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Direct Water Injection Strategies for Performance Improvement of a Turbocharged Spark-Ignition Engine at High Load Operation
Technical Paper
2022-37-0007
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Water injection (WI) could be a viable tool for the reduction of CO2 emissions of spark-ignition engines. At high loads, the performances of this kind of engines are constrained by knock phenomena, thermal limits of engine components and maximum tolerable in-cylinder pressure. Water injection, mainly due to its cooling effect, helps mitigating knock and reducing the exhaust gas temperature. Furthermore, it allows to obtain greater spark advances, better combustion phasing and leaner mixtures with a consequent improvement in terms of engine efficiency.
In this work, the authors investigated the effects of a particular direct water injection (DWI) strategy on the performance of a turbocharged PFI spark-ignition engine at high load operation. The analysis has been carried out using a validated 1D model that reproduces the entire engine layout. A knock model allows to identify the knock-limited parameters in the various operating points analyzed. Threshold values for both exhaust turbine inlet temperature and maximum in-cylinder pressure have been imposed. The results of this analysis show how a particular DWI strategy allows optimizing engine parameters in order to improve the fuel economy of the analyzed engine at full load operation. In particular, a double water injection strategy (pilot and post WI) has been performed in almost all the operating conditions analyzed. The adopted DWI configuration allows an increase of indicated mean effective pressure up to 19% and a reduction of indicated specific fuel consumption up to 36% with respect to engine operation without WI.
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Citation
Lanni, D. and Galloni, E., "Direct Water Injection Strategies for Performance Improvement of a Turbocharged Spark-Ignition Engine at High Load Operation," SAE Technical Paper 2022-37-0007, 2022, https://doi.org/10.4271/2022-37-0007.Also In
References
- Hermann , I. , Glahn , C. , Kluin , M. , Paroll , M. et al. Thermodynamic Potential of Water injection for Gasoline Engines 16th Conference The Working Process of the Internal Combustion Engine Graz 2017
- Lanni , D. , Galloni , E. , Fontana , G. , and Erme , G. Experimental and Numerical Analyses of Direct and Port Water Injection in a Turbocharged Spark-Ignition Engine SAE Technical Paper 2021-24-0035 2021 https://doi.org/10.4271/2021-24-0035
- Lanni , D. , Galloni , E. , and Fontana , G. Numerical Analysis of the Effects of Port Water Injection in a Downsized SI Engine at Partial and Full Load Operation Applied Thermal Engineering 205 2022 118060 https://doi.org/10.1016/j.applthermaleng.2022.118060
- De Bellis , V. , Bozza , F. , Teodosio , L. , and Valentino , G. Experimental and Numerical Study of the Water Injection to Improve the Fuel Economy of a Small Size Turbocharged SI Engine SAE Int. J. Engines 10 2 2017 550 561 10.4271/2017-01-0540
- Netzer , C. , Franken , T. , Seidel , L. , Lehtiniemi , H. et al. Numerical Analysis of the Impact of Water Injection on Combustion and Thermodynamics in a Gasoline Engine Using Detailed Chemistry SAE Int. J. Engines 11 2018 1151 1166 https://doi.org/10.4271/2018-01-0200
- Hoppe , F. , Thewes , M. , Seibel , J. , Balazs , A. et al. Evaluation of the Potential of Water Injection for Gasoline Engines SAE Int. J. Engines 10 5 2017 2500 2512 10.4271/2017-24-0149
- Hermann , I. , Glahn , C. , Paroll , M. , and Gumprich , W. Water Injection for Gasoline Engines - Potentials and Challenges Liebl , J. , Beidl , C. , Maus , W. Internationaler Motorenkongress 2019, Proceedings Wiesbaden Springer Vieweg 2019 https://doi.org/10.1007/978-3-658-26528-1_7
