Ball-On-Cylinder (BOC) Aircraft Turbine Fuel Lubricity Tester

Diesel Fuel Lubricity Agents

Encyclopedia of Lubricants and Lubrication ◽

10.1007/978-3-642-22647-2_256 ◽

2014 ◽

pp. 374-383

Author(s):

David J. Moreton

Keyword(s):

Diesel Fuel ◽

Fuel Lubricity

Download Full-text

Laboratory unit for evaluating jet fuel lubricity

Chemistry and Technology of Fuels and Oils ◽

10.1007/bf00717290 ◽

1975 ◽

Vol 11 (8) ◽

pp. 629-632

Author(s):

E. I. Gulin ◽

A. R. Belous

Keyword(s):

Jet Fuel ◽

Laboratory Unit ◽

Fuel Lubricity

Download Full-text

Lubricity of paraffinic fuels additivated with conventional and non-conventional methyl esters

Advances in Mechanical Engineering ◽

10.1177/1687814019877077 ◽

2019 ◽

Vol 11 (9) ◽

pp. 168781401987707

Author(s):

José Rodríguez-Fernández ◽

Angel Ramos ◽

Jesus Sánchez-Valdepeñas ◽

Jose Ramon Serrano

Keyword(s):

Methyl Esters ◽

Injection System ◽

Fuel Quality ◽

Combustion Engines ◽

Wear Scar Diameter ◽

Diesel Fuels ◽

Compression Ignition Engines ◽

Biodiesel Fuels ◽

Metallic Parts ◽

Fuel Lubricity

Fuel lubricity prevents wear between metallic parts in relative motion inside the injection system of combustion engines. Among diesel fuels, paraffinic (gas-to-liquid or hydrotreated oils) and biodiesel (methyl esters) fuels are emerging since some of them are renewable and, in the case of paraffinic fuels, present excellent properties that can be exploited in compression ignition engines. However, the lubricant properties of raw paraffinic fuels are poor. This work explores the potential of individual methyl esters, found in different biodiesel fuels derived from a wide variety of sources, as lubricity additives for paraffinic fuels. Blends at 1% and 2% ester content in a surrogate of paraffinic fuel were tested under the standardized high-frequency reciprocating rig test for lubricity determination. Results confirm the extremely poor lubricity of the surrogate and that the wear scar diameter measured (the higher this, the lower the fuel lubricity) can be significantly reduced with any of the tested esters just at 1% concentration. Higher ester concentration (2%) does not always improve the lubricity further. The number of double bonds in the ester was revealed very significant, but to boost the lubricity of the blend and fulfill the limits set in fuel quality standards, two or more polyunsaturated esters are necessary.

Download Full-text