This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fuel Burn Rate Control to Improve Load Capability of Neat n-Butanol Combustion in a Modern Diesel Engine
Technical Paper
2016-01-2301
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This research work investigates the control strategies of fuel burn rate of neat n-butanol combustion to improve the engine load capability. Engine tests of homogeneous charge compression ignition (HCCI) and partially premixed combustion (PPC) with neat n-butanol show promising NOx and smoke emissions; however, the rapid burn rate of n-butanol results in excessive pressure rise rates and limits the engine load capability. A multi-event combustion strategy is developed to modulate the fuel burn rate of the combustion cycle and thus to reduce the otherwise high pressure rise rates at higher engine load levels. In the multi-event combustion strategy, the first combustion event is produced near TDC by the compression ignition of the port injected butanol that resembles the HCCI combustion; the second combustion event occurs near 7~12 degrees after TDC, which is produced by butanol direct injection (DI) after the first HCCI-like combustion event. A third combustion event can also be enabled, via post DI, to further top up the engine load as needed. As demonstrated by the test results, the peak pressure rise rates can be curbed by controlling the amount of fuel burn during the first combustion event. Due to the temperature and pressure increases from the first HCCI-like combustion event, the ignition delay of DI butanol is significantly shortened, and the fuel burn rate is well controlled similar to that of conventional diesel diffusion burning. As one of the advantages of an oxygenated fuel, smoke emissions are generally low even when EGR is applied to reduce NOx emissions. By applying the multi-event combustion strategy, the maximum pressure rise rates can be reduced from over 20 bar/°CA in HCCI and PPC to 5~7 bar/°CA that is in the preferred range for modern production diesel engines. The engine load capability is thereafter improved from ~7 bar IMEP to over 14 bar IMEP while the pressure rise rate remains below the practical limits.
Recommended Content
Authors
Topic
Citation
Han, X., Tan, Q., Wang, M., Tjong, J. et al., "Fuel Burn Rate Control to Improve Load Capability of Neat n-Butanol Combustion in a Modern Diesel Engine," SAE Technical Paper 2016-01-2301, 2016, https://doi.org/10.4271/2016-01-2301.Also In
References
- Johnson DT , Taconi KA The glycerin glut: options for the value-added conversion of crude glycerol resulting from biodiesel production Environ Prog. 2007 26 338 348
- Rahmat N , Abdullah AZ , Mohamed AR Recent progress on innovative and potential technologies for glycerol transformation in to fuel additives: a critical review Renew Sust Energy Rev 2010 14 987 1000
- Szwaja A , Naber JD Combustion of n-butanol in a spark-ignition IC engine Fuel 89 2010 1573 1582
- Rakopoulos DC , Rakopoulos CD , Hountalas DT , Kakaras EC , Giakoumis EG , Papagiannakis RG Investigation of the performance and emissions of a bus engine operating on butanol/diesel fuel blends Fuel 2010 89 2781 2790
- Rakopoulos CD , Dimaratos AM , Giakoumis EG , Rakopoulos DC Investigating the emissions during acceleration of a turbocharged diesel engine operating with bio-diesel or n-butanol diesel fuel blends Energy 2010 35 5173 5184
- Rakopoulos DC , Rakopoulos CD , Papagiannakis RG , Kyritsis DC Combustion heat release analysis of ethanol or n-butanol diesel fuel blends in heavy-duty DI diesel engine Fuel 2011 90 1855 1867
- Yacoub Y , Bara R , Gautam M The performance and emission characteristics of C1-C5 alcohol-gasoline blends with matched oxygen content in a single-cylinder spark ignition engine P. IMech (A) J Power Energy 1998 212 363 379
- Cooney C , Wallner T , McConnell S et al. Effects of blending gasoline with ethanol and butanol on engine efficiency and emissions The 2009 ASME ICE Spring Conference ICES 2009-76155 Milwaukee, Wisconsin, USA 2006
