Sökning: "Turboprop"

Hittade 5 uppsatser innehållade ordet Turboprop.

  1. 1. Analysis of Aircraft Emissions Based on Flight Trajectory : ATR 72-500 trajectory and emission study

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Gustav Forsberg; Carl-Michael Sundberg; [2022]
    Nyckelord :trajectory; emissions; Boeing Fuel Flow;

    Sammanfattning : Emissions related to aviation have during the last decades become an important topic of discussion. Besides carbon dioxide ($CO_2$) which is the major pollutant from air travel, other gas emissions such as hydrocarbons ($HC$), nitrogen oxides ($NO_x$), carbon monoxide ($CO$) and sulfur oxides ($SO_x$) also need to be investigated. LÄS MER

  3. 2. Operating Cost Analysis of Electric Aircraft on Regional Routes

    Kandidat-uppsats, Linköpings universitet/Kommunikations- och transportsystem; Linköpings universitet/Tekniska fakulteten

    Författare :Kawthar Shahwan; [2021]
    Nyckelord :Electric aircraft; cost comparison; cost analysis; operating cost; sustainable air transport; regional routes.;

    Sammanfattning : The future of electric aircraft is closing in, with several companies racing to develop the first electric aircraft for commercial use. Researchers believe that electric aircraft have many benefits compared to conventional aircraft: the decrease of emissions, cheaper costs in the chain of development from manufacturing to ticket prices and a decrease in both fuel costs and overall operating costs. LÄS MER

  4. 3. Olika motortypers påverkan på Sveriges transportflygskapacitet : En komparativ analys av Lockheed Martin C-130J Super Hercules och Embraer KC-390

    Uppsats för yrkesexamina på grundnivå, Försvarshögskolan

    Författare :David Hugo; [2018]
    Nyckelord :Transport aircraft; TP 84; Lockheed Martin; C-130H; C-130J; Super Hercules; Embraer; KC-390; Military utility; Turboprop; Turbofan; Transportflygplan; TP 84; Lockheed Martin; C-130H; C-130J; Super Hercules; Embraer; KC-390; Militär nytta; Turboprop; Turbofläkt;

    Sammanfattning : Sverige har idag några av Europas äldsta militära transportflygplan av typen TP 84 Lockheed Martin C-130H Hercules. Försvarsmakten har beslutat om att modifiera flygplanen så att de kan fortsätta att flyga fram till 2030 men på sikt måste ett nytt system köpas in. LÄS MER

  5. 4. Utvärdering av ett Bränslecellsdrivet Flygplan.

    Kandidat-uppsats, KTH/Farkost och flyg

    Författare :Jonas Thunmarker; [2013]
    Nyckelord :;

    Sammanfattning :   With the increases in fuel costs due to the depletion of the world oil reserves and the increase of greenhouse gasses as a consequence to using oil as a fuel many companies are looking to new and innovative ways to power their aircraft. One of these new ways to power an aircraft is using fuel cells powered using hydrogen and oxygen, thus producing nothing but water vapour and small amounts of nitrogen dioxide as well as trace amounts of other emissions. LÄS MER

  7. 5. Performance variation of a helicopter turboprop with respect to manufacturing tolerances

    Master-uppsats, KTH/Flygdynamik

    Författare :Etienne Massal; [2013]
    Nyckelord :;

    Sammanfattning : This paper focuses on the performance dispersion of the turboprop Turbomeca Arriel2D. The first part describes the engine architecture and the different aerodynamic parameters which affect the performance characteristics. Then an inventory of the most important tolerances with respect to engine performance is taken. LÄS MER