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The Effect of Fuel Injection Pressure on Spray and Combustion Characteristics in a Gasoline Direct-Injection Engine
Technical Paper
2014-01-2604
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A single-cylinder gasoline direct-injection engine was used for fuel spray and combustion visualizations with optical access to the combustion chamber. Experiments were conducted to investigate the effect of fuel injection pressure on spray and combustion characteristics inside the engine cylinder. A multi-hole high-pressure production injector was used with fuel pressures of 5 and 10 MPa. A Mie scattering technique was used to image the liquid phase of the fuel dispersion. The obtained spray images were then used to study the macroscopic spray characteristics such as spray structure, spray tip penetration and spray angle. Combustion visualization tests were performed to evaluate the effect of fuel injection pressure on combustion characteristics. In-cylinder pressure signals were recorded for the combustion analyses and synchronized with the high-speed combustion imaging recording. Results showed that higher fuel injection pressure led to faster spray tip penetration and an increased spray area for better fuel-air mixing. The results of combustion visualization showed faster flame growth with the increment of fuel injection pressure. The profiles of mass fraction burned confirmed that the burn duration is shorter for higher fuel injection pressure.
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Mittal, M. and Schock, H., "The Effect of Fuel Injection Pressure on Spray and Combustion Characteristics in a Gasoline Direct-Injection Engine," SAE Technical Paper 2014-01-2604, 2014, https://doi.org/10.4271/2014-01-2604.Also In
References
- Zhao F , Lai MC and Harrington DL 1999 Automotive spark-ignited direct-injection gasoline engines Progress in Energy and Combustion Science 25 5 437 562
- Nishida K , Tian J , Sumoto Y , Long W , Sato K and Yamakawa M 2009 An experimental and numerical study on sprays injected from two-hole nozzles for DISI engines Fuel 88 9 1634 1642
- Jafarmadar S and Heidarpoor V 2011 Numerical studies of spray breakup in a gasoline direct injection engine Thermal Science 15 4 1111 1122
- Moon S , Abo-Serie E and Bae C 2009 Air flow and pressure inside a pressure-swirl spray and their effects on spray development Experimental Thermal and Fluid Science 33 2 222 231
- Gao J , Jiang D and Huang Z 2007 Spray properties of alternative fuels: A comparative analysis of ethanol-gasoline blends and gasoline Fuel 86 10-11 1645 1650
- Kostas J , Honnery D and Soria J 2009 Time resolved measurements of the initial stages of fuel spray penetration Fuel 88 11 2225 2237
- Kumar G and Kumar A 2013 Spray behavior comparison in diesel engine with biodiesel as fuel Journal of Energy Technologies and Policy 3 4 14 24
- Hiroyasu H and Arai M 1980 Fuel spray penetration and spray angle of diesel engines Trans. of JSAE 21 5-11
- Lee CH and Reitz RD 2012 A comparative study on CFD simulation of spray penetration between gas jet and standard KIVA-3V spray model over a wide range of ambient gas densities Journal of Mechanical Science & Technology 26 12 4017 4025
- Soid SN and Zainal ZA 2011 Spray and combustion characterization for internal combustion engines using optical measuring techniques - A review Energy 36 2 724 741
- Arcoumanis , C. , Bae , C. , and Hu , Z. Flow and Combustion in a Four-Valve, Spark-Ignition Optical Engine SAE Technical Paper 940475 1994 10.4271/940475
- Wyszynnski , L. , Aboagye , R. , Stone , R. , and Kalghatgi , G. Combustion Imaging and Analysis in a Gasoline Direct Injection Engine SAE Technical Paper 2004-01-0045 2004 10.4271/2004-01-0045
- Bladh H , Brackmann C , Dahlander P , Denbratt I and Bengtsson PE 2005 Flame propagation visualization in a spark-ignition engine using laser-induced fluorescence of cool-flame species Meas. Sci. Technol. 16 5 1083 1091
- Sauter W , Nauwerck A , Han KM , Pfeil J , Velji A and Spicher U 2006 High-speed visualization of combustion in modern gasoline engines Journal of Physics: Conference Series 45 120 132
- Mittal , M. , Hung , D. , Zhu , G. , and Schock , H. High-Speed Flow and Combustion Visualization to Study the Effects of Charge Motion Control on Fuel Spray Development and Combustion Inside a Direct-Injection Spark-Ignition Engine SAE Int. J. Engines 4 1 1469 1480 2011 10.4271/2011-01-1213
- Mittal , M. , Schock , H. , and Zhu , G. In-cylinder Combustion Visualization of a Direct-injection Spark-ignition Engine with Different Operating Conditions and Fuels SAE Technical Paper 2012-01-1644 2012 10.4271/2012-01-1644
- Rassweiler , G. and Withrow , L. Motion Pictures of Engine Flames Correlated with Pressure Cards SAE Technical Paper 380139 1938 10.4271/380139
- Mittal M , Hung DLS , Zhu G and Schock H 2011 Fuel spray visualization and its impingement analysis on in-cylinder surfaces in a direct-injection spark-ignition engine Journal of Visualization 14 2 149 160
- Hiroyasu , H. and Arai , M. Structures of Fuel Sprays in Diesel Engines SAE Technical Paper 900475 1990 10.4271/900475
- Delacourt E , Desmet B and Besson B 2005 Characterisation of very high pressure diesel sprays using digital imaging techniques Fuel 84 7-8 859 867
- Aleiferis , P. , Malcolm , J. , Todd , A. , Cairns , A. et al. An Optical Study of Spray Development and Combustion of Ethanol, Iso-Octane and Gasoline Blends in a DISI Engine SAE Technical Paper 2008-01-0073 2008 10.4271/2008-01-0073
- Shapiro LG and Stockman GC 2011 Computer Vision London Prentice-Hall