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Interactions of premixed flames with surfaces: Flame stability and pollutant abatementAghalayam, Preeti 01 January 2001 (has links)
Thermal and chemical interactions of premixed flames with inert and catalytic surfaces are studied in this dissertation, for the purpose of elucidating their effects on flame stability and pollutant emissions. Both weak chemical flame-surface coupling (due to radical wall recombination) and strong chemical coupling (due to catalytic wall activity), have been analyzed. A combination of model development and analysis has been used to comprehend various experimentally observed phenomenon, ranging from the effect of surface phenomenon on NO x and fuel emissions. Detailed model analysis has been undertaken in order to determine the effects of thermal and radical wall quenching on bifurcation behavior, wall heat flux, and pollutant emissions, in premixed hydrogen and methane/air flames. A new method to identify the contributions of various NO formation pathways (e.g., the Zeldovich, NNH, and prompt NOx pathways), has been developed. A new methodology for the construction of thermodynamically consistent, detailed surface reaction mechanisms has been developed. The energetics of the reaction mechanisms are derived from the application of the unity bond index-quadratic exponential potential (UBI-QEP) formalism, with species coverage dependent heats of adsorption, obtained from experiments or theory, as an input. Transition state theory estimates are used initially for the pre-exponentials of the reactions, while experimental data is used the sticking probabilities. Large scale simulations are then conducted using this reaction mechanism coupled with appropriate gas-phase chemistry and reactor scale models, to obtain predictions of targeted experiments. Reaction path analysis and sensitivity analysis are employed to identify the important steps for each experiment. A mathematical optimization of the important pre-exponentials against the targeted experiments is then undertaken, by, and refine the pre-exponentials of these reactions. Finally, this optimized mechanism is validated by comparison with other sets of experiments. Detailed reaction mechanisms for H2, CO, and CH 4/air mixtures over platinum are developed.
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The effect of interfacial films on mass transfer of benezene and naphthalene from NAPLs to water /Pasion, Catherine Rodriguez. January 2000 (has links)
No description available.
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Surfactant solubilization of polycyclic aromatic hydrocarbons from nonaqueous phase liquidsHill, Alex J. January 1999 (has links)
No description available.
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Effect of black liquor on the activated sludge process : an experimental investigation of the effect of black liquor on the activated sludge treatment of bleached kraft mill effluentsVadodaria, Sanjay N. January 1999 (has links)
No description available.
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In-situ fluidization for remediation of contaminated sandMerchant, Akber. January 2001 (has links)
No description available.
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Biosorption of uranium and cadmium on sargassum seaweed biomassYang, Jinbai, 1964- January 1999 (has links)
No description available.
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Real-time control strategies for cyclical biological reactorsBrown, Wayne A. January 1998 (has links)
No description available.
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A study of the efficiency and enhancement of electro-kinetic extraction of a heavy metal from contaminated soils /Li, Raymond Siu On. January 1997 (has links)
No description available.
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Combustion of effluent concentrates from pulp millsAl-Wohoush, Mohammad January 2003 (has links)
No description available.
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A study of the metal biosorption process utilizing Sargassum seaweed biomass /Kratochvíl, David. January 1997 (has links)
No description available.
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