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Showing 1 to 14 of 14 for “"Oil Properties"”.
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Experimental study of engine oil film thickness dependence on liner location, oil properties and operating conditions
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Development and application of a lubricant composition model to study effects of oil transport, vaporization, fuel dilution, and soot contamination on lubricant rheology and engine friction
Engine oil lubricants play a critical role in controlling mechanical friction in internal combustion engines by reducing metal-on-metal contact. This implies the importance of understanding lubricant optimization at the piston ring-cylinder liner interface. Lubricating oil composition varies along …
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Selection of Prediction Methods for Thermophysical Properties for Process Modeling and Product Design of Biodiesel Manufacturing
… to know the four fundamental thermophysical properties of the feed oil: liquid density (Ï L), vapor pressure (Pvap), liquid heat capacity (CpL), and heat of vaporization (Î Hvap). Additionally, to characterize the fuel qualities, it is critical to develop quantitative correlations to predict …
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Accelerated Methods For Determining The Oil Deterioration In An Internal Combustion Engine
… and compare methods for extracting lubricating oil for subsequent chemical analysis from an operating internal combustion engine. Following on from the development of the tube base sampling system in the early 198O’s, the project initially concerned itself with the possible improvement of this …
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Study of lubrication oil ignition in a rapid compression machine under sporadic pre-ignition conditions
… This study looks at the propensity of lube oil vapor appearing in the cylinder as a cause for this phenomenon. The theory is that a local oil vapor/air mixture pocket may auto-ignite and start a flame in the charge. The pre-ignition would produce extreme knock. A rapid compression machine …
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Catalytic pyrolysis of agricultural residues for bio-oil production
… plants, were employed as raw materials for bio-oil production via fast pyrolysis technology. There were two main objectives of this project. The first one was to determine the optimum pyrolysis temperature for maximising the organics yield and to investigate the properties of the bio-oils …
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Hydrothermal liquefaction for energy recovery from high-moisture waste biomass
… waste biomass into energy dense “biocrude” oil that can be used for direct combustion or refined for transportation grade fuels. This study investigates the influence of biomass composition on the chemical characteristics of hydrothermal liquefaction biocrude oil, and the potential of algal …
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Energy efficiency in dual fluidised bed fast pyrolysis
… design allows in situ catalytic upgrading of bio-oil, by providing the conditions required for the regeneration and decoking of catalysts. The first version of the CRIPS process (CRIPS 1) emphasised the need for an energy balance approach to model the pyrolysis process rather than a mass balance. …
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Flow and separation of the oil from compressor discharge to external separator
Oil is essential for most of the refrigerant compressors, but oil circulating in the refrigeration or air conditioning systems has a side effect on the heat transfer and total efficiency. Oil separator is an important component to reduce the amount of oil circulating in the system and to keep the …
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Catalytic Pyrolysis of Cellulose, Hemicellulose and Lignin Model Compounds
… pretreatment on the product distribution and bio oil properties from pyrolysis of cellulose, hemicellulose and lignin model compounds was investigated at 450 °C. NaOH pretreated and untreated cellulose was pyrolyzed on sand and the HZSM-5 catalysts; VPISU001 HZSM-5, BASF HZSM-5, and Sud-Chemie …
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Study of transient oil migration at compressor and improved oil return
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Separation and characterization of crude oils and investigation of their wetting properties on rock surfaces
The complexity of crude oil makes its compositional characterization a very challenging task. As a conventional method for characterizing crude oil, SARA fractionation is based on the differences between the solubility and polarity of the four fractions: Saturates, Aromatics, Resins, and …
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Influence of a Biodegradable Litter Amendment on the Pyrolysis of Poultry Litter
… products. Addition of Ammosoak increased the bio-oil and syngas yields and decreased char yields. Adding AmmoSoak to the feed decreased the pH, water contents, initial viscosity, and the rate at which the viscosity increased with time, while densities and HHVs increased. The addition of Ammosoak …
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Influence of wood on the pyrolysis of poultry litter
Pyrolytic oils produced from poultry litter differ in physico-chemical properties and the chemical composition. The litter is composed of manure and bedding material with traces of spilled feed and feathers. The type and amount of bedding material was varied to investigate its influence on the …