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An Experimental Investigation of Injection and Operating Strategies on Diesel Single Cylinder Engine under JP-8 and Dual-Fuel PCCI Combustion
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2015 by SAE International in United States
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The alternative fuel jet propellant 8 (JP-8, NATO F-34) can be used as an auto-ignition source instead of diesel. Because it has a higher volatility than diesel, it provides a better air-fuel premixing condition than a conventional diesel engine, which can be attributed to a reduction in particulate matter (PM). In homogeneous charged compression ignition (HCCI) or dual-fuel premixed charge compression ignition (PCCI) combustion or reactivity controlled compression ignition (RCCI), nitrogen oxides (NOx) can also be reduced by supplying external exhaust gas recirculation (EGR). In this research, the diesel and JP-8 injection strategies under conventional condition and dual-fuel PCCI combustion with and without external EGR was conducted.
Two tests of dual-fuel (JP-8 and propane) PCCI were conducted at a low engine speed and load (1,500 rpm/IMEP 0.55 MPa). The first test was performed by advancing the main injection timing from BTDC 5 to 35 CA to obtain the emissions characteristics. A fuel ratio of JP-8 to propane of approximately 30:70 was established based on the low heating value of each fuel without the addition of external EGR. The second test investigated the optimal point for low emissions and indicated mean effective pressure (IMEP) with a small amount of external EGR and a post-injection strategy.
NOx emissions showed a ‘bump’ curve with an advancement of the main injection timing. The PM emissions were maintained below 0.63 mg/m3, which reveals almost zero PM emissions. The optimized test results showed appropriate NOx and PM emissions.
CitationChu, S., Lee, J., Cha, J., Choi, H. et al., "An Experimental Investigation of Injection and Operating Strategies on Diesel Single Cylinder Engine under JP-8 and Dual-Fuel PCCI Combustion," SAE Technical Paper 2015-01-0844, 2015, https://doi.org/10.4271/2015-01-0844.
- DieselNet, “Diesel Exhaust Emissions Standards”, http://dieselnet.com/standards/eu/ld.php, accessed July, 2014
- Qiang F., Junjua F., Jian Z., and Zhen H., “Effects of ethanol-diesel-biodiesel blends on combustion and emissions in premixed low temperature combustion”, Applied Thermal Engineering, 54 2013, p.541-548, DOI:10.1016/j.applthermaleng.2013.01.042.
- Kokjohn, S., Hanson, R., Splitter, D., and Reitz, R., “Experiments and Modeling of Dual-Fuel HCCI and PCCI Combustion Using In-Cylinder Fuel Blending,” SAE Int. J. Engines 2(2):24-39, 2010, doi:10.4271/2009-01-2647.
- Heywood, J. B., Internal Combustion Engine Fundamentals, 1988, McGraw-Hill Book Company.
- Choi, D., Jung, H., Chi, Y., and Joo, S., “Diesel/Gasoline Dual Fuel Powered Combustion System based on Diesel Compression Ignition Triggered Ignition Control,” SAE Technical Paper 2013-01-1718, 2013, doi:10.4271/2013-01-1718.
- Curran, S., Prikhodko, V., Cho, K., Sluder, C. et al., “In-Cylinder Fuel Blending of Gasoline/Diesel for Improved Efficiency and Lowest Possible Emissions on a Multi-Cylinder Light-Duty Diesel Engine,” SAE Technical Paper 2010-01-2206, 2010, doi:10.4271/2010-01-2206.
- Liu Haoye, Wang Zhi, Wang Jianxin, He Xin, “Effects of gasoline research octane number on premixed low-temperature combustion of wide distillation fuel by gasoline/diesel blend”, Fuel, 134 p.381-388, 2014.
- Park S, Youn I., Lim Y, and Lee C., “Influence of the mixture of gasoline and diesel fuels on droplet atomization, combustion, and exhaust emission characteristics in a compression ignition engine”, Fuel Processing Technology, Volume 106, February 2013, Pages 392-401, doi:10.1016/j.fuproc.2012.09.004.
- Lee, J., Choi, S., Kim, H., and Kim, D. et al., “Reduction of emissions with propane addition to a diesel engine”, Int. J. Automotive Technology, Vol. 14, 2013, pp. 551-8, doi:10.1007/s12239-013-0059-2.
- Deshmukh, B., Gokhale, N., Kumar, M., Aghav, Y. et al., “Combustion Behavior of Off-Highway CI Engines Using Biodiesel,” SAE Technical Paper 2009-26-0035, 2009, doi:10.4271/2009-26-0035.
- Owens, E., LePera, M., and Lestz, S., “Use of Aviation Turbine Fuel JP-8 as the Single Fuel on the Battlefield,” SAE Technical Paper 892071, 1989, doi:10.4271/892071.
- Lestz, S. and LePera, M., “Technology Demonstration of U.S. Army Ground Materiel Operating on Aviation Kerosene Fuel,” SAE Technical Paper 920193, 1992, doi:10.4271/920193.
- Lacey, P. and Lestz, S., “Effect of Low-Lubricity Fuels on Diesel Injection Pumps - Part I: Field Performance,” SAE Technical Paper 920823, 1992, doi:10.4271/920823.
- Schihl, P., Hoogterp, L., and Pangilinan, H., “Assessment of JP-8 and DF-2 Evaporation Rate and Cetane Number Differences on a Military Diesel Engine,” SAE Technical Paper 2006-01-1549, 2006, doi:10.4271/2006-01-1549.
- Lee. J., and Bae. C., “Application of JP-8 in a heavy duty diesel engine”, Fuel Volume 90, Issue 5, May 2011, Pages1762-1770, doi: 10.1016/j.fuel.2011.01.032.
- Pickett, L. and Hoogterp, L., “Fundamental Spray and Combustion Measurements of JP-8 at Diesel Conditions,” SAE Int. J. Commer. Veh. 1(1):108-118, 2009, doi:10.4271/2008-01-1083.
- Papagiannakis, R., Kotsiopoulos, P., Hountalas, D., and Yfantis, E., “Single Fuel Research Program Comparative Results of the Use of JP-8 Aviation Fuel versus Diesel Fuel on a Direct Injection and Indirect Injection Diesel Engine,” SAE Technical Paper 2006-01-1673, 2006, doi:10.4271/2006-01-1673.
- Lee. J., “A Study on the Characteristics of JP-8 Combustion and Emission on a CI Engine”, dissertation from Department of Mechanical and Aerospace Engineering, Seoul National University, 2014.
- Lakhlani, H., Barman, J., Rajput, K., and Goswami, A., “Experimental Study of EGR Mixture Design and its Influence on EGR Distribution Across the Cylinder for NOx - PM Tradeoff,” SAE Technical Paper 2013-01-2743, 2013, doi:10.4271/2013-01-2743
- Reltz, R. and Kuo, T., “Modeling of HC Emissions Due to Crevice Flows in Premixed-Charge Engines,” SAE Technical Paper 892085, 1989, doi:10.4271/892085.
- Karim, G., Liu, Z., and Jones, W., “Exhaust Emissions from Dual Fuel Engines at Light Load,” SAE Technical Paper 932822, 1993, doi:10.4271/932822.
- Prikhodko, V., Curran, S., Barone, T., Lewis, S. et al., “Emission Characteristics of a Diesel Engine Operating with In-Cylinder Gasoline and Diesel Fuel Blending,” SAE Int. J. Fuels Lubr. 3(2):946-955, 2010, doi:10.4271/2010-01-2266.