Sökning: "injectors"

Visar resultat 1 - 5 av 23 uppsatser innehållade ordet injectors.

  1. 1. Evaluating the Performance of Propulsion System Elements in an Aerospace Company

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :David Fredouelle; [2023]
    Nyckelord :Turbomachinery; injector; test campaign; cryogenic; rocket engine; test bench; cold flow; Turbomaskin; injektor; testkampanj; kryogen; raketmotor; testbänk; kallt flöde;

    Sammanfattning : This paper examines two examples of testing activities of sub-components of a 300kN methalox first-stage rocket engine developed by Pangea Aerospace, namely, theinjectors and the cryogenic pumps. One of the difficulties of these test campaignsis to evaluate the performances of these sub-components without using cryogenicpropellants and in conditions differing from flight conditions. LÄS MER

  3. 2. Fluid flow features in swirl injectors for ethanol fueled rocket : - Analysis using computational fluid dynamics

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

    Författare :Emil Vejlens; Dylan De Jourday; [2022]
    Nyckelord :Fluid Mechanics; Rocket Science; Fuel injectors; Computational Fluid Dynamics; Swirling Flows; Fuel Mixing;

    Sammanfattning : A swirl injector for a rocket engine being developed by \emph{AESIR} (Association of EngineeringStudents in Rocketry) was simulated with different geometric parameters. The swirl injector is usedto atomize the ethanol used as fuel and to create a spray that mixes well with the oxidizer withinthe combustion chamber. LÄS MER

  4. 3. SELECTIVE NON-CATALYTIC REDUCTION SYSTEM

    Master-uppsats, Högskolan i Gävle/Elektronik

    Författare :Sedat Polat; [2020]
    Nyckelord :;

    Sammanfattning : The aim of this thesis is to develop a Selective Non-Catalytic Reduction (SNCR) system which is based on a control system to keep NOx emissions from combustion by maximum 27 kg/h urea consumption and then perform commissioning on the site. The NOx value in the combustion is around 220 mg/Nm3 under 100% laud. LÄS MER

  5. 4. Investigation of Inverse Magnetostriction inCobalt Films and Nanowires

    Master-uppsats, Uppsala universitet/Molekyl- och kondenserade materiens fysik

    Författare :Ahmad Montaser Lababidi; [2020]
    Nyckelord :;

    Sammanfattning : In this thesis, a study of the inverse magnetostriction (the Villari effect) of Co nanowires and films is presented. The main objective was to investigate the stability of the Co nanowires’ magnetic properties, i.e. LÄS MER

  7. 5. Mechanism of Formation of Soft Particles in Biodiesel Fuel Blends

    Master-uppsats, KTH/Materialvetenskap

    Författare :Roberta Maria Fiorenza; [2020]
    Nyckelord :;

    Sammanfattning : The large environmental impact related to the use of fossil fuel has driven the shift toward renewable sourced alternatives. Fossil diesel can be nowadays replaced by biodiesel, obtained from vegetable oils and fats, mostly used as biodiesel blends. LÄS MER