurately adapted to every condition of load, speed and surrounding.
This paper presents a method for the effective optimization of GDI techniques for SI engines, which is exemplified by a system with direct injection by high pressure modulation. The method is based on the interactive optimization of the processes within the injection system respectively during the spray evolution, by a feed-back strategy between separate numerical simulations of both processes.
The characterization and optimization of the injection system respectively of the injection characteristics is performed using the 1D code AMESim. The analysis of the spray evolution is conducted by mean of the 3D code FIRE. For the data exchange between the two codes a new element integrated in the code AMESim was developed.
For both modules the calibration is ensured by appropriate hydraulically and optically experimental analysis methods.
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Stan, C., Stanciu, A., Troeger, R., Lanzafame, R. et al., "Theoretical and Experimental Analysis of the Spray Characteristics of a Pressure Pulse GDI System," SAE Technical Paper 2004-01-0538, 2004, https://doi.org/10.4271/2004-01-0538.Also In
References
- Stiech, G. Modeling Engine Spray and Combustion Processes Springer Verlag 2003 3-540-00682-6
- Stan, C. Direct Injection Systems The Next Decade in Engine Technology SAE International 2003 0-7680-1070-5
- Stan, C. Stanciu, A. Troeger, R. Martorano, L. Tarantino, C. Antonelli, M. Lensi, R. Influence of Mixture Formation on Injection and Combustion Characteristics in a Compact GDI Engine SAE Paper 2002-01-0997
- Stan, C. Troeger, R. Guenther, S. Stanciu, A. Martorano, L. Tarantino, C. Internal Mixture Formation and Combustion - from Gasoline to Ethanol SAE Paper 2001-01-1207
- Stan, C. Stanciu, A. Troeger, R. Direct Injection Concept as a Support of Engine Down-Sizing SAE Paper 2003-01-0541
- AMESim 4.1.3. Imagine Rouane, S. A. France
- Stan, C. Martorano, L. Stanciu, A. Tarantino, C. Proceedings for the International Conference 3-81692014-4
- Hydsim v4.3 User manual AVL Graz, Austria
- Davy, M. Williams, P. Spray Characteristics of Pressure-Swirl Atomizers and Implication on Engines Performance Proceedings for the International Conference 3-81692014-4
- Pontoppidan, M. Gaviani, G. Bella, G. Direct Injection for Future SI Engines - Stand-Alone Combustion Layout Or Integrated Part of Multi-Function Fuel/Air Management Approach? SAE Paper 2003-01-0540
- Dukowicz, J. K. A Particle-Fluid Numerical Model for Liquid Sprays Journal of Computational Physics 35 1980 229 253
- Abramzon, B. Sirignano, W. A. Droplet vaporization model for spray combustion calculations International Journal for Heat and Mass Transfer 32 1989 1605 1618
- FIRE v8.2 Spray modeling -Theory / User Manual AVL Graz 2003
- Priesching, P. Wanker, R. Cartellieri, P. Tatschl, R. Detailed and Reduced Chemistry CFD Modeling of Premixed Charge Compression Ignition Engine Combustion International Multidimensional Engine Modeling User's Group Meeting Detroit, Michigan USA 2 March 2003
- Zuo, B. Gomes, A. M. Rutland, C. J. Modeling Superheated Fuel Sprays and Vaporization Journal of Engine Research 2001