Search for dissertations about: "Laser-induced Photofragmentation Fluorescence"
Showing result 1 - 5 of 6 swedish dissertations containing the words Laser-induced Photofragmentation Fluorescence.
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1. Development and application of photofragmentation laser-induced fluorescence for visualization of hydrogen peroxides
Abstract : The work presented in this thesis is mainly motivated by the need for an optical diagnostic technique which can be used to visualize hydrogen peroxide (H2O2) in its gas phase. Due to the lack of bound electronic states, H2O2 cannot be detected using laser-induced fluorescence based on electronic excitation. READ MORE
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2. Development and Application of Laser-Induced Emission Techniques for Combustion Diagnostics -High-Resolution Visualization of Turbulent Reacting Flows
Abstract : Nowadays, more than 90% of our energy comes from combustion processes. Hence, it is very important to perform combustion research to reduce emissions, improve efficiency, find clean and renewable fuels, strengthen safety, etc. READ MORE
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3. Short-Pulse Photofragmentation and Fluorescence-based Diagnostics - Development and Applications
Abstract : The work presented in the thesis covers the use of laser-induced fluorescence (LIF) and photofragmentation laser-induced fluorescence (PFLIF) with short laser pulses to determine species concentrations in different combustion environments. To attain quantitative species concentrations using LIF investigations of the influence of collisional quenching on the fluorescence signal strength is of vital importance, which can be done by measuring the fluorescence lifetime. READ MORE
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4. Development of fluorescence-based techniques for quantitative measurements of combustion species
Abstract : The work presented in this thesis covers how laser-induced fluorescence (LIF) and photofragmentation laser-induced fluorescence (PF-LIF) can be used to determine quantitative species concentrations in different combustion environments. To attain species concentrations with LIF it is of vital importance to investigate the influence of collisional quenching on the fluorescence signal strength, which can be done by measuring the fluorescence lifetime. READ MORE
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5. Development and Application of Optical Diagnostics of Alkali Vapours for Solid Fuel Combustion
Abstract : Background: High amounts of alkali in the fuel, such as potassium and sodium in combination with high amounts of chlorine increase the chances of high-temperature corrosion, deposit growth and slagging and fouling. These risks need to be reduced to avoid losses in revenue due to unplanned stops and costs related to increased maintenance. READ MORE