Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 132 for “"diesel fuel"”.
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Forecasting diesel fuel prices
… and wheat production which requires considerable diesel fuel to meet producer output objectives. An ability to anticipate fuel price movements may allow producers, farm managers, and fuel distributors to better plan their transactions to reduce costs or to hedge against price change. Despite …
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The Effects of Diesel Fuel on the Growth of Selected Freshwater Phytoplankton
… were to assay the effects of water extracts of diesel fuel and selected components of diesel fuel on selected species of freshwater algae. The effects of bacterial degradation products of the diesel fuel were also tested. Results of the investigation indicate that under specific culture …
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Predictive model and near infrared spectroscopy in predicting the diesel fuel properties
Monitoring the diesel fuel properties play an important role in the performance of vehicle engines. Near-infrared (NIR) technology has been investigated as an alternative to monitor the diesel fuel properties. NIR spectroscopy shows an enormous potential for quantitative analysis of complex samples …
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Temperature dependent physical properties of biodiesel and its blends with diesel fuel
… kinematic viscosity and specific gravity of biodiesel and its blends with Number 1 and Number 2 diesel fuels at 75%, 50%, and 20% percentages of biodiesel. In order to measure the physical properties, ASTM standard test methods were followed. The data collected were modeled using equations …
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Thin fuel film reactor testing for characterization of diesel fuel deposit formation
The need for specialized diesel fuel injectors is growing with increased efficiency and emissions regulation. These specialized fuel injectors have nozzle diameters of 150-200[mu]m which are susceptible to clogging from deposit formation. This thesis studies the deposit formation mechanisms with a …
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The demand for gasoline and diesel fuel in agricultural use in Virginia
… (1) to determine the usage patterns of gasoline, diesel fuel, and other fossil fuels in different types of agriculture; (2) to determine the demand relationships for gasoline and diesel fuel in agricultural use and to identify and assess the major factors that affect these relationships; and (3) …
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Production of Renewable Diesel Fuel via Hofer-Moest Decarboxylation of Free Fatty Acids
… an escalating energy problem. Advanced biofuels, derived from biologically grown feedstocks, are renewable fuels which provide a drop-in replacement for petroleum. One potential conversion pathway to turn lipid-based biomass feedstocks into a renewable diesel fuel is through non-Kolbe …
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Eggshell catalyst assisted palm biodiesel production for blending of B10 blended diesel fuel
Palm biodiesel is currently being internationally debated, more so in Malaysia. The study of this field is increasing day by day in finding ways to reduce its production cost. This study was conducted to analyze the trend of different calcination temperatures to the production of calcium oxide …
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Studies of alkali metal compounds in diesel fuel and small molecule activation chemistry
The study of internal diesel engine deposits is a field that has recently begun to be explored in more depth from a chemistry perspective. The many issues caused within diesel engines related to the formation of insoluble, carboxylate-based deposits demanded insight be gained into the chemical …
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Thermal and chemical analysis of carbonaceous materials: diesel soot and diesel fuel reactor deposits
Methods for the characterisation of fuel-derived carbonaceous materials were assessed. These methods were applied to two such materials, viz. diesel soot and diesel fuel deposits. Diesel soot: Diesel soot, sampled from a commuter bus, was characterised using an array of analytical techniques. …
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A CFD investigation of cavitation and associated deposit formation in modern diesel fuel injectors
… emissions requirements that must be achieved by diesel vehicles are becoming more stringent. Modem fuel injectors on common-rail diesel vehicles use very high rail pressures to aid atomisation and increase combustion efficiency. However, associated with the high injections pressures is the issue …
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Issues on Clean Diesel Combustion Technology Using Supercritical Fluids: Thermophysical Properties and Thermal Stability of Diesel Fuel
<p>The clean diesel combustion technology using supercritical fluids is aimed to both improve fuel economy and reduce harmful emissions. This novel process involves preparation, injection and combustion of supercritical fuel/diluents mixtures. Design and development of this new process require a …
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A Techno-Economic Analysis of Hydrogen, Electric, and Diesel Fuel in Medium- and Heavy-Duty Transportation Applications
… for three distinct vehicle drivetrains (hydrogen fuel-cell vehicles (FCVs), battery-electric vehicles (BEVs), and diesel vehicles (ICE-D)) across a variety of applications in the medium- and heavy-duty (MD/HD) transportation market. The primary basis for evaluating each drivetrain is vehicle total …
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A fundamental study of relationships among fuel properties, combustion characteristics and emission with normal and synthetic diesel fuel
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2003.
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Influence of grain size of a porous medium on the movement of diesel fuel due to water table fluctuations
… and residual water saturation on the movement of diesel fuel. Three different grades of sand (#12, #20, and #30 grades with mean grain diameters of 0.178cm, 0.08cm, and 0.056cm respectively) were used in the experiments. A water table was simulated and the sand above the capillary fringe was …
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HC-SCR of NO\(_x\) emissions over Ag-AL\(_2\)O\(_3\) catalysts using diesel fuel as a reductant
… (Ag-Al\(_2\)O\(_3\)) catalysts, in diesel exhaust gas, has been investigated and presented in this research thesis. The work involved the use of H\(_2\) to activate diesel-type HC reductants. Numerous HC-SCR studies have been conducted (to date) by various authors and research groups …
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An investigation into the effects of diesel fuel properties on the injection characteristics of a common rail injection system
This study set out to investigate the effects of diesel fuel properties on the behaviour of a common rail fuel injection system, with particular emphasis on the injection rate shape characteristics. The investigation included the design and commissioning of experimental equipment for the …
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Assessing the potential for renewable energy systems in remote arctic communities as a means of reducing regional diesel fuel dependence
… Arctic communities are dependent on fossil fuel sources, such as diesel fuel, due to their need for a reliable energy source and supply. However, energy sources like diesel fuel worsen the climate change situation both within the Arctic as well as globally. Climate models for years have …
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