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Full-Text Articles in Environmental Sciences
Catalytic Effects Of Period Iv Transition Metal In The Oxidation Of Biodiesel, Bradley Clark
Catalytic Effects Of Period Iv Transition Metal In The Oxidation Of Biodiesel, Bradley Clark
Wayne State University Theses
CATALYTIC EFFECTS OF PERIOD IV TRANSITION METALS IN THE OXIDATION OF BIODIESEL
BRADLEY R CLARK
December 2011
Advisors: Dr. Steve Salley, Dr. Simon Ng, Dr. Naiem Henien
Major: Alternative Energy Technology
Degree: Masters of Science
Transition metals have the ability to catalyze free radical autoxidation of unsaturated fatty acid methyl esters (i.e., biodiesel). The catalytic effects of the eight period IV transition metals: V, Cr, Mn, Fe, Co Ni, Cu and Zn in soybean oil and cottonseed oil-based biodiesel are investigated. All metals produced a reduction of the induction period of biodiesel, although there are considerable differences in their catalytic …
Multi-Component Ab2 Metal Hydride Alloys For Nickel Metal Hydride Battery Applications, Jean Nei
Multi-Component Ab2 Metal Hydride Alloys For Nickel Metal Hydride Battery Applications, Jean Nei
Wayne State University Dissertations
Compared to the mish metal-based AB5 MH alloy commonly used in Ni/MH batteries, the transition metal-based AB2 MH alloy not only reduces the rare earth dependency, it also has higher specific energy. In order to further improve the performance of AB2 MH alloy, it's crucial to full understand its multi-phase nature, which includes the main C14/C15 Laves phases and the secondary non-Laves phases.
In order to optimize the gaseous phase and electrochemical advantages of both the C14 and C15 Laves phases, a study was established to recognize the factors that affect the C14/C15 phase abundance. Average electron …
Timing Of Residential Electric Loads To Reduce Air Emissions From Power Generation, Michelle Marinich Rogers
Timing Of Residential Electric Loads To Reduce Air Emissions From Power Generation, Michelle Marinich Rogers
Wayne State University Theses
Over the course of a day, power utilities must respond to changing demand by dispatching or shedding output from different generators. Each generator is associated with a unique profile of air emissions, based on the type of fuel consumed, installed pollution controls, and the generator's efficiency. The aim of this study is to determine whether shifting electric demand to times when cleaner generation sources are available would result in overall emissions reduction.
Dynamic wholesale pricing in the electric power market, specifically the Locational Marginal Price (LMP), provides a means to estimate the marginal generator fuel type. This knowledge was used …
Linear And Non-Linear Deformations Of A Wind Turbine Blade Considering Warping And All Aeroelastic Load Couplings, Fouad Mohammad Mohammad
Linear And Non-Linear Deformations Of A Wind Turbine Blade Considering Warping And All Aeroelastic Load Couplings, Fouad Mohammad Mohammad
Wayne State University Dissertations
The structural dynamics behavior of the blade of a horizontal axis wind turbine that reacts to the different components of the aerodynamic loading were studied by many researchers using different approaches and assumptions. In the present research, the author considered all the extensional, torsional and flexural loadings acting on the blade with their couplings, variable airfoil cross sections with warping effects, shear deflection, rotary inertia and with or without blade's pretwist for both the linear small deformation case and the nonlinear large deformation case. To the best knowledge of the author the simultaneous inclusion of all these factors has not …
Biofuels Production From Hydrotreating Of Vegetable Oil Using Supported Noble Metals, And Transition Metal Carbide And Nitride, Huali Wang
Wayne State University Dissertations
The focus of this research is to prepare non-sulfided hydrotreating catalysts, supported noble metal and transition metal carbide/ nitride, and evaluate their hydrocracking activities and selectivities by using soybean oil as the feedstock. For comparison study, catalytic cracking of soybean oil over a commercialized ZSM-5 was investigated. However, steady state could not be reached because significant amounts of tar and coke were generated during the reaction though a high yield (21%) of jet fuel was obtained from the process. Compared to the catalytic cracking process, less tar and coke were formed during the hydrocracking process and stable continuous flow reaction …