Sökning: "after-treatment systems"

Visar resultat 1 - 5 av 35 uppsatser innehållade orden after-treatment systems.

  1. 1. Characterization of NOx sensor performance under oscillating pressure conditions

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Álvaro López Méndez; [2023]
    Nyckelord :NOx sensors; engine – out heavy duty vehicle conditions; oscillating pressure; test rig testing; NOx-sensorer; motor – ut tunga fordonsförhållanden; oscillerande tryck; testriggtestning;

    Sammanfattning : The NOx sensor is essential in the modern after-treatment system. Due to the introduction of regulations from the US, it is necessary to investigate how these sensors operate in conditions of pulsating pressures generated engine - out, after the turbocharger. LÄS MER

  3. 2. Development of CAD Models for Large Silencer Platforms Using Design Automation

    Master-uppsats, Linköpings universitet/Produktrealisering

    Författare :Mahim Kai; Balagangadar Thilakar Arumugam; [2023]
    Nyckelord :Design Automation; Silencer; CFD; Extraction;

    Sammanfattning : Scania is known as a front-runner in the development of power trains for heavy vehicles, marine, and general industrial applications. As the regulations on emissions for combustion engine vehicles are getting tougher with increasing awareness on sustainable solutions and reducing environmental impact, the goal at Scania is to develop combustion engines to achieve low-pollutant emissions whilst achieving higher efficiency. LÄS MER

  4. 3. Acoustic Characterization of Catalyst

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

    Författare :Surachit Dokson; [2023]
    Nyckelord :;

    Sammanfattning : The WHO has set a sound level threshold of 55 dB, beyond which noise is considered harmful to humans when exposed for an extended period of time. It is, however, estimated by the European Environmental Agency that over 110 million people in the EU are regularly exposed to levels of traffic noise above 55 dB. LÄS MER

  5. 4. FE Simulation of protective insulation of catalysts in exhaust after-treatment systems of trucks and buses : Investigation and characterization of catalytic converter support mat material for accurate modeling in finite element simulations

    Master-uppsats,

    Författare :Manroop Bhattasali; [2022]
    Nyckelord :Catalytic converter; packaging mats; support mats; compression; friction; hyperelastic; hyperfoam; viscoelastic; canning; finite element;

    Sammanfattning : The increase of new and ever more stringent emission legislation has brought about with it a surge in the demand for more sustainable automotive solutions. This has particularly been the case for automobiles, including heavy-duty vehicles like trucks and buses, with internal combustion engines, which now require the design and manufacturing of more durable and reliable components. LÄS MER

  7. 5. Efterbehandlingsansvar för förorenade områden: Ett arbete om hållbar utveckling

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Juridiska institutionen; Lunds universitet/Juridiska fakulteten

    Författare :Erik Nyberg; [2022]
    Nyckelord :Miljörätt; Hållbar utveckling; Förorenade områden; Efterbehandlingsansvar; Law and Political Science;

    Sammanfattning : Miljöbalkens övergripande mål är att uppnå hållbar utveckling enligt balkens portalparagraf. Begreppet består av tre element: ekologisk, ekonomisk samt social hållbarhet. Hållbar utveckling ska genomsyra tillämpningen av hela balken. För att hållbar utveckling ska förverkligas krävs att underliggande delmål beaktas. LÄS MER