- D'Adamo , A. , Berni , F. , Breda , S. , Lugli , M. et al. A Numerical Investigation on the Potentials of Water Injection as a Fuel Efficiency Enhancer in Highly Downsized GDI Engines SAE Technical Paper 2015-01-0393 2015 10.4271/2015-01-0393
- Boretti , A. Water Injection in Directly Injected Turbocharged Spark Ignition Engines Applied Thermal Engineering 52 1 2013 62 68 10.1016/j.applthermaleng.2012.11.016
- Lanzafame , R. Water Injection Effects in A Single-Cylinder CFR Engine SAE Technical Paper 1999-01-0568 1999 https://doi.org/10.4271/1999-01-0568
- Teodosio , L. , De Bellis , V. , and Bozza , F. Combined Effects of Valve Strategies, Compression Ratio, Water Injection, and Cooled EGR on the Fuel Consumption of a Small Turbocharged VVA Spark-Ignition Engine SAE Int. J. Engines 11 6 2018 643 656 10.4271/2018-01-0854
- Cordier , M. , Lecompte , M. , Malbec , L.-M. , Reveille , B. et al. Water Injection to Improve Direct Injection Spark Ignition Engine Efficiency WCX SAE World Congress Experience Detroit, Michigan 2019 https://doi.org/10.4271/2019-01-1139
- Bevilacqua , V. , Jacobs , E. , Grauli , G. , and Wüst , J. 2013
- Wan , J. , Zhuang , Y. , Huang , Y. , Qian , Y. et al. A Review of Water Injection Application on Spark-Ignition Engines Fuel Processing Technology 221 2021 106956 https://doi.org/10.1016/j.fuproc.2021.106956
- Galloni , E. , Fontana , G. , and Palmaccio , R. Effects of Exhaust Gas Recycle in a Downsized Gasoline Engine Applied Energy 105 2013 99 107 https://doi.org/10.1016/j.apenergy.2012.12.046
- Galloni , E. , Fontana , G. , and Palmaccio , R. Numerical Analyses of EGR Techniques in a Turbocharged Spark-Ignition Engine Applied Thermal Engineering 39 2012 95 104
- Scala , F. , Galloni , E. , and Fontana , G. Numerical Analysis of a Downsized Spark-Ignition Engine Fueled by Butanol/Gasoline Blends at Part-Load Operation Applied Thermal Engineering 102 2016 383 390 https://doi.org/10.1016/j.applthermaleng.2016.03.137
- Hires , S. , Tabaczynski , R. , and Novak , J. The Prediction of Ignition Delay and Combustion Intervals for a Homogeneous Charge, Spark Ignition Engine SAE Technical Paper 780232 1978 https://doi.org/10.4271/780232
- Blizard , N. and Keck , J. Experimental and Theoretical Investigation of Turbulent Burning Model for Internal Combustion Engines SAE Technical Paper 740191 1974 https://doi.org/10.4271/740191
- Heywood , J.B. Internal Combustion Engine Fundamentals Singapore McGraw-Hill Book Co. 1988
- Metghalchi , M. and Keck , J.C. Burning Velocities of Mixtures of air with Methanol, Isooctane, and Indolene at High Pressure and Temperature Combust Flame 48 1982 191 210
- Metghalchi , M. and Keck , J.C. Laminar Burning Velocity of Propane-Air Mixtures at High Temperature and Pressure Combust Flame 38 1980 143 154
- Livengood , J.C. , and Wu , P.C. Correlation of Autoignition Phenomena in Internal Combustion Engines and Rapid Compression Machines Symposium (International) on Combustion 5 1955 347 56
- Douaud , A. and Eyzat , P. Four-Octane-Number Method for Predicting the Anti-Knock Behavior of Fuels and Engines SAE Technical Paper 780080 1978 https://doi.org/10.4271/780080
- Richard , S. , Bougrine , S. , Font , G. , Lafossas , F.-A. et al. On the Reduction of a 3D CFD Combustion Model to Build a Physical 0D Model for Simulating Heat Release, Knock and Pollutants in SI Engines Oil & Gas Science and Technology - Revue de l’IFP 64 2009 223 242 https://doi.org/10.2516/ogst/2008055
- Galloni , E. , Fontana , G. , and Scala , F. Experimental and Numerical Analyses of a Spark-Ignition Engine Firing with N-Butanol-Gasoline Blends at High Load Operation Energy Procedia 148 2018 336 343
- Scala , F. , Galloni , E. , and Fontana , G. Numerical Analysis of a Spark-Ignition Engine Fueled by Ethanol-Gasoline and Butanol-Gasoline Blends: Setting the Optimum Spark Advance SAE Technical Paper 2017-24-0117 2017 https://doi.org/10.4271/2017-24-0117