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Optical Diagnostics of Pre-Chamber Combustion with Flat and Bowl-In Piston Combustion Chamber
Technical Paper
2021-01-0528
ISSN: 0148-7191, e-ISSN: 2688-3627
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SAE WCX Digital Summit
Language:
English
Abstract
Pre-chamber Combustion (PCC) extends the lean operation limit operation of spark ignition (SI) engines, thus it has been of interest for researchers as a pathway for increased efficiency and reduced emissions. Optical diagnostic techniques are essential to understand the combustion process, but the engine components such as the piston geometry, are often different from real engines to maximize the optical access. In this study, ignition and subsequent main chamber combustion are compared in an optically accessible PCC engine equipped with a “flat” and a real engine-like “bowl” piston geometry. An active fueled narrow throat pre-chamber was used as the ignition source of the charge in the main-chamber, and both chambers were fueled with methane. Three pre-chamber fuel effective mean pressure (FuelMEP) ratios (PCFR) namely 6%, 9% and 11% of the total amount of fuel were tested at two global excess air ratios (λ) at values of 1.8 and 2.0. The optical engine configuration included a metal liner and a quartz piston, and it was operated for 100 consecutive firing cycles, allowing stable emissions measurements. A high-speed intensified camera was used to record the OH* chemiluminescence of the main-chamber combustion. The camera was operated at 50 kHz, resulting in a resolution smaller than 0.2 Crank Angle Degree (CAD), at the engine speed of 1200 revolutions per minute (RPM). Both pistons exhibited similar pre-chamber pressures and an equal pressure difference between pre- and main-chamber (ΔP) at the peak pressure inside the pre-chamber. The free reacting jet behavior was also comparable between the two piston geometries. However, the flat combustion chamber resulted in a shorter free jet time because of the early reacting jet-piston interaction. The interaction also slowed down the combustion propagation and increased the combustion duration for the flat piston.
Authors
- Manuel Echeverri Marquez - King Abdullah University of Science & Technology
- Ponnya Hlaing - King Abdullah University of Science & Technology
- Moez Ben Houidi - King Abdullah University of Science & Technology
- Gaetano Magnotti - King Abdullah University of Science & Technology
- Bengt Johansson - King Abdullah University of Science & Technology
- Emre Cenker - Saudi Aramco
Topic
Citation
Echeverri Marquez, M., Hlaing, P., Ben Houidi, M., Magnotti, G. et al., "Optical Diagnostics of Pre-Chamber Combustion with Flat and Bowl-In Piston Combustion Chamber," SAE Technical Paper 2021-01-0528, 2021, https://doi.org/10.4271/2021-01-0528.Data Sets - Support Documents
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References
- Parliament, E
- Bunce , M. , Blaxill , H. , Kulatilaka , W. , and Jiang , N. The Effects of Turbulent Jet Characteristics on Engine Performance using a Pre-Chamber Combustor SAE Technical Paper 2014-01-1195 2014 https://doi.org/10.4271/2014-01-1195
- Correale , G. , Rakitin , A. , Nikipelov , A. et al. Non-Equilibrium Plasma Ignition for Internal Combustion Engines SAE Technical Paper 2011-24-0090 2011 https://doi.org/10.4271/2011-24-0090
