Alexander Weinebeck
IFAS, RWTH Aachen University, Aachen, Germany
Hubertus Murrenhoff
IFAS, RWTH Aachen University, Aachen, Germany
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http://dx.doi.org/10.3384/ecp1392a34Published in: 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden
Linköping Electronic Conference Proceedings 92:34, p. 345-354
Published: 2013-09-09
ISBN: 978-91-7519-572-8
ISSN: 1650-3686 (print), 1650-3740 (online)
The interactions of new biofuels and standard engine components are being investigated at the Institute for Fluid Power Drives and Controls (IFAS) at RWTH Aachen University as part of the research of the cluster of excellence ``Tailor-Made Fuels from Biomass’’. Since modern common rail fuel pumps are fuel lubricated special interest lays on the lubricity of new fuels. At IFAS a High Frequency Reciprocating Test Rig (HFRR) is used to screen possible biofuel candidates with regard to this property. Most of these substances show lubricating abilities similar to those of modern diesel fuels. Nevertheless with 2-Methyltetrahydrofuran a remarkable outlier can be found among the favoured fuel candidates. To unravel the influences of certain molecule structures additional substances were included into the experimental research. By comparing the wear scars of linear alkanes; alkenes and alcohols produced in the HFRR the influence of the molecules chain length and functional group is analysed. This paper gives an introduction to the HFRR test set up and presents the experimental results of the recently screened biofuel candidates
[1] Heitzig; S.; Leonhard; L.; Drumm; S.; Murrenhoff; H.; Lang; J. & Knoll; G. (2013); Simulative Analysis of the Tribological Contacts of Common Rail InjectionPumps Lubricated by Tailor-Made Biofuels; Tribologie und Schmierungstechnik; 6; 17-22.
[2] Fatemimoughari; A. Analysis of Tribological Properties for the Design of Synthetic Biofuels. Shaker; Aachen; 2012.
[3] DIN EN ISO 12156-1
[4] ASTM D6079
[5] Nikanjam; M.; Crosby; T.; Henderson; P.; Gray; C.; Meyer; K.; Davenport; N. ISO diesel fuel lubricity round robin program. SAE Transactions; 104; 1995.
[6] DIN EN 590.
[7] Lacey; P.I.; Howell; S.A.; Fuel lubricity reviewed. Society of Automotive Engineers; 1998
[8] Masuch; K.; Fatemimoughari A.; Murrenhoff; H. and K Leonhard. A COSMORS based QSPR model for lubricity of petro- and biodiesel components. Lubrication Science; online; 2011.
[9] Fatemimoughari; A.; Masuch K.; Murrenhoff; H.; Leonhard; K.; Experimental investigation and theoretical prediction of the lubricity of biofuel components; Fluid Power and Motion Control Symposium; Bath; 2010
[10]Barbour; R.; Rickeard; D.; and Elliott; N.; Understanding Diesel Lubricity. SAE Technical Paper 2000-01-1918; 2000
[11]Wei; D.; Spikes; H.; Korcek; S.; The lubricity of gasoline. Tribology transactions; 42; 1999
[12] Sivebaek; I. M.; Samoilov; V.N.; Persson; B.N.J.; Squeezing molecular thin alkane lubrication films between curved solid surfaces with long-range elasticity: Layering transitions and wear; Journal of chemical physics; 119; 2003
[13]Tartaglino; U.; Sivebaek; I. M.; Persson; B. N.J.; Tosatti; E.; Impact of molecular structure on the lubricant squeeze-out between curved surfaces with long range elasticity; Journal of chemical physics;125; 2006
[14]Czichos; H.; Habig; KH.; Tribologie-Handbuch; Reibung und Verschleiss; Vieweg; Wiesbaden; 1992.
[15] O’Connor; J. J (editor).; Standard handbook of lubrication engineering; McGraw-Hill; New York; 1968
[16]Knothe; G.; Evaluation of ball and disc wear scar data in the HFRR lubricity test. Lubrication Science; 20; 2008
[17]Wohlfarth; C. and Wohlfarth; B.; Viscosity of Pure Organic Liquids and Binary Liquid Mixtures; Subvolume B: Pure Organic Liquids; Springer-Verlag: Berlin; Heidelberg; New York; 2001
[18] Studt; P.; Boundary lubrication: adsorption of oil additives on steel and ceramic surfaces and its influence on friction and wear; Tribology international; 22; 1989
[19] Hsu; S.; Molecular basis of lubrication; Tribology International; 37; 2004
