Sökning: "Flame Emission Spectroscopy"

Hittade 5 uppsatser innehållade orden Flame Emission Spectroscopy.

  1. 1. Optimization and Characterization of Luminescent Materials for the ESS Proton Beam Imaging System

    M1-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Emelie Wiklund; Anton Järild; [2021]
    Nyckelord :Chemical Engineering; Luminescent materials; Cr-doped Alumina; Proton Beam Imaging System; ESS; Chemistry; Technology and Engineering;

    Sammanfattning : Spallation sources such as European Spallation Source (ESS) produces neutrons by bombarding high-energy protons onto the target wheel. To determine the location of the proton beam a Proton Beam Imaging (PBI) system will be installed. LÄS MER

  3. 2. Ray Tracing and Spectral Modelling of Excited Hydroxyl Radiation from Cryogenic Flames in Rocket Combustion Chambers

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Jaka Perovšek; [2018]
    Nyckelord :spectral modelling; excited hydroxyl radiation; OH* radiation; ray tracing; spectroscopy; rocket combustion chambers; rocket engines; hydrogen-oxygen combustion; combustion instabilities;

    Sammanfattning : A visualisation procedure was developed which predicts excited hydroxyl (OH*) radiation from the Computational Fluid Dynamics (CFD) solutions of cryogenic hydrogen-oxygen rocket flames. The model of backward ray tracing through inhomogeneous media with a continuously changing refractive index was implemented. LÄS MER

  4. 3. Measurements and analysis of atomic emission from atomic Li, Na, and K seeded in different flames for potential application to temperature sensing

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Yuhe Zhang; [2017]
    Nyckelord :Flame Emission Spectroscopy; temperature measurement; alkali metal atoms; Physics and Astronomy;

    Sammanfattning : Alkali metal atoms, especially sodium and potassium, show an intense fluorescence in hot flue gases. The bright fluorescence emitted by alkali metal atoms offers a large potential for spectroscopic combustion analysis. LÄS MER

  5. 4. Optical Remote Measurements of Particles in Emission Gas Plumes

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Weihua Wang; [2017]
    Nyckelord :Absorption spectroscopy; Aerosol; DOAS; SOF; Temporal-spatial data analysis; 吸收光谱学; 气溶胶; 差分吸收光谱技术; 掩光通量测量法; 时空域数据分析;

    Sammanfattning : This project aims to use temporal and spatial data analysis to express the measured air pollutant concentrations as well as their relation with the aerosol traces, indicated by the intensity ratio (IR). The surveying were performed during a field campaign of several days of mobile optical remote sensing measurements in Tianjing city, China. LÄS MER

  7. 5. Spectral Analysis of Flame Emission for Optimization of Combustion Devices on Marine Vessels

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Panagiota Stamatoglou; [2014]
    Nyckelord :Premixed flames; Equivalence ratio; Chemiluminescence; Partial least squared regression; Flame monitoring; Physics and Astronomy;

    Sammanfattning : Chemiluminescent emission from OH*, CH* and C2* radicals and its dependence on the equivalence ratio is being investigated in the current study. The aim of this project is to use the results for combustion control on marine vessels and safety checks. LÄS MER