Experimental study on antiwear properties for blends of jet fuel with bio-components derived from rapeseed oil

Antiwear properties of jet fuel, two kinds of biocomponents derived from rapeseed oil and their mixtures were investigated experimentally. Antiwear properties were estimated by the value of the scuffing load and the limiting load of scuffing applied to the friction pair working in a fuel medium. Biocomponents, mainly rapeseed oil FAME and rapeseed oil FAME modified via vacuum distillation were used during the study. It is found that lubricity of biocomponents is significantly higher comparing to conventional jet fuel. It is explained by the chemical composition of FAME: highly polarity of molecules stipulate their good adsorption at the surface of friction pair. High viscosity of biocomponents due to chemical structure positively influence on their lubricity. Adding biocomponents into jet fuel results in strengthening boundary film and thus improves antiwear properties of fuel blends. It is determined that FAME modified via vacuum distillation possess better lubricating ability comparing to standard FAME derived from rapeseed oil. Correlation between viscosity and lubricity of fuel is shown

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Experimental Study of the Oxidation, Ignition, and Soot Formation Characteristics of Jet Fuel

10.21236/ada547344 ◽

2010 ◽

Cited By ~ 2

Author(s):

Matthew Oehlschlaeger

Keyword(s):

Experimental Study ◽

Soot Formation ◽

Jet Fuel

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THE TRIBOLOGICAL PROPERTIES OF LUBRICATING GREASES BASED ON RENEWABLE OILS

Tribologia ◽

10.5604/01.3001.0010.7565 ◽

2016 ◽

Vol 266 (2) ◽

pp. 61-72

Author(s):

Rafał KOZDRACH

Keyword(s):

Disperse Phase ◽

Vegetable Oils ◽

Tribological Properties ◽

Castor Oil ◽

Rapeseed Oil ◽

Modified Silica ◽

Limiting Load ◽

Antiwear Properties ◽

Lubricating Properties ◽

Limiting Pressure

The paper discusses the influence of vegetable oil basis on lubricating properties of their selected compositions. Four vegetable oils were used for production of lubricating greases: rapeseed, sunflower, soybean, and castor, all thickened with modified silica of Aerosil® type. The tribological properties of lubricating greases based on vegetable oils were investigated. On their basis, the most beneficial compositions were selected. The tribological properties of greases were estimated via measurements of limiting load of wear (Goz/40), welding load (Pz), scuffing load (Pt), limiting load of scuffing (Poz), and the limiting pressure of seizure (Poz). Based on the obtained results, it may be concluded that the best antiwear properties were shown by the lubricating compositions based on rapeseed oil, whereas the best antiscuffing properties have compositions using castor oil as a disperse phase.

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Performance and emissions of a single cylinder diesel engine operating with rapeseed oil and jp-8 fuel blends

Combustion Engines ◽

10.19206/ce-116861 ◽

2015 ◽

Vol 162 (3) ◽

pp. 13-18

Author(s):

Gvidonas Labeckas ◽

Irena Kanapkienė

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Thermal Efficiency ◽

Rapeseed Oil ◽

Jet Fuel ◽

Brake Specific Fuel Consumption ◽

Test Results ◽

Brake Thermal Efficiency ◽

Engine Load ◽

Fuel Blends

The article presents experimental test results of a DI single-cylinder, air-cooled diesel engine FL 511 operating with the normal (class 2) diesel fuel (DF), rapeseed oil (RO) and its 10%, 20% and 30% (v/v) blends with aviation-turbine fuel JP-8 (NATO code F-34). The purpose of the research was to analyse the effects of using various rapeseed oil and jet fuel RO90, RO80 and RO70 blends on brake specific fuel consumption, brake thermal efficiency, emissions and smoke of the exhaust. The test results of engine operation with various rapeseed oil and jet fuel blends compared with the respective parameters obtained when operating with neat rapeseed oil and those a straight diesel develops at full (100%) engine load and maximum brake torque speed of 2000 rpm. The research results showed that jet fuel added to rapeseed oil allows to decrease the value of kinematic viscosity making such blends suitable for the diesel engines. Using of rapeseed oil and jet fuel blends proved themselves as an effective measure to maintain fuel-efficient performance of a DI diesel engine. The brake specific fuel consumption decreased by about 6.1% (313.4 g/kW·h) and brake thermal efficiency increase by nearly 1.0% (0.296) compared with the respective values a fully (100%) loaded engine fuelled with pure RO at the same test conditions. The maximum NOx emission was up to 13.7% higher, but the CO emissions and smoke opacity of the exhaust 50.0% and 3.4% lower, respectively, for the engine powered with biofuel blend RO70 compared with those values produced by the combustion of neat rapeseed oil at full (100%) engine load and speed of 2000 rpm.

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Physical-Chemical Properties of Jet Fuel Blends with Components Derived from Rape Oil

Chemistry & Chemical Technology ◽

10.23939/chcht10.04.485 ◽

2016 ◽

Vol 10 (4) ◽

pp. 485-492 ◽

Cited By ~ 1

Author(s):

Anna Iakovlieva ◽

◽

Oksana Vovk ◽

Sergii Boichenko ◽

Kazimierz Lejda ◽

...

Keyword(s):

Rapeseed Oil ◽

Fractional Composition ◽

Freezing Point ◽

Chemical Properties ◽

Jet Fuel ◽

Jet Fuels ◽

Fuel Blends ◽

Physical Chemical ◽

Rape Oil ◽

Alternative Jet Fuel

The work is devoted to the development of alternative jet fuel blended with rapeseed oil-derived biocomponents and study of their physical-chemical properties. The modification of conventional jet fuel by rapeseed oil esters was chosen for this work among the variety of technologies for alternative jet fuels development. The main characteristics of conventional jet fuel and three kinds of biocomponents were determined and compared to the standards requirements to jet fuel of Jet A-1 grade. The most important or identifying physical-chemical properties of jet fuels were determined for the scope of this study. Among them are: density, viscosity, fractional composition, freezing point and net heat of combustion. The influence of rapeseed oil-derived biocomponents on the mentioned above characteristics of blended jet fuels was studied and explained.

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