Search for dissertations about: "Partially Premixed flame"

Showing result 1 - 5 of 21 swedish dissertations containing the words Partially Premixed flame.

2. 1. Large Eddy Simulation of Turbulent Premixed and Partially Premixed Combustion

   Author : Eric Baudoin; Strömningsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : In this thesis, a computational fluid dynamics (CFD) approach is used to study turbulent premixed and partially premixed combustion. The CFD approach is based on large eddy simulation (LES) in which the large-scale structures of the flow are resolved on a grid, leaving only the small-scale structures (subgrid scales) to be modeled. READ MORE

4. 2. Combustion Characteristics of a Swirl Dry Low Emission Burner Concept for Gas Turbine Application : Experiments and Simulations

   Author : Atanu Kundu; Kraftverksteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas Trubine Combustion; Partially Premixed flame; Flame stabilization; Swirl Flow; Emission; Experiments; Combustor; CFD; PLIF; PIV; Chemiluminescence;

   Abstract : In the current global energy scenario, gas turbine can provide delicate balance between the booming worlds energy requirement and a pollutant free sustainable society. Cleaner combustion of fuel (particular natural gas), efficient, reliable, low maintenance and cost effective operation of gas turbine attracted scientific community to push the limit further (high efficiency and zero emission gas turbine). READ MORE

5. 3. On the Modeling of Premixed Combustion under Varying Equivalence Ratios

   Author : Karl-Johan Nogenmyr; Strömningsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Level set G-equation; Combustion modeling; LES; Stratified Premixed Flame;

   Abstract : This thesis deals with numerical simulation of reactive flows. The numerical method is three dimensional and unsteady, which allows for spatial and temporal resolution of most of the scales of the fluid motion and the reaction process. In the turbulent cases studied, scales down to Taylor scales are resolved. READ MORE

6. 4. Application of Laser Techniques in Combustion Environments of Relevance for Gas Turbine Studies

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

   Abstract : 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. READ MORE

7. 5. Numerical Studies of Methanol PPC Engines and Diesel Sprays

   Author : Mateusz Pucilowski; Strömningsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Methanol; Partially Premixed Combustion PPC ; spray-wall interaction; piston geometry; multiple injections; ICE; ignition front; diffusion flame; combustion mode; RANS; LES; PPC; Diesel spray;

   Abstract : The global environment suffers from utilizing fossil fuels to powering internal combustion engines (ICE), due to the massive amounts of released CO2. Besides the global impact, the local environments experience high concentrations of harmful pollutants such as NOx, CO, soot and particulate matter (PM). READ MORE