Sökning: "Flygplan"

Visar resultat 16 - 20 av 44 avhandlingar innehållade ordet Flygplan.

  1. 16. Contributions to Variable Fidelity MDO Framework for Collaborative and Integrated Aircraft Design

    Författare :Zhang Mengmeng; Arthur Rizzi; Leifsson Leifur; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aerospace Engineering; Flyg- och rymdteknik;

    Sammanfattning : The thesis develops computational tools for early stages of the aircraft design process. The work focuses on a framework which allows several design teams concurrently to develop a baseline concept into a configuration which meets requirements and whose aerodynamics has been assessed by flight simulation. LÄS MER

  3. 17. Investigation of Emission Characteristics for Diluted Flames and Renewable Fuels in Gas Turbine Combustors

    Författare :Fredrik Hermann; Kraftverksteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; framdrivningssystem; Motorer; termodynamik; Motors and propulsion systems; Termisk teknik; applied thermodynamics; Thermal engineering; combustor rig experiments; combustor reactor models; synthetic fuel; liquid fuel; gaseous fuel; UHC; CO; NOx; emission measurements; CO2 enriched; humidified combustion; diluted combustion; premixed combustion; Gas turbine; combustion chamber; Energiforskning; Energy research;

    Sammanfattning : Gas turbines have served as economically profitable and reliable generators of power for the past few decades, and have mainly been used in simple and combined cycles. The increased restrictions on hazardous emissions and the increased demand for profitability have created new prospects for innovative power cycles. LÄS MER

  4. 18. Exploring Levers for Improvement of Basic Civil Aviation Training

    Författare :Nicklas Dahlström; Trafikflyghögskolan; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Basic civil aviation training; Mental workload; Psychophysiology; Riskhantering; Risk Management and Safety engineering;

    Sammanfattning : Although the civil aviation industry has gone through great technological and commercial change in the last decades, basic civil aviation training has not kept pace accordingly. The changes in civil aviation have rarely resulted in research programs in the field of basic training, which has long received minimal attention from the industry. LÄS MER

  5. 19. Numerical Simulations of Cooling Concepts Related to Gas Turbine Combustors

    Författare :Andreas Abdon; Värmeöverföring; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Motors and propulsion systems; plasma; combustor; gas turbine; cooling; numerical simulations; turbulence; ribs; impingement; Gases; fluid dynamics; plasmas; fluiddynamik; Gaser; Motorer; framdrivningssystem; Thermal engineering; applied thermodynamics; Termisk teknik; termodynamik;

    Sammanfattning : The mean by which a gas turbine combustor is cooled is of major importance for the efficiency and emission performance of the machine. The trends of increasing top cycle temperature and leaner combustion have also been accompanied by a need of efficient use of the cooling air. LÄS MER

  7. 20. Kritiska år : formativa moment för den svenska flygplansindustrin 1944-1951

    Författare :Kristoffer Strandqvist; Handelshögskolan i Stockholm; []
    Nyckelord :;

    Sammanfattning : Efterkrigstidens Sverige och dess säkerhetspolitik har kommit att uppmärksammas allt mer, även de omedelbara efterkrigsåren som präglades av osäkerhet. Något som länge stått i centrum är alliansfriheten och neutralitetspolitiken. Frågan om deras innebörd och hur teori och praktik hängt samman har diskuterats livligt. LÄS MER