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Study of In-Cylinder Tumble Effect on Spark Ignition Direct Injection (SI-DI) Engine Performance Using Gasoline, CNG & E85 Fuels and Simulation Technique
Technical Paper
2017-26-0076
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Vehicles with direct injection engines employ various methods for mixing fuel and air in an engine cylinder. Efficient mixing increases combustion burn rate, improving combustion stability and knock suppression. Spark ignition engines may use tumble flow motion to generate turbulence, which includes rotational motion generally perpendicular to the cylinder axis to improve air and fuel mixing. Depending on operating conditions, more or less tumble may be advantageous. In this paper the tumble motion of the charge air is studied and simulated only in the suction stroke. A direct injected turbocharged combustion system employing central-mounted multihole injector. This paper presents the comparative study of effect of intake port design with various levels of tumble motion for fuels used in SIDI engines on the engine performance characteristics. A high tumble intake port design enforces a well-organized stable motion that results in higher turbulence intensity in the cylinder that in turn leads to faster burn rates, a more stable combustion and less fuel enrichment requirement at full load. A current GDI engine intake port was studied, simulated using 3D simulation workbench for tumble flow and validated on test rig. Based on this, the intake port was modified for optimized tumble ratio for other fuels (gaseous and liquid less volatile) using simulation techniques and the engine performance was evaluated in terms of torque, power and BSFC using 1D engine simulation tool.
Authors
- Prasanna Sutar - Automotive Research Association of India
- Ashwin Dsouza - Automotive Research Association of India
- Shailesh B Sonawane - Automotive Research Association of India
- S D Rairikar - Automotive Research Association of India
- Kishorkumar Kavathekar - Automotive Research Association of India
- Sukrut Thipse - Automotive Research Association of India
- Neelkanth Marathe - Automotive Research Association of India
- Siddaling Bhure - Automotive Research Association of India
- Mubeen Mapkar - Automotive Research Association of India
Citation
Sutar, P., Dsouza, A., Sonawane, S., Rairikar, S. et al., "Study of In-Cylinder Tumble Effect on Spark Ignition Direct Injection (SI-DI) Engine Performance Using Gasoline, CNG & E85 Fuels and Simulation Technique," SAE Technical Paper 2017-26-0076, 2017, https://doi.org/10.4271/2017-26-0076.Also In
References
- Li Jun , Gong Yanfeng , Li Wei 2010 Study on combustion characteristics of Gasoline direct injection engine Journal of xi'an jiaotong university 44 7 9 13
- Thipse , S. , Sonawane , S. , D' Souza , A. , Rairikar , S. et al. Injection Strategies, Optimization and Simulation Techniques on DI CNG Technology SAE Technical Paper 2015-26-0046 2015 10.4271/2015-26-0046
- Kume , T. , Iwamoto , Y. , Iida , K. , Murakami , M. et al. Combustion Control Technologies for Direct Injection SI Engine SAE Technical Paper 960600 1996 10.4271/960600
- Matsuhita S , Nakanishi K , Gohno T et. al. 1996 Mixture formation process and combustion process of direct injection SI engine Tokyo, Japan JSAE 101 105
- Midhun , V. , Karthikeyan , S. , Nagarajan , . , Krishnan , S. et al. Development of CNG Injection Engine to Meet Future Euro-V Emission Norms for LCV Applications SAE Technical Paper 2011-26-0002 2011 10.4271/2011-26-0002
- Davis , R. , Mandrusiak , G. , and Landenfeld , T. Development of the Combustion System for General Motors' 3.6L DOHC 4V V6 Engine with Direct Injection SAE Int. J. Engines 1 1 85 100 2009 10.4271/2008-01-0132
- Kim , M. , Lee , S. , and Kim , W. Tumble Flow Measurements Using Three Different Methods and its Effects on Fuel Economy and Emissions SAE Technical Paper 2006-01-3345 2006 10.4271/2006-01-3345
- Falfari , S. , Bianchi , G. , and Nuti , L. 3D CFD Analysis of the Influence of Some Geometrical Engine Parameters on Small PFI Engine Performances - The Effects on Tumble Motion and Mean Turbulent Intensity Distribution SAE Technical Paper 2012-32-0096 2012 10.4271/2012-32-0096
- Subramanian , A. and Mehta , P. Model Predictions for Tumble and Turbulence in SI Engine Combustion Chambers SAE Technical Paper 2001-28-0013 2001 10.4271/2001-28-0013
- Iyer , C. and Yi , J. 3D CFD Upfront Optimization of the In-Cylinder Flow of the 3.5L V6 EcoBoost Engine SAE Technical Paper 2009-01-1492 2009 10.4271/2009-01-1492
- Zhao , F. , Lai , M. , and Harrington , D. A Review of Mixture Preparation and Combustion Control Strategies for Spark-Ignited Direct-Injection Gasoline Engines SAE Technical Paper 970627 1997 10.4271/970627