Sökning: "AdBlue"

Visar resultat 6 - 10 av 13 uppsatser innehållade ordet AdBlue.

  1. 6. CFD-simulations of urea-waterspray in an after-treatment systemusing Star-CCM+

    Master-uppsats, KTH/Mekanik

    Författare :Emelie Trigell; [2018]
    Nyckelord :after-treatment systems; selective catalytic reaction SCR ; AdBlue; multiphase flow; multi-component liquid; Unsteady Reynolds Average Navier Stokes RANS ; wall film formation; solid deposits; efterbehandlingssystem; selektiva katalytiska reaktioner; AdBlue; flerfasstr ¨ommning; flerkomponentvätska; Unsteady Reynolds Average Navier Stokes; väggfilm; avlagringar;

    Sammanfattning : The legislation has forced the vehicle industry to reduce tail-end emissions. The air pollutant nitrogen oxide (NOX) has been shown to have a negative impact on human health and the environment. One of the key technologies to reduce the levels of NOX emitted from a vehicle is by implementing an after-treatment system. LÄS MER

  3. 7. Optimization of the AdBlue e vaporation module for Scania V8 engines

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Mattia Antoniotti; [2017]
    Nyckelord :CR; evaporation unit; urea deposits; heat fins; Urea; förångningsmodulen; ureaavlagringar; rörflänsar;

    Sammanfattning : The aftertreatment techniques introduced to follow the emission legislations require a constant improvement process to comply with the gradually more stringent demands. SCR is the system used nowadays to deal with NOx emissions in most heavy-duty vehicles. LÄS MER

  4. 8. Modeling of the Melting Process in an AdBlue Tank

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Emil Klinga; [2015]
    Nyckelord :AdBlue; Melting; moving boundary; modeling;

    Sammanfattning : This master thesis is covering the modeling of the melting process in a tank filled with AdBlue. Due to AdBlue freezing at temperatures below -11 degree there is a need to add heat to be able to secure dosing in all situations. LÄS MER

  5. 9. Investigating Urea Vaporization in a Controlled Environment Using Infrared Thermography

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

    Författare :Henrik Grimler; [2015]
    Nyckelord :AdBlue; Infrared; Film; Evaporation; Deposits;

    Sammanfattning : As the emission legislation becomes more stringent, higher demands are put on the aftertreatment system in trucks. For dealing with nitrous oxides, AdBlue® (urea–water solution) is injected into the exhausts which evaporates and reduces nitrous oxides to nitrogen. LÄS MER

  7. 10. Modeling and Simulation of Urea Dosing System

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Zaki Ahmed; [2013]
    Nyckelord :Modeling; Simulation; Urea; Dosing;

    Sammanfattning : To protect our health and environment from pollution, among others regulatory agencies in the European Union (EU) and legislation from the U.S. Environmental Protection Agency (EPA) has required that pollutants produced by diesel engines - such as nitrogen oxides (NOx), hydrocarbons (HC) and particulate matter (PM) - be reduced. LÄS MER