This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Characterization of RME, RME Aged and Mineral Diesel Fuel Injected by a Common Rail Apparatus for EURO5 Diesel Engines
Technical Paper
2011-01-1938
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Alternative diesel fuels from renewable sources (biodiesels)
have increased significantly interest due to their potential CO₂
emission benefits, capability to reduce unburned hydrocarbons and
particulate matter emissions, biodegradability and
non-toxicity.
Biodiesels undergo ageing effects due to autoxidation processes
of their molecular chains. Ageing leads to a variety of
decomposition products like peroxides, alcohols, aldehydes and
carboxylic acids. They are detectable as alterations of chemical
properties, odor and taste (rancidity).
The characteristics of Rapeseed Methylester (RME), RME aged and
diesel sprays have been analyzed for different injection strategies
in engines. The tests have been performed on a Bosch second
generation common rail solenoid-driven fuel injection system
capable of 160 MPa maximum injection pressure, fitted on EURO5
diesel engine for passenger car applications. Three different flux
number injectors have been adopted at the injection pressures of
40, 80 and 160 MPa with 1.0, 0.6 and 0.3 ms solenoid energizing
time. The characterization of the injection process for the defined
fuels has been carried out in terms both of fuel injection rate as
well as of spatial and temporal fuel distribution in a quiescent
chamber in non-evaporative conditions.
Largest discharging nozzle area produced highest fuel injection
rate while smallest area created longest injection duration at
parity of solenoid exciting time. Digital processing of the spray
images, captured at different instant from the start of injection,
has enabled the characterization of the fuel dispersion in terms of
tip penetration and cone angle. Differentiate behavior of the
injected fuel has been noted for the diverse nozzles at early time
from the start of injection.
Finally, a detailed reconstruction of the jet images, at very
early time from the start of injection, has highlighted repetitive
anomalies in the jet-to-jet propagations. Their absolute values and
stabilizing time depend on the nozzle type and injection pressure.
At late time, the sprays uniform themselves with a homogeneous
pattern in the vessel.
Recommended Content
Topic
Citation
Allocca, L. and Montanaro, A., "Characterization of RME, RME Aged and Mineral Diesel Fuel Injected by a Common Rail Apparatus for EURO5 Diesel Engines," SAE Technical Paper 2011-01-1938, 2011, https://doi.org/10.4271/2011-01-1938.Also In
References
- AA.VV. “Biofuels for transport - An international perspective” IEA 2007
- Janaun, J. Ellis, N. “Perspectives on biodiesel as a sustainable fuel” Renewable and Sustainable Energy Reviews 14 1312 1320 2010
- Murugesan, A. Umarani, C. Subramanian, R. Nedunchezhian, N. “Bio-diesel as an alternative fuel for diesel engines-a review” Renew Sustainable Energy Rev 13 3 653 662 2009
- AA.VV. “Biofuels Progress Report” Commission of the European Communities Bruxelles 2007
- He, C. Ge, Y. S. Tan, J. Han, X. K. “Spray Properties of Alternative Fuels: a Comparative Analysis of Biodiesel and Diesel” Int. J. Energy Res. 32 1329 1338 2008
- Gao, Y. Deng, J. Li, C. Dang, F. Liao, Z. Wu, Z. Li, L. “Experimental Study of the Spray Characteristics of Biodiesel Based on Inedible Oil” Biotechnology Advances 27 616 624 2009
- Allocca, L. Mancaruso, E. Montanaro, A. Sequino, L. Vaglieco, B.M. “Effect of Mineral and Biodiesel Compositions on Spray Evolution and Mixture Distribution” THIESEL 2010 39 50
- Szybist, J.P. Boehman, A.L. “Behavior of a Diesel Injection System with Biodiesel Fuel” SAE Paper 2003-01-1039
- Miers, S.A. Kastengren, A.L. El-Hannouny, E.M. Longman, D.E “An experimental Investigation of Biodiesel Injection Characteristics Using a Light-Duty Diesel Injector” ASME ICEF 2007-1735
- Mittelbach, M. Gangl, S. Long Storage Stability of Biodiesel Made from Rapeseed and Used Frying Oil Paper no. J9862 in JAOCS 78 573 577 June 2001
- Bosch, W. SAE Technical Paper 660794 1966
- Allocca, L. Montanaro, A. Cipolla, G. Vassallo, A. “Spatial-Temporal Characterization of Alternative Fuel Sprays from a Second-Generation Common-Rail Fuel Injection System for Euro4 Passenger Car Application” SAE Paper 2009-01-1856 2009
- Allocca, L. Mancaruso, E. Montanaro, A. Vaglieco, B. M. Vassallo, A. “Renewable Biodiesel/Reference Diesel Fuel Mixtures Distribution in Non-Evaporating and Evaporating Conditions for Diesel Engines” SAE Paper 2009-24-0054
- Alfuso, S. Allocca, L. Caputo, G. Corcione, F.E. Montanaro, A. Valentino, G. “Experimental Investigation of a Spray from a Multi-jet Common Rail Injection System for Small Engines” SAE Paper SAE_NA 2005-24-90 2005
- Alfuso, S. Allocca, L. Corcione, F.E. Di Stasio, S. “Image Diagnostics of Common Rail Diesel Sprays Evolving in Nitrogen Ambient at Different Densities,” ICE'99 Internal Combustion Engines: Experiments and Modeling Capri 12 16 September 1999
- Di Stasio, S. Alfuso, S. Allocca, L. Corcione, F.E. “Experimental Study on the Atomization Mechanism for Fuel Sprays Evolving in Atmospheres of Different Nature and Density,” ImechE Seminar Publication 1999-17 241 255 1999
- Desantes, J.M. Arregle, J. Ruiz, S. Delage, A. “Characterisation of the injection-combustion process in a D.I. diesel engine running with rape oil methyl ester” SAE Paper No. 1999-01-1497 1999
- Allocca, L. Iannuzzi, S. Montanaro, A. Valentino, G. “Biodiesel/Mineral Diesel Fuel Mixtures: Spray Evolution and Engine Performance and Emissions Characterization” Energy 2010 1 9 10.1016/j.energy.2010.10.052