This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Plasma Assisted Ignition Effects on a DISI Engine Fueled with Gasoline and Butanol under Lean Conditions and with EGR
Technical Paper
2016-01-0710
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Considering the generalized diversification of the energy mix, the use of alcohols as gasoline replacement is proposed as a viable option. Also, alternative control strategies for spark ignition engines (SI) such as lean operation and exhaust gas recirculation (EGR) are used on an ever wider scale for improving fuel economy and reducing the environmental impact of automotive engines. In order to increase the stability of these operating points, alternative ignition systems are currently investigated. Within this context, the present work deals about the use of plasma assisted ignition (PAI) in a direct injection (DI) SI engine under lean conditions and cooled EGR, with gasoline and n-butanol fueling. The PAI system was tested in an optically accessible single-cylinder DISI engine equipped with the head of a commercial turbocharged power unit with similar geometrical specifications (bore, stroke, compression ratio). All experiments were performed at 2000 rpm and 100 bar injection pressure. Optical accessibility through the piston crown allowed the application of two different techniques, UV-visible 2D chemiluminescence and natural emission spectroscopy. The first one gave information on the flame morphology and the second investigative method ensured insight into the specific processes related to the active chemical species. With the alternative ignition system, an increase in engine stability was obtained and the effects of butanol were related to its different chemical properties compared to gasoline. The differences among in-cylinder pressure data were correlated to the characteristics of flame shape and displacement, especially during the first stages of kernel formation and propagation.
Recommended Content
Authors
Citation
Irimescu, A., Merola, S., Tornatore, C., Valentino, G. et al., "Plasma Assisted Ignition Effects on a DISI Engine Fueled with Gasoline and Butanol under Lean Conditions and with EGR," SAE Technical Paper 2016-01-0710, 2016, https://doi.org/10.4271/2016-01-0710.Also In
References
- Heywood , J.B. Internal Combustion Engine Fundamentals McGraw-Hill NewYork, USA 1988
- Alagumalai , A. Internal combustion engines: Progress and prospects Renew. Sust. Energ. Rev. 31 561 571 2014 10.1016/j.rser.2014.06.014
- Wallner , T. , Lohse-Busch , H. , Shidore , N. Operating strategy for a hydrogen engine for improved drive-cycle efficiency and emissions behavior Int. J. Hydrogen Energ. 34 10 4617 4625 2009 10.1016/j.ijhydene.2008.07.099
- Alger , T. , Gingrich , J. , and Mangold , B. The Effect of Hydrogen Enrichment on EGR Tolerance in Spark Ignited Engines SAE Technical Paper 2007-01-0475 2007 10.4271/2007-01-0475
- Ashida , K. , Hoshino , M. , Maeda , H. , Araki , T. et al. Study of Reformate Hydrogen-Added Combustion in a Gasoline Engine SAE Technical Paper 2015-01-1952 2015 10.4271/2015-01-1952
- Briggs , T. , Alger , T. , and Mangold , B. Advanced Ignition Systems Evaluations for High-Dilution SI Engines SAE Int. J. Engines 7 4 1802 1807 2014 10.4271/2014-01-2625
- Aleiferis , P.G. , Hardalupas , Y. , Taylor , A.M.K.P. , Ishii , K. , Urata , Y. Flame chemiluminescence studies of cyclic combustion variations and air-to-fuel ratio of the reacting mixture in a lean-burn stratified charge spark-ignition engine Combust. Flame 136 1-2 72 90 2004 10.1016/j.combustflame.2003.09.004
- Aleiferis , P.G. , Serras-Pereira , J. , Richardson , D. Characterisation of flame development with ethanol, butanol, iso-octane, gasoline and methane in a direct-injection spark-ignition engine Fuel 109 256 278 2013 10.1016/j.fuel.2012.12.088
- Irimescu , A. , Merola , S. , Tornatore , C. , and Valentino , G. Effect of Control Parameters in an Optical DISI Engine with Gasoline-Butanol Fueling SAE Technical Paper 2015-01-1944 2015 10.4271/2015-01-1944