- Dogan O. The influence of n-butanol/diesel fuel blends utilization on a small diesel engine performance and emissions Fuel 2011 90 2467 2472
- Ballesteros R , Hernandez JJ , Guillen-Flores J Carbonyls speciation in a typical European automotive diesel engine using bioethanol/butanol-diesel blends Fuel 2012 95 136 145
- Valentino G , Corcione FE , Iannuzzi SE , Serra S Experimental study on performance and emissions of a high speed diesel engine fuelled with n-butanol diesel blends under premixed low temperature combustion Fuel 2012 92 295 307
- Merola SS , Tornatore C , Lannuzzi SE , Marchitto L , Valentino G Combustion process investigation in a high speed diesel engine fuelled with n-butanol diesel blend by conventional methods and optical diagnostics Renewable Energy 2014 64 225 237
- Siwale L , Kristof L , Adam T , Bereczky A , Mbarawa M , Penninger A , Kolesnikov A Combustion and emission characteristics of n-butanol/diesel fuel blend in a turbocharged compression ignition engine Fuel 2013 107 409 418
- He BQ , Yuan J , Liu MB , Zhao H Combustion and emission characteristics of an n-butanol HCCI engine Fuel 2014 115 758 764
- Han , X. , Wang , M. , and Zheng , M. An Enabling Study of Neat n-Butanol HCCI Combustion on a High Compression-ratio Diesel Engine SAE Technical Paper 2015-01-0001 2015 10.4271/2015-01-0001
- Zheng , M. , Han , X. , Asad , U. , and Wang , J. Investigation of butanol-fuelled HCCI combustion on a high efficiency diesel engine Energy Conversion and Management 98 July 1 2015 215 224
- Han , X. , Zheng , M. , Tjong , J. , and Li , T. Suitability Study of n-Butanol for Enabling PCCI and HCCI and RCCI Combustion on a High Compression-ratio Diesel Engine SAE Technical Paper 2015-01-1816 2015 10.4271/2015-01-1816
- Xie , K. , Yanai , T. , Yang , Z. , Reader , G. et al. Emission Analysis of HCCI Combustion in a Diesel Engine Fueled by Butanol SAE Technical Paper 2016-01-0749 2016 10.4271/2016-01-0749
- Han X , Zheng M , Wang J Fuel suitability for low temperature combustion in compression ignition engines Fuel 2013 109 336 349
- Yanai , T. , Han , X. , Wang , M. , Reader , G. et al. Clean Combustion in a Diesel Engine Using Direct Injection of Neat n-Butanol SAE Technical Paper 2014-01-1298 2014 10.4271/2014-01-1298
- Han , X. , Wang , M. , and Zheng , M. Study of Low Temperature Combustion with Neat n-Butanol on a Common-rail Diesel Engine SAE Technical Paper 2015-01-0003 2015 10.4271/2015-01-0003
- Yanai , T. , Dev , S. , Han , X. , Zheng , M. et al. Impact of Fuelling Techniques on Neat n-Butanol Combustion and Emissions in a Compression Ignition Engine SAE Int. J. Engines 8 2 735 746 2015 10.4271/2015-01-0808
- Sun , Y. and Reitz , R. Adaptive Injection Strategies (AIS) for Ultra-Low Emissions Diesel Engines SAE Technical Paper 2008-01-0058 2008 10.4271/2008-01-0058
- Sun , Y. and Reitz , R. Modeling Diesel Engine NOx and Soot Reduction with Optimized Two-Stage Combustion SAE Technical Paper 2006-01-0027 2006 10.4271/2006-01-0027
- Kokjohn , S. and Reitz , R. A Computational Investigation of Two-Stage Combustion in a Light-Duty Engine SAE Int. J. Engines 1 1 1083 1104 2009 10.4271/2008-01-2412
- Wissink , M. and Reitz , R. Direct Dual Fuel Stratification, a Path to Combine the Benefits of RCCI and PPC SAE Int. J. Engines 8 2 878 889 2015 10.4271/2015-01-0856
- Hanson , R. , Ickes , A. , and Wallner , T. Use of adaptive injection strategies to increase the full load limit of RCCI operation Proceedings of the ASME ICEF conference, ICEF2015-1115 2015
- Reader , G.T. , Asad , U. , and Zheng , M. Energy efficiency trade-off with phasing of HCCI combustion International Journal of Energy Research 37 3
- Han , X. , Li , T. , Zheng , M. Direct injection of neat n-butanol for enabling clean low temperature combustion in a modern diesel engine Fuel 142 2015 28 37
- Horibe , N. , Komizo , T. , Sumimoto , T. , Wang , H. et al. Smoke Reduction Effects by Post Injection for Various Injection Parameters and Combustion Chamber Shapes in a Diesel Engine SAE Technical Paper 2014-01-2634 2014 10.4271/2014-01-2634