Search for dissertations about: "gas-phase thermometry"

Showing result 1 - 5 of 9 swedish dissertations containing the words gas-phase thermometry.

  2. 1. Quantitative Spectroscopy of Gas Phase Reactions at Elevated Temperatures

    Author : Joachim Walewski; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fluiddynamik; Gaser; plasma; Maskinteknik; vibration and acoustic engineering; vacuum technology; hydraulics; vibrationer; vakuumteknik; statistical inference; Mechanical engineering; polarisation spectroscopy; diamond CVD; quantitative spectroscopy; hydraulik; gas phase kinetics; plasmas; fluid dynamics; Gases; Fysik; akustik; Physics; Fysicumarkivet A:2001:Walewski;

    Abstract : Gas phase reactions at elevated temperatures are versatile tools for material manufacturing and energy conversion. They are of great commercial interest, but they often entail hazardous impacts on the environment. There is consequently a pronounced need for the further develpment of processes utilising these types of reactions. READ MORE

  4. 2. Rotational Coherent Anti-Stokes Raman Spectroscopy: Experimental and Theoretical Developments in Gas-phase Thermometry

    Author : Mikael Afzelius; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; collision line-broadening calculations; combustion laser diagnostics; Laserteknik; Laser technology; CARS; coherent laser spectroscopy; Fysicumarkivet A:2004:Afzelius;

    Abstract : Dual-broadband pure rotational coherent anti-Stokes Raman spectroscopy was investigated in terms of thermometry and species concentration measurement for studies of combustion. The modelling of rotational CARS spectra under conditions of high pressure at room temperature was investigated. READ MORE

  5. 3. Development and Application of Pure Rotational CARS for Reactive Flows

    Author : Alexis Bohlin; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Raman linewidths; gas-phase thermometry; combustion diagnostics; laser spectroscopy techniques; coherent anti-Stokes Raman scattering; molecular spectroscopy; Herman-Wallis factor; Fysicumarkivet A:2012:Bohlin;

    Abstract : The thesis deals with the further development of pure rotational coherent anti-Stokes Raman spectroscopy (RCARS) for improving the capabilities of gas phase thermometry. The main effort has been to make the technique more robust when employed under a wide range of temperatures and operational conditions. READ MORE

  6. 4. Phosphor Thermometry on Surfaces - A Study of its Methodology and its Practical Applications

    Author : Christoph Knappe; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coating Thickness; Temperature Calibration; Two-Colour Ratio; Lifetime Decay; Thermometry; Thermographic Phosphor; Laser Combustion Diagnostics; Laser-Induced Phosphorescence; Non-Linearity; ICCD; PMT; Signal Processing Algorithms; Fysicumarkivet A:2013:Knappe;

    Abstract : Phosphor Thermometry is a term describing an optical measurement technique for remote temperature sensing. Its working principle is based on the temperature-sensitive emission characteristics of certain ceramic substances termed thermographic phosphors. READ MORE

  7. 5. Optical Diagnostics for Quantitative Potassium Chemistry in Biomass Thermochemical Conversion Processes

    Author : Wubin Weng; Förbränningsfysik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical diagnostics; Quantitative measurement; TDLAS; Sulfation; Biomass; UV absorption spectroscopy; TLAF; Potassium chemistry;

    Abstract : Biomass is an essential sustainable and carbon-neutral energy source. Through thermochemical conversion processes, such as combustion and gasification, biomass can generally be used in boilers to provide heat and/or power. Biomass fuels contain varying amounts of potassium, chlorine and sulfur. READ MORE