Essays about: "Vehicle exhaust"

Showing result 1 - 5 of 51 essays containing the words Vehicle exhaust.

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

    University essay from KTH/Skolan för industriell teknik och management (ITM)

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

    Abstract : 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. READ MORE

  3. 2. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Adam Jacobsson Trönndal; [2023]
    Keywords : Fuel cells; Phosphoric acid; Polybenzimidazole; PA-PBI; Ionic liquid; IL; High temperature proton exchange membrane fuel cell; HT-PEMFC; Electrochemical impedance spectroscopy; EIS; IL-PBI; Chemical engineering; Technology and Engineering;

    Abstract : In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. READ MORE

  4. 3. Testing of AblativeMaterials as a Protective Coating for Rocket Launch Pads

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Gioele Daka; [2023]
    Keywords : Ablative Materials; Protective Coating; Rocket Launchpad; Refractory Materials; Oxyacetylene Torch; Slug Calorimeter; Ablativa material; Skyddande beläggning; Raketstartplatta; eldfast material; acetylensyrebrännare; kopparkalorimeter;

    Abstract : As the space market grows, demand for sites to host rocket tests and to launch satellites to orbit is expected to increase. During these activities, the launch infrastructure needs to withstand the extreme thermal and mechanical loads associated with the exhaust of a rocket engine. READ MORE

  5. 4. Predictive model for continuous optimization of DPF service interval based on economic trade-off

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Mahir Sheth; [2022]
    Keywords : ;

    Abstract : AbstractEfficiency, emissions and uptime are three crucial factors that development engineers in the automotive business strive to improve. The proposed study is a part of this continuous improvement towards perfection of the Scania engine and exhaust after-treatment system. READ MORE

  6. 5. Effect of ash on catalytic activity for passive regeneration of catalytic diesel particulate filter : Evaluation of ash deposition by laboratory ageing

    University essay from KTH/Kemiteknik

    Author : Gisela Engström; [2022]
    Keywords : Diesel Particulate Filter; Ash deposition; Laboratory Ageing; Catalytic Activity; Passive regeneration;

    Abstract : Askackumulering i dieselpartikelfilter är ett välkänt problem som resulterar i ett förhöjt mottryck och påverkad prestanda hos fordonet. Däremot ges sällan uppmärksamhet åt filtrets katalytiska aktivitet och hur det påverkas vid förekomst av avgasföroreningar. READ MORE