- Irimescu , A. , Tornatore , C. , Merola , S. , and Valentino , G. Combustion Process Investigation in a DISI Engine Fuelled with nbutanol Through Digital Imaging and Chemiluminescence SAE Technical Paper 2015-01-1887 2015 10.4271/2015-01-1887
- Merola , S. , Irimescu , A. , Valentino , G. , Tornatore , C. et al. Experimental Evaluation of an Advanced Ignition System for GDI Engines SAE Int. J. Engines 8 5 2351 2367 2015 10.4271/2015-24-2520
- Ju , Y. , and Sun , W. 2015 Plasma assisted combustion: Dynamics and chemistry Prog. Energ. Combust. Sci. 48 21 83 2015
- Merola , S. S. , Marchitto , L. , Tornatore , C. , Valentino , G. , and Irimescu , A. Optical characterization of combustion processes in a DISI engine equipped with plasma-assisted ignition system Appl. Therm. Eng. 69 1 177 187 2014
- Singh , S.B. , Dhar , A. , Agarwal , A.K. Technical feasibility study of butanol-gasoline blends for powering medium-duty transportation spark ignition engine Renew. Energ. 76 706 716 2015
- Bowditch , F. A New Tool for Combustion Research A Quartz Piston Engine SAE Technical Paper 610002 1961 10.4271/610002
- Verhelst , S. , Vancoillie , J. , Naganuma , K. , De Paepe , M. , Dierickx , J. , Huyghebaert , Y. , Wallner , T. Setting a best practice for determining the EGR rate in hydrogen internal combustion engines Int. J. Hydrogen Energ. 38 5 2490 2503 2013 10.1016/j.ijhydene.2012.11.138
- Das , M.K. , Thynell , S.T. Corona, Spark, and Electrothermal-Chemical Plasma Ignition Systems Part 5. New Technologies 2010 Wiley-VCH Verlag GmbH & Co. 10.1002/9783527628148.hoc074
- Laux , C. O. Optical diagnostics and radiative emission of air plasmas PhD Thesis Mechanical Engineering Stanford University Stanford, CA, USA 1993
- Xu , R. , Di Guida , O. A. Comparison of sizing small particles using different technologies Powder Technology 132 2 145 153 2003
- Hentschel , M. L. , & Page , N. W. Selection of descriptors for particle shape characterization Particle & Particle Systems Characterization 20 1 25 38 2003 10.1002/ppsc.200390002
- Schenk , M. , Wolf , T. , Schröter , M. , Zellinger , F. , Klaus , B. , Pfeiffer , D. , Fischer , H. Corona-Ignition vs. Spark Ignition: A Fundamental Comparison for varying thermodynamic conditions of modern turbocharged Gasoline Engines SIA Powertrain The low CO2 spark ignition engine of the future and its hybridization May 27 & 28, 2015 Versailles, France 10
- Lee , S. , Park , S. , Kim , C. , Kim , Y.M. , Kim , Y. , Park C. Comparative study on EGR and lean burn strategies employed in an SI engine fueled by low calorific gas Appl. Energ. 129 10 16 2014 10.1016/j.apenergy.2014.04.082
- Irimescu , A. , Tornatore , C. , Merola , S.S. , Valentino , G. Integrated Diagnostics for Combustion Investigation in a DISI Engine Fueled with Butanol and Gasoline at Different Load Settings Colloquium Fuels - Conventional and Future Energy for Automobiles 20 - 22 January 2015 Stuttgart/Ostfildern, Germany 117 128 2015
- Merola , S. , Irimescu , A. , Tornatore , C. , Marchitto , L. et al. Split Injection in a DISI Engine Fuelled with Butanol and Gasoline Analyzed through Integrated Methodologies SAE Int. J. Engines 8 2 474 494 2015 10.4271/2015-01-0748
- Irimescu , A. Air-fuel h-x- diagram for gasoline-isobutanol blends Proc. Rom. Acad. Ser. A 11 4 322 329 2010
- Gaydon , A.G. The spectroscopy of flames London Chapman and Hall, UK 1957
- Luque , J. and Crosley , D.R. LIFBASE: Database and spectral simulation (version 1.5) SRI International Report MP 99-009 1999
- Janda , M. , Machala , Z. Transient-Spark Discharge in Mixtures at Atmospheric Pressure Plasma Science, IEEE Transactions on 36 4 916 917 2008 10.1109/TPS.2008.917172
- Merola , S.S. , Irimescu , A. , Tornatore , C. , Valentino , G. Effect of the fuel injection strategy on flame front evolution in an optical wall guided DISI engine with gasoline-butanol fueling J. Energ. Eng. 10.1061/(ASCE)EY.1943-7897.0000301 2015