Sökning: "fuel-air mixing"

Hittade 4 uppsatser innehållade orden fuel-air mixing.

  1. 1. Geometrical Improvement of Fuel Nozzle Locations in the SGT-750 Gas Turbine : An investigation into fuel-air mixing in main channels 1 & 2

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Aryan Delir; [2022]
    Nyckelord :gas turbine engines; turbofan; combustion; SGT-750; flashback; hydrogen; natural gas; premixing; fuel-air mixing; computational fluid dynamics; CFD; turbulence modelling; NOx emission; lean premixed mixture;

    Sammanfattning : This study was conducted on SGT-750, which utilizes can type fourth generation DLE burner, developed at Siemens Energy AB, in Finspång, Sweden. The aim of this study is to obtain a flat fuel profile at the outlet of main channel 1 and main channel 2, demonstrating a proper mixing of fuel and air in the main channels leading to reducing local high-temperature points, and thus, reducing thermal NOx emissions. LÄS MER

  3. 2. Heavy-Duty Spark-Ignited Single Cylinder Engine Fueling System

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Rohan Sharad Kittur; [2018]
    Nyckelord :Fueling system; heavy-duty; spark-ignited; single cylinder engine; aftermarket engine control unit; fuel-air mixture safety; bränslesystem; tunga fordon; tändstiftsantändning; encylinder motor; eftermarknadsmotorstyrenhet; bränsle-luft blandningssäkerhet;

    Sammanfattning : Forskning inom motorutveckling bedrivs för att möta kommande emissionskrav och samtidigt minska bränsleförbrukningen. Kommande förbud mot dieseldrivna fordon planeras i flera städer runt om i världen. Alternativa bränsle som exempelvis naturgas ses som en lovande ersättning även för tunga fordon. LÄS MER

  4. 3. Hydraulic Characterization of Diesel Engine Single-Hole Injectors

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Javier Arco Sola; [2015]
    Nyckelord :;

    Sammanfattning : Due to world trend on the emission regulations and greater demand of fuel economy,the research on advanced diesel injector designs is a key factor for the next generation diesel engines. For that reason, it is well established that understanding the effects of the nozzle geometry on the spray development, fuel-air mixing, combustion and pollutants formation is of crucial importance to achieve these goals. LÄS MER

  5. 4. Optisk undersökning av dieselsprayer från en höghastighetsroterande insprutare

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Tobias Pettersson; [2007]
    Nyckelord :;

    Sammanfattning : There have been changes in Earth’s climate system on both global and regional scale since the pre-industrial era and some of these changes are due to human activities such as the combustion of fossil fuels. This calls for the development of engines with a higher efficiency and less harmful emissions. LÄS MER