Essays about: "NOx reduction"

Showing result 1 - 5 of 51 essays containing the words NOx reduction.

  1. 1. Exhaust system for hydrogen fuelled combustion engines: effect of high-water content on the SCR vanadium catalyst

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

    Author : Cecilia Zambelli; [2023]
    Keywords : ;

    Abstract : Transportation represents a key secot in the journey towards a greener future, and alternative solutions are needed to meet the decarbonaisation need. Hydrogen internal combustion engines could represent a solution in the short-term, allowing for emission reduction with limited modification to the already existing traditional combustion engines. READ MORE

  3. 2. 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

  4. 3. Urban Planning for Better Air Quality : A case study of the Low-Traffic Neighbourhoods in London

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Greta Gustafsson; [2022]
    Keywords : Low-Traffic Neighbourhoods; London; Green Infrastructure; Urban Planning; Air Pollution;

    Abstract : Air pollution affects the environment negatively, boosts climate change, and is the cause of millions of deaths per year, first and foremost affecting the people living in urban areas. Since the early 20th century, many cities have been planned around cars, which are the main contributors to the bad air quality. READ MORE

  5. 4. MEASURING ECO-EFFICIENCY OF PRODUCTION IN OECD MEMBER COUNTRIES : A STOCHASTIC FRONTIER ANALYSIS

    University essay from Umeå universitet/Nationalekonomi

    Author : Mahmoud Seif Mohammed; [2022]
    Keywords : ;

    Abstract : This paper analyzed the eco-efficiency of 27 OECD member countries by using output-oriented Stochastic Frontier Analysis (SFA) model. In the set-up of the model, Gross Domestic Product (GDP) was used as a good output whereas Carbon dioxide (CO2), Sulphur dioxide (SO2) and Nitrogen oxide (NOx) emissions were used as bad outputs. READ MORE

  6. 5. Negative CO2 Emissions from Chemical Looping Combustion: Gas Cleaning for CO2 Storage

    University essay from KTH/Kemiteknik

    Author : Laura Raud Pettersson; [2022]
    Keywords : Chemical Looping Combustion; Flue Gas Treatment; Negative emissions; Biomass; CCS; Linde Hampson; Cryogenic Separation; Kemcyklisk Förbränning; Rökgasrening; Negativa Utsläpp; CCS; Biomassa; Linde Hampson; Kryogen Destillation;

    Abstract : Kemcyklisk förbränning (CLC) involverar en icke komplex separation av den bildade koldioxiden (CO2) efter förbränningen eftersom syret (O2) överförs till bränslet via en syrebärare som cirkulerar mellan luft- och bränslereaktorn. Eftersom O2 separeras effektivt från kvävgasen (N2) i luftreaktorn, erhålls en produkt gas som till majoriteten består av CO2 och vatten (H2O). READ MORE