Sökning: "EATS"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet EATS.

  1. 1. TOWARDS VALIDATED CATALYTIC REACTOR MODELS

    Författare :Magnus Walander; Chalmers University of Technology; []
    Nyckelord :EATS; scanning electron microscope; Exhaust aftertreatment modelling; gravimetric analysis; effective diffusivity; synthetic catalyst activity test; washcoat; diesel oxidation catalyst;

    Sammanfattning : The use of liquid fuels in the internal combustion engine inherently produces several toxic emissions that need to be removed. This is done through a series of catalytic converters, referred to as the exhaust aftertreatment system (EATS), each catalyst with its own purpose. LÄS MER

  3. 2. Modelling of Catalytic Monolith Reactors for Exhaust Aftertreatment

    Författare :Magnus Walander; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; parameter estimation; effective diffusivity; EATS; synthetic catalyst activity test; scanning electron microscope; washcoat; diesel oxidation catalyst; Exhaust aftertreatment modelling; gravimetric analysis;

    Sammanfattning : The incomplete combustion of liquid or gaseous fuels in the internal combustion engine inherently produces several toxic emissions that need to be  removed. This is done through a series of catalytic converters, referred to as the exhaust aftertreatment system (EATS), each catalyst with its own purpose. LÄS MER

  4. 3. Flow Maldistribution in Exhaust Aftertreatment Systems - Numerical Simulations

    Författare :Pratheeba Chanda Nagarajan; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Catalyst; Flow maldistribution; Transient; CFD Simulations; Reactive flows; Uniformity Index; Exhaust AfterTreatment Systems;

    Sammanfattning : To comply with the stringent emission norms under every driving condition, including the coldstart conditions and Real Driving Emissions (RDE) tests, accurate models that capture the spatial and temporal variation of flow distribution information in Exhaust AfterTreatment Systems (EATS) are required. This study is aimed at characterizing and quantifying flow distribution in EATS under transient conditions with realistic geometry that illustrates the complex nature of the flow conditions. LÄS MER

  5. 4. Supervisory control for emission compliance of heavy-duty vehicles

    Författare :Mohammed Razaul Karim; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; supervisory control; Euro VI emission legislation; exhaust aftertreatment system; Pontryagin’s minimum principle; E-NMPC.; Diesel engines;

    Sammanfattning : Heavy freight trucks globally contribute to a significant proportion of transport-related air pollution. The dominant air pollutants from heavy freight trucks with diesel engine and exhaust aftertreatment system (EATS) are CO2, hydrocarbons (HC), CO, particulate matter (PM), NOX (NO and NO2), and NH3. LÄS MER

  7. 5. Ny teknik och gamla vanor : En studie av mikrovågsugnens introduktion

    Författare :Birgitta Johansson; Linköpings universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : This thesis deals with the effects on the introduction of new technology into a work of a routine habitual nature. The technology concerned is the microwave oven, and the habitual work is food preparation. 49 people - men, women and children - forming seventeen households have taken part in the empirical part of this study. LÄS MER