This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Thermal Analysis of Steel and Aluminium Pistons for an HSDI Diesel Engine
Technical Paper
2019-01-0546
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Chromium-molybdenum alloy steel pistons, which have been used in commercial vehicle applications for some time, have more recently been proposed as a means of improving thermal efficiency in light-duty applications. This work reports a comparison of the effects of geometrically similar aluminium and steel pistons on the combustion characteristics and energy flows on a single cylinder high-speed direct injection diesel research engine tested at two speed / load conditions (1500 rpm / 6.9 bar nIMEP and 2000 rpm/25.8 bar nIMEP) both with and without EGR. The results indicate that changing to an alloy steel piston can provide a significant benefit in brake thermal efficiency at part-load and a reduced (but non-negligible) benefit at the high-load condition and also a reduction in fuel consumption. These benefits were attributed primarily to a reduction in friction losses. In terms of energy transfer, switching to the steel piston design was shown to reduce heat transfer to the coolant, consistent with lower friction work and reduced conduction through the ring pack, and increase the energy transfer to the oil. Piston blowby was also greatly reduced. Ignition delay times and overall combustion durations were reduced with the steel piston design, possibly indicative of higher piston surface temperatures.
Recommended Content
Authors
Topic
Citation
Papaioannou, N., Leach, F., and Davy, M., "Thermal Analysis of Steel and Aluminium Pistons for an HSDI Diesel Engine," SAE Technical Paper 2019-01-0546, 2019, https://doi.org/10.4271/2019-01-0546.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 | ||
| Unnamed Dataset 6 | ||
| Unnamed Dataset 7 |
Also In
References
- Johnson , T. and Joshi , A. Review of Vehicle Engine Efficiency and Emissions SAE Technical Paper 2017-01-0907 2017 10.4271/2017-01-0907
- Smith , L. , Preston , W. , Dowd , G. , Taylor , O. et al. Application of a First Law Heat Balance Method to a Turbocharged Automotive Diesel Engine SAE Technical Paper 2009-01-2744 2009 10.4271/2009-01-2744
- Papaioannou , N. et al. Evaluation of Exhaust Gas Recirculation Techniques on a High-Speed Direct Injection Diesel Engine Using First Law Analysis Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 10.1177/0954407017749110
- Binder , C. et al. Heat Loss Analysis of a Steel Piston and a YSZ Coated Piston in a Heavy-Duty Diesel Engine Using Phosphor Thermometry Measurements SAE Int. J. Engines 10 4 1954 1968 2017 10.4271/2017-01-1046
- Dickey , D. The Effect of Insulated Combustion Chamber Surfaces on Direct-Injected Diesel Engine Performance, Emissions and Combustion SAE Technical Paper 890292 1989 10.4271/890292
- Kimura , S. , Matsui , Y. , and Itoh , T. Effects of Combustion Chamber Insulation on the Heat Rejection and Thermal Efficiency of Diesel Engines SAE Technical Paper 920543 1992 10.4271/920543
- Kosaka , H. et al. Concept of “Temperature Swing Heat Insulation” in Combustion Chamber Walls, and Appropriate Thermo-Physical Properties for Heat Insulation Coat SAE Int. J. Engines 6 1 142 149 2013 10.4271/2013-01-0274
- Fukui , K. , Wakisaka , Y. , Nishikawa , K. , Hattori , Y. et al. Development of Instantaneous Temperature Measurement Technique for Combustion Chamber Surface and Verification of Temperature Swing Concept SAE Technical Paper 2016-01-0675 2016 10.4271/2016-01-0675
- Wakisaka , Y. et al. Reduction of Heat Loss and Improvement of Thermal Efficiency by Application of “Temperature Swing” Insulation to Direct-Injection Diesel Engines SAE Int. J. Engines 9 3 1449 1459 2016 10.4271/2016-01-0661
- Kawaguchi , A. , Iguma , H. , Yamashita , H. , Takada , N. et al. Thermo-Swing Wall Insulation Technology; - A Novel Heat Loss Reduction Approach on Engine Combustion Chamber SAE Technical Paper 2016-01-2333 2016 10.4271/2016-01-2333
- Metoki , S. and Negishi , H. Why are NCI Pistons Not Used in Heavy Duty Diesel Engines? SAE Technical Paper 2002-01-0164 2002 10.4271/2002-01-0164
- Kumarasekaran , K. and Safdari , Y. Thermal Stress Analysis of a Novel Design Air-Gap Insulated Piston SAE Technical Paper 941069 1994 10.4271/941069
- Reipert , P. , Mielke , S. , and Essig , G. Pistons of DI-Diesel Engines with Reduced Heat Flow SAE Technical Paper 891899 1989 10.4271/891899
- Schreer , K. et al. Analysis of Aluminum and Steel Pistons-Comparison of Friction, Piston Temperature, and Combustion J. Eng. Gas Turbines Power 136 10 101506 2014 10.1115/1.4027275
- Gabriel , D. and Hettich , T. TopWeld® Steel Piston for High Speed Diesel Engines SAE Technical Paper 2015-01-1723 2015 10.4271/2015-01-1723
- Leach , F. , Ismail , R. , Davy , M. , Weall , A. et al. Comparing the Effect of Fuel/Air Interactions in a Modern High-Speed Light-Duty Diesel Engine SAE Technical Paper 2017-24-0075 2017 10.4271/2017-24-0075
- Stone , R. Introduction to Internal Combustion Engines 4th UK Palgrave Macmillan 2012
- AVL Concerto Application Notes 2015
- Hare , C. and Baines , T. Characterization of Diesel Crankcase Emissions SAE Technical Paper 770719 1977 10.4271/770719
- Clark , N. , Tatli , E. , Barnett , R. , Wayne , W. et al. Characterization and Abatement of Diesel Crankcase Emissions SAE Technical Paper 2006-01-3372 2006 10.4271/2006-01-3372
- Heywood , J.B. Internal Combustion Engine Fundamentals MacGraw-Hill 1988
- Mahle Pistons and Engine Testing 2nd ATZ/MTZ-Fachbuch, Springer Vieweg 2016
- Ladommatos , N. , Xiao , Z. , and Zhao , H. The Effect of Piston Bowl Temperature on Diesel Exhaust Emissions Proceedings of the Institution of Mechanical Engineers Part D: Journal of Automobile Engineering 219 3 371 388 2005 10.1243/095440705X6550
- Rao , V. , Gardiner , D. , and Bardon , M. Effects of Gas Leakage and Crevices on Cold Starting of Engines SAE Technical Paper 940078 1994 10.4271/940078
- Papaioannou , N. , Leach , F. , and Davy , M. Effect of Thermocouple Size on the Measurement of Exhaust Gas Temperature in Internal Combustion Engines SAE Technical Paper 2018-01-1765 2018 10.4271/2018-01-1765