This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Numerical Simulations of Pre-Chamber Induced HCCI Combustion (PC-HCCI)
Technical Paper
2023-01-0274
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Advanced combustion concepts that rely on the lean-burn approach are a proven solution for increasing the efficiency and reducing the harmful emissions of SI engines. The pre-chamber spark ignited (PCSI) engines utilize high ignition energy of the multiple jets penetrating from the pre-chamber, to enable fast and stable combustion of lean mixture in the main chamber. The combustion is still governed by the flame propagation, so the dilution level and efficiency benefits are highly restricted by strong decrease of laminar flame speeds. Homogeneous charge compression ignition (HCCI) combustion allows a higher dilution level due to rapid chemically driven combustion, however the inability to directly control the ignition timing has proven to be a major setback in HCCI deployment. The addition of the spark plug, to improve the controllability and widen the operating range, resulted in a combustion concept known as spark-assisted compression ignition (SACI), however spark ignition of lean mixtures is very difficult even at close to HCCI conditions. Since one of the features of active pre-chamber is the ability to control mixture dilution at the spark plug location, a combustion concept called pre-chamber induced HCCI combustion (PC-HCCI) that combines pre-chamber ignition and HCCI combustion is proposed. In this concept a near stoichiometric mixture in the pre-chamber is spark ignited and the combustion in pre-chamber triggers kinetically controlled combustion of lean main combustion chamber mixture. As a first step of the research, numerical modelling of the proposed combustion concept is made by employing 3D-CFD and 1D/0D simulation models. The main purpose of the modelling is to define main geometrical and operating parameters required for achieving a pre-chamber induced HCCI combustion and to predict possible benefits of employing such combustion concept.
Authors
Topic
Citation
Krajnovic, J., Dilber, V., Tomic, R., Sjeric, M. et al., "Numerical Simulations of Pre-Chamber Induced HCCI Combustion (PC-HCCI)," SAE Technical Paper 2023-01-0274, 2023, https://doi.org/10.4271/2023-01-0274.Also In
References
- Onishi , S. , Jo , S.H. , Shoda , K. , Jo , P.D. et al. Active Thermo-Atmosphere Combustion – A New Combustion Process for Internal Combustion Engines SAE Technical Paper 790501 1979 https://doi.org/10.4271/790501
- Noguchi , M. , Tanaka , Y. , Tanaka , T. , and Takeuchi , Y. A Study on Gasoline Engine Combustion by Observation of Intermediate Reactive Products during Combustion SAE Technical Paper 790840 1979 https://doi.org/10.4271/790840
- Yao , M. , Zheng , Z. , and Liu , H. Progress and Recent Trends in Homogeneous Charge Compression Ignition (HCCI) Engines Prog. Energ. Combust. 35 5 2009 398 497 10.1016/j.pecs.2009.05.001
- Dec , J.E. and Yang , Y. Boosted HCCI for High Power without Engine Knock and with Ultra-Low NOx Emissions - using Conventional Gasoline International Journal of Engines 3 1 2010 750 767 https://doi.org/10.4271/2010-01-1086
- Vucetic , A. , Bozic , M. , Kozarac , D. , and Lulic , Z. Characterisation of the Combustion Process in the Spark Ignition and HCCI Engine Thermal Science 22 5 2018 2025 2037
- Zao , H. HCCI and CAI Engines for Automotive Industry Cambridge, England Woodhead Publishing Ltd 2007 978-1-84569-128-8
- Yang , Y. , Dec , J. , Dronniou , N. , Sjöberg , M. et al. Partial Fuel Stratification to Control HCCI Heat Release Rates: Fuel Composition and Other Factors Affecting Pre-Ignition Reactions of Two-Stage Ignition Fuels SAE Int. J. Engines 4 1 2011 1903 1920 https://doi.org/10.4271/2011-01-1359
- Robertson , D. and Prucka , R. A Review of Spark-Assisted Compression Ignition (SACI) Research in the Context of Realizing Production Control Strategies SAE Technical Paper 2019-24-0027 2019 https://doi.org/10.4271/2019-24-0027
- Marriott , C. and Reitz , R. Experimental Investigation of Direct Injection-Gasoline for Premixed Compression Ignited Combustion Phasing Control SAE Technical Paper 2002-01-0418 2002 https://doi.org/10.4271/2002-01-0418
- Kokjohn , S.L. , Hanson , R.M. , Splitter , D.A. , and Reitz , R.D. Fuel Reactivity Controlled Compression Ignition (RCCI): A Pathway to Controlled High-Efficiency Clean Combustion International Journal of Engine Research 12 3 2011 209 226 10.1177/1468087411401548
- Ugrinić , S. , Dilber , V. , Sjerić , M. , Kozarac , D. et al. Experimental Study of Pre-Chamber Geometry Influence on Performance and Emissions in a Gasoline Spark Ignited Engine SAE Technical Paper 2022-01-1008 2022 https://doi.org/10.4271/2022-01-1008
- Gentz , G. , Gholamisheeri , M. , and Toulson , E. A Study of a Turbulent Jet Ignition System Fueled with ISO-Octane: Pressure Trace Analysis and Combustion Visualization Applied Energy 189 2017 385 394 https://doi.org/10.1016/j.apenergy.2016.12.055
- Koch , D. , Berger , V. , Bittel , A. , Gschwandtner , M. et al. Investigation of an Innovative Combustion Process for High-Performance Engines and Its Impact on Emissions SAE Technical Paper 2019-01-0039 2019 https://doi.org/10.4271/2019-01-0039
- Esfahanian , V. , Salahi , M.M. , Gharehghani , A. , and Mirsalim , M. Extending the Lean Operating Range of a Premixed Charged Compression Ignition Natural Gas Engine Using a Pre-Chamber Energy 119 2017 1181 1194
- Heyne , S. , Meier , M. , Imbert , B. , and Favrat , D. Experimental investigation of prechamber autoignition in a natural gas engine for cogeneration Fuel 88 3 2009 547 552
- Vučetić , A. 2018
- Krajnovic , J. , Dilber , V. , Sjeric , M. , Tomic , R. et al. Development of Numerical Framework for Research of the Pre - Chamber SI Combustion SAE Technical Paper 2022-01-0387 2022 https://doi.org/10.4271/2022-01-0387
- TM
- Dilber , V. , Sjeric , M. , Tomić , R. , Krajnović , J. et al. Optimization of Pre-Chamber Geometry and Operating Parameters in a Turbulent Jet Ignition Engine Energies 2022 10.3390/en15134758
- Saric , S. and Basara , B. A Hybrid Wall Heat Transfer Model for IC Engine Simulations SAE Int. J. Engines 8 2 2015 411 418 https://doi.org/10.4271/2015-01-0388
- Ilinčić , P. 2015
- Chen , Y.-H. , and Chen , J.Y. Development of Isooctane Skeletal Mechanisms for Fast and Accurate Predictions of SOC and Emissions of HCCI Engines Based on LLNL Detailed Mechanism 2005 Fall Meeting Western States Combustion Institute Stanford, CA 2005
- Curran , H.J. , Gaffuri , P. , Pitz , W.J. , and C. K. Westbrook: Comprehensive Modeling Study of ISO-Octane Oxidation Combustion and Flame 129 2002 253 280