Essays about: "Selective Catalytic Reduction"

Showing result 16 - 20 of 24 essays containing the words Selective Catalytic Reduction.

  1. 16. 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

  3. 17. Modeling and Simulation of Urea Dosing System

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Zaki Ahmed; [2013]
    Keywords : Modeling; Simulation; Urea; Dosing;

    Abstract : To protect our health and environment from pollution, among others regulatory agencies in the European Union (EU) and legislation from the U.S. Environmental Protection Agency (EPA) has required that pollutants produced by diesel engines - such as nitrogen oxides (NOx), hydrocarbons (HC) and particulate matter (PM) - be reduced. READ MORE

  4. 18. Workshop Methods for Troubleshooting the Performance of the After-treatment system

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : André Åkerberg; Daniel Törnroos; [2013]
    Keywords : ;

    Abstract : New legislations are constantly arising in Europe that puts stringent restrictions on the emissions coming from heavy-duty vehicles. The latest one is the Euro VI that has tough limits on both nitrogen oxides (NOx) and particulate matter (PM). READ MORE

  5. 19. Material characterization for studying thermal deactivation of automotive SCR catalysts

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Jonas Granestrand; [2012]
    Keywords : ;

    Abstract : Thermalageing of the commercial selective catalytic reduction catalysts used inScania’s trucks was investigated using catalyst characterization techniques.Catalyst samples were oven-aged at 550 °C for up to 990 hours and investigatedwith nitrogen adsorption, oxygen chemisorption, X-ray fluorescence, X-raydiffraction, X-ray photoelectron spectroscopy and temperature-programmeddesorption of ammonia. READ MORE

  6. 20. Effect of Alternative Fuels on SCR Chemistry

    University essay from KTH/Skolan för kemivetenskap (CHE)

    Author : Simin Faramarzi; [2012]
    Keywords : SCR; urea; Adblue; additives; alternative fuels;

    Abstract : In the time line of world industrial age, the most important era begins in the late 18th century when the use of fossil fuels was growing intensively. This approach has continued and developed up to the 20th century. Besides, this trend has had side effects like polluting environment. READ MORE