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Improvement of DI Diesel Engine System by Utilizing GTL Fuels Characteristics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 15, 2009 by SAE International in United States
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Gas To Liquid (GTL) fuels synthesized from natural gas are known as clean fuels. Therefore, GTL fuels have been expected to be a promising option that can reduce the NOx and PM emissions from diesel engines and contribute to the energy security.
In this study, in order to clarify the emission reduction potentials, the improvement of DI diesel engine and aftertreatment systems were investigated by utilizing GTL fuels characteristics.
To achieve a further reduction of both NOx and PM emissions, the combustion chamber, injection pattern and EGR calibration were modified. From the results of tests, the engine out NOx emissions were reduced to the Euro 6 regulation level and in parallel the expected deteriorations of HC emission and fuel consumption were suppressed because of the characteristics of high cetane number and zero poly-aromatics hydrocarbons.
Additionally, an aftertreatment system was optimized to GTL fuel in order to improve NOx conversion efficiency. The diesel particulate and NOx reduction system (DPNR) can reduce NOx and PM simultaneously. However, the DPNR catalyst deteriorates due to sulfur poisoning and by high temperature of desulfation control. As GTL fuels have zero sulfur, the DPNR catalyst could be designed without having to consider desulfation performance. The results of vehicle testing indicate that emissions were significantly reduced and NOx conversion efficiency was maintained even after a mileage accumulation test. These modifications enable to realize ultra low emissions as good as a gasoline-fueled vehicle.
These investigation results clarify that combination of the GTL fuel as a clean fuel and the modifications of engine system have potential to reduce emissions and to improve durability performance of aftertreatment system whilst keeping the features of diesel engines such as low CO2 emission.
CitationNishiumi, R., Nakajima, T., Kitano, K., Sakata, I. et al., "Improvement of DI Diesel Engine System by Utilizing GTL Fuels Characteristics," SAE Technical Paper 2009-01-1933, 2009, https://doi.org/10.4271/2009-01-1933.
- Tsukasaki, Y. “Technical Trend of GTL Fuels for Automobiles” Journal of Society of Automotive Engineers of Japan 5 67 72 2001
- Clark, R. Louis, L. Warnecke, W. Gainsborough, M. Jacometti, J. “The Introduction of Synthetic Fuels” 25 th International Vienna Motor Symposium 2004
- Allman, T. L. Eudy, L. Miyasato, M. Oshinuga, A. Allison, S. Corcoran, T. Chatterjee, S. Jacobs, T. Cherrillo, R. A. Clark, R. Virrels, I. Nine, R. Wayne, S. Lansing, R. “Fuel Property, Emission Test, and Operability Results from a Fleet of Class 6 Vehicles Operating on Gas-To-Liquid Fuel and Catalyzed Diesel Particle Filters” SAE Technical Paper No. 2004-01-2959 2004
- Nishiumi, R. Yasuda, A. Tsukasaki, Y. Tanaka, T. “Effects of Cetane Number and Distillation Characteristics of Paraffinic Diesel Fuel on PM Emission from a DI Diesel Engine” SAE Technical Paper No. 2004-01-2960 2004
- Frame, E. A. Alvarez, R. A. Blanks, M. G. Freerks, R. L. Stavinoha, L. L. Muzzell, P. A. Villahermosa, L. “Alternative Fuels: Assessment of Fischer-Tropsch Fuel for Military Use in 6.5L Diesel Engine” SAE Technical Paper No. 2004-01-2961 2004
- Oguma, M. Goto, S. Oyama, K. Sugiyama, K. Mori, M. “The Possibility of Gas to Liquid (GTL) as a Fuel of Direct Injection Diesel Engine” SAE Technical Paper No. 2002-01-1706 2002
- Johnson, J. W. Berlowitz, P. J. Ryan, D. F. Wittenbrink, R. J. Genetti, W. B. Ansell, L. L. Kwon, Y. Rickeard, D. J. “Emissions from Fischer-Tropsch Diesel Fuels” SAE Technical Paper No. 2001-01-3518 2001
- McMillian, M. H. Cui, M. Gautam, M. Keane, M. Ong, T. Wallace, W. Robey, E. “Mutagenic Potential of Particulate Matter from Diesel Engine Operation of Fischer-Tropsch Fuel as a Function of Engine Operating Conditions and Particle Size” SAE Technical Paper No. 2002-01-1699 2002
- Payri, F. Arregle, J. Fenollosa, C. Belot, G. Delage, A. Schaberg, P. Myburgh, I. Botha, J. “Characterisation of Injection-Combustion Process in a Common Rail D.I. Diesel Engine Running with Sasol Fischer-Tropsch Fuel” SAE Technical Paper No. 2000-01-1803 2000
- Kitano, K Sakata, I. Clark, R. “Effects of GTL Fuel Properties on DI Diesel Engine” SAE Technical Paper No. 2005-01-3763 2005
- Yoshitomi, K. Uchida, N. Hirabayashi, H. Sakata, I. Kitano, K. Yoshida, H. Okabe, N. “A Study of Fischer Tropsch Diesel (FTD) Fuel Effects on Combustion And Emissions Characteristics” 2006
- Schaberg, P. Botha, J. Schnell, M. Hermann, H. Pelz, N. Maly, R. “Emission Performance of GTL Diesel Fuel and Blends with Optimized Engine Calibrations” SAE Technical Paper No. 2005-01-2187 2005
- Kitano, K. Misawa, S. Mori, M. Sakata, I. Clark, R. “GTL Fuel Impact on DI Diesel Emissions” SAE Technical Paper No. 2007-01-2004 2007
- Uchida, N. Hirabayashi, H. Sakata, I. Kitano, K. Yoshida, H. Okabe, N. “Diesel Engine Emissions and Performance Optimization for Neat GTL Fuel” SAE Technical Paper No. 2008-01-1405
- Sakata, I. “Improvement to The Exhaust Emissions of a Small Diesel Engine Using FTD Fuel” JSAE Reviews of Automotive Engineering 29 2 2008
- Nakatani, K. Hirota, S. Takeshima, S. Ito, K. Tanaka, T. “Simultaneous PM and NOx Reduction System for Diesel Engines SAE Technical Paper No. 2002-01-0957
- Yoshida, K. Asanuma, T. Nishioka, H. Hayashi, K. Hirota, S. “Development of NOx Reduction System for Diesel Aftertreatment with Sulfur Trap Catalyst” SAE Technical Paper No. 2007-01-0237
- Ohashi, N. Nakatani, K. Asanuma, T. Fukuma, T. Matsubara, H. Sobue, Y. Watanabe, M. “Development of Next-generation NOx Reduction System for Diesel Exhaust Emission” SAE Technical Paper No. 2008-01-0065
- Asanuma, T. Ohashi, N. Yoshida, K. Inoue, M. Nakatani, K. Fukuma, T. Takagi, N. “Development of Advanced NOx Storage Reduction Catalyst System for Cleaner Diesel Aftertreatment” 7 th COMODIA International Conference 2008