Essays about: "Urea Dosing"

Showing result 1 - 5 of 6 essays containing the words Urea Dosing.

  1. 1. Model Predictive Urea Dosing Control Strategy for Heavy-Duty Diesel Vehicles

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Mathias Schmekel; [2023]
    Keywords : Model predictive control; Selective catalytic reduction; Nitrogen oxides; Modell-prediktiv reglering; Selektiv katalytisk reduktion; Kväveoxider;

    Abstract : Stricter requirements on the reduction of Nitrogen Oxides (NOx) in the emissions of heavy-duty diesel vehicles drives development for more efficient aftertreatment systems. An ammonia covered catalyst is one of the most successful technologies in reducing NOx by converting it into the harmless byproducts water and nitrogen. READ MORE

  3. 2. Investigation into Urea Deposit Risk by varying parameters in the control system related to urea evaporation

    University essay from KTH/Kemiteknik

    Author : Anna Sandström; [2022]
    Keywords : Urea Deposits; Urea Decomposition; Selective Catalytic Reduction; Urea Dosing; Ureautfällning; Ureanedbrytning; Selektiv katalytisk reduktion; Ureadosering;

    Abstract : I och med nuvarande och kommande lagkrav för utsläpp från tunga lastbilar finns en efterfrågan på utvecklade strategier för utsläppsminskning. För att kontrollera utsläppen av kväveoxider (NOx) används katalytisk omvandling med AdBlue (vätskeblandning av urea och vatten). READ MORE

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

    University essay from KTH/Maskinkonstruktion (Inst.)

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

    Abstract : 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. READ MORE

  5. 4. Ammonia Dosing Control Strategy for heavy duty automotive SCR

    University essay from KTH/Fordonsdynamik

    Author : Rakshith Ramachandra; [2014]
    Keywords : ;

    Abstract : Selective Catalytic Reduction (SCR) has proven to be the frontrunner for the removal of nitrogen oxides (NOX) from exhaust gas. EURO VI emission regulations present a challenge from the control point of view, so as to achieve high NOX conversion while keeping the ammonia slip under control. READ MORE

  6. 5. Unregulated Emissions from Heavy-Duty Engines and Vehicles

    University essay from KTH/Fordonsdynamik

    Author : Edvin Tang; Toni Zalem; [2014]
    Keywords : ;

    Abstract : Road transport emission levels are at an all-time low and post Euro VI regulations are now up for discussion. A literature study of unregulated diesel emissions in Europe; CO2, N2O, NO2, CH4 and aldehydes has been made to determine the effects and importance of the emissions in today´s heavy-duty vehicles. READ MORE