Sökning: "trace gas method"

Visar resultat 6 - 10 av 13 uppsatser innehållade orden trace gas method.

  1. 6. 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. 7. 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

  4. 8. Towards Nickel Boride Catalyzed C-C Coupling Reactions

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Ágnes Lakó; [2017]
    Nyckelord :heterogeneous catalysis; nickel catalysis; coupling reactions; cross-coupling; homocoupling;

    Sammanfattning : This thesis focuses on the study of nickel boride as a catalyst in various coupling reactions. The nickel boride catalyst was investigated in three different coupling reactions, the experiments aimed at understanding the activity and catalytic properties of nickel boride. LÄS MER

  5. 9. Effect of Petrophysical Parameters on Seismic Waveform Signatures : Review of Theory with Case Study from Frigg Delta Oil Field, Norway

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :Gardar Gislason; [2016]
    Nyckelord :AVO; poroelasticity; AVFO; WIFF; seismic attenuation; seismic dispersion; AVO; poroelasticitet; AVFO; WIFF; seismisk dampning; seismisk dispersion;

    Sammanfattning : Conventional AVO analysis has been used for the past 4 decades to aid in locating oil and gas reservoirs for extraction. It is, however, not possible to use it to acquire information on the porosity of the rock, the fluid saturation or other important petrophysical parameters. LÄS MER

  7. 10. OIL SHALE ASH UTILIZATION IN INDUSTRIAL PROCESSES AS AN ALTERNATIVE RAW MATERIAL

    Master-uppsats, KTH/Industriell ekologi

    Författare :Hussain Azeez Mohamed; Leonel Campos; [2016]
    Nyckelord :;

    Sammanfattning : Oil shale is a fine-grained sedimentary rock with the potential to yield significant amounts of oil and combustible gas when retorted. Oil shale deposits have been found on almost every continent, but only Estonia, who has the 8th largest oil shale deposit in the world has continuously utilized oil shale in large scale operations. LÄS MER