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Investigation of Late Stage Conventional Diesel Combustion - Effect of Additives
Technical Paper
2018-01-1787
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The accepted model of conventional diesel combustion [1] assumes a rich premixed flame slightly downstream of the maximum liquid penetration. The soot generated by this rich premixed flame is burnt out by a subsequent diffusion flame at the head of the jet. Even in situations in which the centre of combustion (CA50) is phased optimally to maximize efficiency, slow late stage combustion can still have a significant detrimental impact on thermal efficiency.
Data is presented on potential late-stage combustion improvers in a EURO VI compliant HD engine at a range of speed and load points. The operating conditions (e.g. injection timings, EGR levels) were based on a EURO VI calibration which targets 3 g/kWh of engine-out NOx. Rates of heat release were determined from the pressure sensor data. To investigate late stage combustion, focus was made on the position in the cycle at which 90% of the fuel had combusted (CA90).
An EN590 compliant fuel was tested. To this fuel was added an organic compound, commonly encountered in sunscreen products, that was designed to absorb ultraviolet light. Such a material is postulated to speed up the late stage combustion and thereby improve the thermal efficiency. It was found that both the CA90 and the CA50 were advanced by addition of this material. There is evidence to suggest that addition of the material particularly effects the late stages of combustion, and that it works in a different way to a conventional diesel ignition improver.
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Authors
- P.C. Bakker - Eindhoven University of Technology
- Robbert Willems - Eindhoven University of Technology
- Nico Dam - Eindhoven University of Technology
- Bart Somers - Eindhoven University of Technology
- Caroline Wakefield - Shell Global Solutions (UK)
- Mark Brewer - Shell Global Solutions (UK)
- Roger Cracknell - Shell Global Solutions (UK)
Topic
Citation
Bakker, P., Willems, R., Dam, N., Somers, B. et al., "Investigation of Late Stage Conventional Diesel Combustion - Effect of Additives," SAE Technical Paper 2018-01-1787, 2018, https://doi.org/10.4271/2018-01-1787.Data Sets - Support Documents
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References
- Dec , J. A Conceptual Model of DI Diesel Combustion Based on Laser-Sheet Imaging SAE Technical Paper 970873 1997 10.4271/970873
- Akihama , K. , Takatori , Y. , Inagaki , K. , Sasaki , S. et al. Mechanism of the Smokeless Rich Diesel Combustion by Reducing Temperature SAE Technical Paper 2001-01-0655 2001 10.4271/2001-01-0655
- Kimura , S. , Aoki , O. , Ogawa , H. , Muranaka , S. et al. New Combustion Concept for Ultra-Clean and High-Efficiency Small DI Diesel Engines SAE Technical Paper 1999-01-3681 1999 10.4271/1999-01-3681
- Kalghatgi , G. , Risberg , P. , and Angstrom , H. Partially Pre-Mixed Auto-Ignition of Gasoline to Attain Low Smoke and Low NOx at High Load in a Compression Ignition Engine and Comparison with a Diesel Fuel SAE Technical Paper 2007-01-0006 2007 10.4271/2007-01-0006
- Ciatti , S.A. , Subramainian , S. , and Ferris , A. Proceedings ASME 2012 Internal Combustion Engine Division Spring Technical Conference May 6-9 2012 Torino, Piemonte, Italy 215 223
- Rabl , S. , Davies , T.J. , McDougall , A.P. , and Cracknell , R.F. Proceedings of the Combustion Institute 35 2967 2974 2015
- Musculus , M.P.B. , Miles , P.C. , and Pickett , L.M. Prog. Energy Combust. Sci. 39 283 2 246 3 2013
- Heywood , J.R. Internal Combustion Engine Fundamentals Third McGraw Hill 1988
- Desantes , J. , Arrègle , J. , López , J. , and García , A. A Comprehensive Study of Diesel Combustion and Emissions with Post-injection SAE Technical Paper 2007-01-0915 2007 10.4271/2007-01-0915
- Menkiel , B. , Donkerbroek , A. , Uitz , R. , Cracknell , R. , and Ganippa , L. Measurement of In-Cylinder Soot Particles and Their Distribution in an Optical HSDI Diesel Engine Using Time Resolved Laser Induced Incandescence (TR-LII) Combust Flame 159 2985 2998 2012
- Menkiel , B. , Donkerbroek , A. , Uitz , R. , Cracknell , R.F. et al. Combustion and Soot Processes of Diesel and Rapeseed Methyl Ester in an Optical Diesel Engine Fuel 118 406 415 2014
- Gehmlich , R. , Dumitrescu , C. , Wang , Y. , and Mueller , C. Leaner Lifted-Flame Combustion Enabled by the Use of an Oxygenated Fuel in an Optical CI Engine SAE Int. J. Engines 9 3 2016
- Brunt , M. , Rai , H. , and Emtage , A. The Calculation of Heat Release Energy from Engine Cylinder Pressure Data SAE Technical Paper 981052 1998 10.4271/981052
- Christian , R. , Knopf , F. , Jaschek , A. , and Schindler , W. Eine Neue Messmethodik der Bosch-zahl mit Erhörter Empfindlichkeit MTZ 54 16 22 1993
- EU Directive 1999/96/EC Official Journal of the European Communities http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:31999L0096 1999
- Richards , P. SAE Automotive Fuels Reference Book Third Warrendale, PA SAE International
- Brewer , M.