Sökning: "In-cylinder pressure"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden In-cylinder pressure.

  1. 1. Simulation and validation of in-cylinder combustion for a heavy-duty Otto gas engine using 3D-CFD technique

    Master-uppsats, KTH/Förbränningsmotorteknik

    Författare :Jacob Arimboor Chinnan; [2018]
    Nyckelord :CFD; AVL FIRE; Otto Gas Engine; Combustion Modelling; ECFM Model; Flame Tracking Particle Model; Flame Tracking Model; G-Equation Model; Ignition Models.; CFD; AVL FIRE; Otto Gasmotor; Förbränningsmodellering; ECFM-modell; Flamspårningspartikelmodell; Flamspårningsmodell; G-ekvationsmodell; Tändningsmodeller;

    Sammanfattning : Utsläpp från bilar har spelat stor roll de senaste decennierna. Detta har lett till ökad användning av Otto gasmotorer som använder naturgas som bränsle. Nya motordesigner behöver optimeras för att förbättra motorens effektivitet. LÄS MER

  3. 2. Virtual Crank Angle based Cylinder Pressure Sensor

    Master-uppsats, KTH/Förbränningsmotorteknik

    Författare :Christopher Ringström; [2017]
    Nyckelord :virtual sensor; in-cylinder pressure; heat release; wiebe parametrisation; indicated work; virtuell sensor; cylindertryck; värmeavgivning; wiebe anpassning; indikerat arbete; diesel motor;

    Sammanfattning : Closed-loop combustion control is an on-going field of research for improving reducing engine emissions and increasing efficiency. Cylinder pressure is a key parameter to monitor for combustion feedback. LÄS MER

  4. 3. Virtual Crank Angle based Cylinder Pressure Sensor

    Master-uppsats, KTH/Maskinkonstruktion (Avd.)

    Författare :Christopher Ringström; [2017]
    Nyckelord :Virtual sensor; In-cylinder pressure; Heat release; Wiebe parametrisation; Indicated work; Virtuell sensor; Cylindertryck; Värmeavgivning; Wiebe anpassning; Indikerat arbete; Diesel motor;

    Sammanfattning : Closed-loop combustion control is an on-going field of research for improving reducing engine emissions and increasing efficiency. Cylinder pressure is a key parameter to monitor for combustion feedback. LÄS MER

  5. 4. Estimation of In-cylinder Trapped Gas Mass and Composition

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Sepideh Nikkar; [2017]
    Nyckelord :Diesel Engine; Cylinder Pressure; Residual Gas Mass; Gas Mass Composition; Cylinder Wall Temperature; Cylinder Pressure Correction;

    Sammanfattning : To meet the constantly restricting emission regulations and develop better strategiesfor engine control systems, thorough knowledge of engine behavior is crucial.One of the characteristics to evaluate engine performance and its capabilityfor power generation is in-cylinder pressure. LÄS MER

  7. 5. Crank Angle Based Virtual Cylinder Pressure Sensor in Heavy-Duty Engine Application

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Mikael Gustafsson; [2015]
    Nyckelord :CLCC; in-cylinder pressure; cylinder separation; torsion.;

    Sammanfattning : The in-cylinder pressure is an important signal that gives information about the combustion process. To further improve engine performance, this information can be used as a feedback signal in a control system. Usually a pressure sensor is mounted in the cylinder to extract this information. LÄS MER