- Dale , J.D. , Smy , P.R. , and Clements , R.M. Laser Ignited Internal Combustion Engine - An Experimental Study SAE Technical Paper 780329 1978 https://doi.org/10.4271/780329
- Sher , E. , Ben-Ya’Ish , J. , Pokryvailo , A. , and Spector , Y. A Corona Spark Plug System for Spark-Ignition Engines SAE Technical Paper 920810 1992 https://doi.org/10.4271/920810
- Attard , W. , and Blaxill , H. A Single Fuel Pre-Chamber Jet Ignition Powertrain Achieving High Load, High Efficiency and Near Zero NOx Emissions SAE Technical Paper 2011-01-2023 2011 https://doi.org/10.4271/2011-01-2023
- Biswas , S. , Tanvir , S. , Wang , H. , and Qiao , L. On ignition Mechanisms of Premixed CH4/Air and H2/Air Using a Hot Turbulent Jet Generated by Pre-Chamber Combustion Appl Therm Eng. 106 925 937 2016 10.1016/j.applthermaleng.2016.06.070
- Gentz , G.R. , Gholamisheeri , M. , and Toulson , E. A Study of a Turbulent Jet Ignition System Fueled with Iso-Octane: Pressure Trace Analysis and Combustion Visualization Appl Energy. 189 385 394 2017 10.1016/j.apenergy.2016.12.055
- Shah , A. , Tunestal , P. , and Johansson , B. Effect of Pre-Chamber Volume and Nozzle Diameter on Pre-Chamber Ignition in Heavy Duty Natural Gas Engines SAE Technical Paper 2015-01-0867 2015 https://doi.org/10.4271/2015-01-0867
- Gholamisheeri , M. , Thelen , B.C. , Gentz , G.R. , Wichman , I.S. , and Toulson , E. Rapid Compression Machine Study of a Premixed, Variable Inlet Density and Flow Rate, Confined Turbulent Jet Combust Flame. 169 321 332 2016 10.1016/j.combustflame.2016.05.001
- Gholamisheeri , M. , Wichman , I.S. , and Toulson , E. A Study of the Turbulent Jet Flow Field in a Methane Fueled Turbulent Jet Ignition (TJI) System Combust Flame 183 194 206 2017 10.1016/j.combustflame.2017.05.008
- Vedula , R.T. , Gentz , G. , Stuecken , T. , Toulson , E. , and Schock , H. Lean Burn Combustion of Iso-Octane in a Rapid Compression Machine Using Dual Mode Turbulent Jet Ignition System SAE Int J Engines 11 1 2018 https://doi.org/10.4271/03-11-01-0007
- Aronsson , U. , Chartier , C. , Horn , U. , Andersson , Ö. et al. Heat Release Comparison Between Optical and All-Metal HSDI Diesel Engines SAE Technical Paper 2008-01-1062 2008 https://doi.org/10.4271/2008-01-1062
- Colban , W.F. , Kim , D. , Miles , P.C. et al. A Detailed Comparison of Emissions and Combustion Performance Between Optical and Metal Single-Cylinder Diesel Engines at Low Temperature Combustion Conditions SAE Int J Fuels Lubr. 1 1 505 519 2009 https://doi.org/10.4271/2008-01-1066
- Kashdan , J.T. , and Thirouard , B. A Comparison Of Combustion and Emissions behaviour in Optical and Metal Single-Cylinder Diesel Engines SAE Technical Paper 2009-01-1963 2009 https://doi.org/10.4271/2009-01-1963
- Kashdan , J. , and Thirouard , B. Optical Engines as Representative Tools in the Development of New Combustion Engine Concepts Oil Gas Sci Technol. 66 5 759 777 2011 10.2516/ogst/2011134
- Bowditch , F.W. A New Tool for Combustion Research a Quartz Piston Engine SAE Technical Paper 610002 1961 https://doi.org/10.4271/610002
- Gehmlich , R.K. , Dumitrescu , C.E. , Wang , Y. , and Mueller , C.J. Leaner Lifted-Flame Combustion Enabled by the Use of an Oxygenated Fuel in an Optical CI Engine SAE Int J Engines 9 3 2016 https://doi.org/10.4271/2016-01-0730
- Liu , J. , and Dumitrescu , C.E. Flame Development Analysis in a Diesel Optical Engine Converted to Spark Ignition Natural Gas Operation Appl Energy 230 1205 1217 2018 10.1016/j.apenergy.2018.09.059
