Sökning: "Gas Turbine"

Visar resultat 21 - 25 av 282 avhandlingar innehållade orden Gas Turbine.

1. 21. Laser-Based Investigations of Combustion Phenomena in Gas Turbine Related Burners

   Författare :Arman Subash; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Combustion; Gas turbine; Chemiluminescence; laser-based techniques; LIF; PIV; DLE; TARS; CH4; H2; OH; CH20; Equivalence ratio; flame stabilization; LBO; Flashback; RPL; Fysicumarkivet A:2018:Subash;

   Sammanfattning : Experiments were performed on various combustion devices to investigate the flames employing different optical measurement techniques under atmospheric pressure conditions. Non-intrusive laser-based techniques provided in-situ information concerning different parameters of the combustion process, with a high degree of temporal and spatial resolution. LÄS MER

3. 22. Externally fired gas turbine cycle based on biomass gasification gas as fuel

   Författare :Fabiola Baina Veizaga; Torsten Fransson; Lasse Rosendhal; KTH; []
   Nyckelord :Externally fired micro gas turbine; heat transfer; combustion of biomass derived gas; micro combined heat and power; Energiteknik; Energy Technology;

   Sammanfattning : Energy services are essential for the development of societies, reduce poverty, and improve the living standards of inhabitants. The conventional routes to provide energy services employ fossil fuels. However, this involves environmental and availability concerns. LÄS MER

4. 23. Investigation of a prototype industrial gas turbine combustor using alternative gaseous fuels

   Författare :Ivan Sigfrid; Kraftverksteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Combustion; Gas Turbine; Laminar flame speed; Stretch; Lean blowout; Emissions;

   Sammanfattning : In this thesis, the effect of alternative gaseous fuels, with high hydrogen content and lower calorific value, on gas turbine combustion was investigated experimentally. The aim of the investigation was to find operational limitations for an experimental burner and to supply data for validation of computational fluid dynamics (CFD). LÄS MER

5. 24. Modeling and Performance of Gas Turbine Cycles with Various Means of Blade Cooling

   Författare :Kristin Jordal; Kraftverksteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluid dynamics; Gases; termodynamik; Termisk teknik; applied thermodynamics; Thermal engineering; blade cost; HAT cycle; humid air; model validation; blade cooling modeling; thermodynamic simulations; blade cooling; Gas turbine; plasmas; Gaser; fluiddynamik; plasma; Mechanical engineering; hydraulics; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik;

   Sammanfattning : A method for simulating the cooled gas turbine is demonstrated. Based on equations and other knowledge found in the literature, a first-law thermodynamic, non-dimensional model is established and implemented in the equation-solving, programmable software IPSEpro. LÄS MER

7. 25. Application of Laser Techniques in Combustion Environments of Relevance for Gas Turbine Studies

   Författare :Andreas Lantz; Förbränningsfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Laser Diagnostics; PLIF; Laser-Induced Fluorescence; Combustion; Fuel visualization; LIF; Gas turbine; Flashback; Flame position; Swirling flame; Fysicumarkivet A:2012:Lantz;

   Sammanfattning : In the work presented in this thesis, different laser-based techniques were employed for measurements in different combustion devices. Laser-based techniques enable non-intrusive and in-situ measurements to be carried out, in which high spatial and temporal resolution can be obtained. LÄS MER