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Effects of Biodiesel Blends on Emissions in Low Temperature Diesel Combustion
Technical Paper
2009-01-0485
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The simultaneous reduction of particulate matter (PM) and nitrous oxides (NOx) emissions form diesel exhaust is key to current research activities. Although various technologies have been introduced to reduce emissions from diesel engines, the in-cylinder reduction of PM and NOx due to improved combustion mechanisms will continue to be an important field in research and development of modern diesel engines. Furthermore increasing prices and question over the availability of diesel fuel derived from crude oil has introduced a growing interest. Hence it is most likely that future diesel engines will be operated on pure biodiesel and/or blends of biodiesel and crude oil-based diesel. In this study the performance of different biodiesel blends under low temperature combustion conditions (i.e., high exhaust gas recirculation and advanced fuel injection schemes) was investigated. Experiments were carried out using a multi-cylinder diesel engine with common rail technology and a low-pressure exhaust gas recirculation system.
The present results show that biodiesel blends generally produce lower PM emissions and higher NOx emissions compared to crude oil-based diesel fuel. Results also show that the injection timing shift is not the reason for the increase in NOx emissions when using biodiesel. Simultaneous reductions in NOx and PM emissions were achieved by using double injections with appropriate injection timings and fuel distributions.
Under low temperature combustion conditions, emissions for the 20% biodiesel blend and crude oil-based diesel are very similar. However, 100% biodiesel still shows an increase in NOx emissions while PM is reduced. Nonetheless, it is believed that NOx emissions will not be of great concern at low temperature combustion conditions for 20% biodiesel blends are used.
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Veltman, M., Karra, P., and Kong, S., "Effects of Biodiesel Blends on Emissions in Low Temperature Diesel Combustion," SAE Technical Paper 2009-01-0485, 2009, https://doi.org/10.4271/2009-01-0485.Also In
References
- Szybist, J.P. Boehman, A.L. “Behavior of a Diesel Injection System with Biodiesel Fuel,” 2003-01-1039 , SAE Technical Paper Series 2003
- Tat, M. E. Van Gerpen, J.H. Soylu, S. Canakci, M. Monyem, A. Wormley, S. “The Speed of Sound and Isentropic Bulk Modulus of Biodiesel at 21 °C from Atmospheric Pressure to 35 MPa” J. American Oil Chem. Soc. 77 3 285 289 2000
- Sharp, C.A. Howell, S. Jobe, J. “The Effect of Biodiesel Fuels on Transient Emissions From Modern Diesel Engines-Part 1: Regulated Emissions and Performance,” 2000-01-1967 , SAE Technical Paper Series 2000
- Graboski, S.M. Ross, J.D. McCormick, R.L. “Transient emissions from No. 2 Diesel and Biodiesel Blends in a DDC Series 60 Engine,” 961166 , SAE Technical Paper Series 1996
- Senatore, A. Cardone, M. Rocco, V. Prati, M.V. “A Comparative Analysis of Combustion Process in D.I. Diesel Engine Fueled with Biodiesel and Diesel Fuel,” 2000-01-0691 , SAE Technical Paper Series 2000
- Hribernick, A. Kegl, B. “Influence of biodiesel fuel on the combustion and emissions formation in a direct injection (DI) Diesel engine,” Energy & Fuels 21 1760 1767 2007
- United States Environmental Protection Agency “A Comprehensive Analysis of Biodiesel Impacts on Exhaust Emissions,” 2002
- Monyem, A. Van Gerpen, J. H. Canakci, M. “The Effect of Timing and Oxidation on Emissions from Biodiesel-Fueled Engines,” Trans ASAE 44 1 35 42 2001
- Cheng, A.S. Upatnieks, A. Mueller, C.J. “Investigation of the Impact of Biodiesel Fueling on NOx Emissions Using an Optical DI Diesel Engine,” Int. Jour. Engine Res. 7 297 318 2006
- Zhang, Y. Boehman, A. L. “Impact of Biodiesel on NOx Emission in a Common Rail Direct Injection Diesel Engine,” J. Energy Fuels 21 4 2003 2012 2007
- Cheng, A. S. Upatnieks, A. Mueller, C. J. “Investigation of Fuel Effects on Dilute, Mixing-Controlled Combustion in an Optical Direct-Injection Diesel Engine,” J. Energy and Fuels 21 1989 2002 2007
- Miles, P.C. Choi, D. Pickett, L.M. Singh, I.P. Henein, N. Rempel Ewert, B.A. Yun, H. Reitz, R.D. “Rate-Limiting Processes in Late-Injection, Low-Temperature Diesel Combustion Regimes,” Proc. THIESEL 2004 Conference 429 447 2004
- Alriksson, M. Denbratt, I. “Low Temperature Combustion in a Heavy Duty Diesel Engine Using High Levels of EGR,” 2006-01-0075 , SAE Technical Paper Series 2006
- Fang, T. Lin, Y.C. Foong, T.M. Lee, C.F. “Spray and Combustion Visualization in an Optical HSDI Diesel Engine Operated in Low-Temperature Combustion Mode with Bio-diesel and Diesel Fuels,” 2008-01-1390 , SAE Technical Paper Series 2008
- Zheng, M. Mulenga, C. Han, X. Tan, Y. Kobler, M. Ko, S.J. Wang, M. Tjong, J. “Low Temperature Combustion of Neat Biodiesel Fuel on a Common-rail Diesel Engine,” 2008-01-1396 , SAE Technical Paper Series 2008
- Karra, P. Kong, S.-C. “Diesel Emission Characteristics Using High Injection Pressure with Converging Nozzles in a Medium-Duty Engine,” 2008-01-1085 , SAE Technical Paper Series 2008
- Hardy, W.L Reitz, R.D. “An Experimental Investigation of Partially Premixed Combustion Strategies Using Multiple Injections in a Heavy-Duty Diesel Engine,” 2006-01-0917 , SAE Technical Paper Series 2006
- Reitz, R.D. Choi, C.Y. Bower, C.R. “Effects of Biodiesel Blended Fuels and Multiple Injections on D.I. Diesel Engines,” 970218 , SAE Technical Paper Series 1997
- Stringer, V. Cheng, W.L. Lee, C.-F Hansen, A. “Combustion and Emissions of Biodiesel and Diesel Fuels in Direct Injection Compression Ignition Engines using Multiple Injection Strategies,” 2008-01-1388 , SAE Technical Paper Series 2008