- Echeverri Marquez , M. , Hlaing , P. , Tang , Q. et al. High-Speed Imaging of Main-Chamber Combustion of a Narrow Throat Pre-Chamber under Lean Conditions SAE Technical Paper 2020-01-2081 2020 https://doi.org/10.4271/2020-01-2081
- Tang , Q. , An , Y. , Raman , V. et al. Experimental Study on the Effects of Spray-Wall Interaction on Partially Premixed Combustion and Engine Emissions Energy and Fuels 33 6 5673 5681 2019 https://doi.org/10.1021/acs.energyfuels.9b00602
- Wang , Z. , Bovik , A.C. , Sheikh , H.R. , and Simoncelli , E.P. Image Quality Assessment: From Error Visibility to Structural Similarity IEEE Trans Image Process 13 4 600 612 2004 https://doi.org/10.1109/TIP.2003.819861
- Hlaing , P. , Echeverri Marquez , M. , Bhavani Shankar , V.S. , Cenker , E. et al. A Study of Lean Burn Pre-Chamber Concept in a Heavy Duty Engine SAE Technical Paper 2019-24-0107 2019 https://doi.org/10.4271/2019-24-0107
- Hlaing , P. , Echeverri Marquez , M. , Singh , E. , Cenker , E. et al. Effects of Pre-Chamber Enrichment on Lean Burn Pre-chamber Spark Ignition Combustion with a Narrow-Throat Geometry SAE Technical Paper 2020-01-0825 2020 https://doi.org/10.4271/2020-01-0825
- Almatrafi , F. , Hlaing , P. , Echeverri Marquez , M. , Ben Houidi , M. , and Johansson , B. Narrow-Throat Pre-Chamber Combustion with Ethanol, a Comparison with Methane SAE Technical Papers 2020-01-2041 2020 https://doi.org/10.4271/2020-01-2041
- Johansson , B. , and Olsson , K. Combustion Chambers for Natural Gas Si Engines PART I: Fluid Flow and Combustion SAE Technical Paper 950469 1995 https://doi.org/10.4271/950469
- Hlaing , P. , Echeverri Marquez , M. , Cenker , E. , Houidi , M.B. , and Johansson , B. Analysis of Fuel Properties on Main Chamber Combustion Characteristics in a Narrow-Throat Pre-Chamber Engine SAE Technical Paper 2019-01-0474 2021 https://doi.org/10.4271/2019-24-0107
- Duong , J. , Wellander , R. , Hyvönen , J. , et al. High Speed Combustion Imaging in a Large Bore Gas Engine: The Relationship Between Pre- and Main Chamber Heat Release Volume 8A: Heat Transfer and Thermal Engineering ASME 2014 10.1115/imece2013-64286
- Tang , Q. , Sampath , R. , Echeverri Marquez , M. et al. Simultaneous Negative PLIF and OH* Chemiluminescence Imaging of the Gas Exchange and Flame Jet from a Narrow Throat Pre-Chamber SAE Technical Paper 2020-01-2080 2020 https://doi.org/10.4271/2020-01-2080
- Gussak , L.A. , Karpov , V.P. , and Tikhonov , Y.V. The Application of Lag-Process in Prechamber Engines SAE Technical Paper 790692 1979 https://doi.org/10.4271/790692
- Olsson , K. , and Johansson , B. Combustion Chambers for Natural Gas Si Engines Part 2: Combustion and Emissions SAE Technical Paper 950517 1995 https://doi.org/10.4271/950517
- Liu , J. , and Dumitrescu , C. CFD Simulation of Metal and Optical Configuration of a Heavy-Duty CI Engine Converted to SI Natural Gas. Part 1: Combustion Behavior SAE Technical Paper 2019-01-0002 2019 https://doi.org/10.4271/2019-01-0002
- Liu , J. , and Dumitrescu , C. CFD Simulation of Metal and Optical Configuration of a Heavy-Duty CI Engine Converted to SI Natural Gas. Part 2: In-Cylinder Flow and Emissions SAE Technical Paper 2019-01-0003 2019 https://doi.org/10.4271/2019-01-0003
- Johansson , B. Combustion Engines Volume 1 Lund University 2014