Sökning: "Combustion diagnostics"

Visar resultat 11 - 15 av 105 avhandlingar innehållade orden Combustion diagnostics.

1. 11. OH and Soot Optical Diagnostics for Combustion Applications for Combustion Applications

   Författare :Zheming Li; Förbränningsfysik; []
   Nyckelord :laser-induced fluorescence spectroscopy; Soot emission; combustion diagnostics; Fysicumarkivet A:2016:Li;

   Sammanfattning : Optical diagnostics are remote non-intrusive sensing techniques. The thesis work concerns the use of OH and soot optical diagnostics for combustion research.Internal combustion (IC) engines are widely used for the generation of power and for transportation purposes. LÄS MER

3. 12. Optical Diagnostics of Non-thermal Plasmas and Plasma-assisted Combustion

   Författare :Jiajian Zhu; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; High-speed photography; Laser diagnostics; Planar laser-induced fluorescence; Plasma-assisted combustion; Non-thermal plasmas; Gliding arc discharge; Optical diagnostics; Particle tracking velocimetry; Fysicumarkivet A:2015:Zhu;

   Sammanfattning : Non-thermal plasma is regarded as a collection of free electrons, ions and neutral particles that are not at local thermodynamic equilibrium. The high-energetic electrons formed in non-thermal plasmas are capable of generating chemically active species and modifying chemical kinetics in practical applications. LÄS MER

4. 13. Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines

   Författare :Öivind Andersson; Förbränningsmotorer; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Motors and propulsion systems; LIF; Laser Diagnostics; Rayleigh Scattering; Fluorescence; Combustion; Pollutant; Nitric Oxide; Spray Combustion; DME; Laserteknik; Laser technology; Motorer; framdrivningssystem; Physics; Fysik; Fysicumarkivet A:2000:Andersson;

   Sammanfattning : Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO. LÄS MER

5. 14. High Repetition Rate Laser Diagnostics for Combustion Applications

   Författare :Johan Sjöholm; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; spray; diesel; optical engine; simultaneous; laser-induced fluorescence; fuel tracer; SLIPI; Raman; LII; laser diagnostic; combustion; high repetition rate; high-speed; PLIF; multi-YAG; LIF; fuel jet; Fysicumarkivet A:2012:Sjöholm;

   Sammanfattning : High repetition rate laser diagnostics has proven to be a useful tool for studying combustion phenomena. Laser techniques are, in general, relatively non-intrusive and have the potential to measure specific species at very low concentrations and with extremely high temporal resolution. LÄS MER

7. 15. Advanced Laser-based Multi-scalar Imaging for Flame Structure Visualization towards a Deepened Understanding of Premixed Turbulent Combustion

   Författare :Bo Zhou; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Laser Diagnostics; PLIF; High Spatial Resolution; Multi-scalar Instantaneous Visualization; HCO CH Radicals; Distributed Reaction Zone; Mild Combustion.; Combustion Regimes; Turbulence Flame Interaction; Turbulent Premixed Combustion; Fysicumarkivet A:2015:Zhou;

   Sammanfattning : The work presented in the thesis concerns the developments of laser-based diagnostics and its application to the study of turbulent premixed combustion. The diagnostic developments, mainly concerned with planar laser-induced fluorescence (PLIF), are intended to provide instantaneous visualization of the key species originating from the combustion processes involved in the burning of hydrocarbons and nitrogen-containing fuels under turbulent conditions. LÄS MER