Search for dissertations about: "lean-burn"

Showing result 1 - 5 of 17 swedish dissertations containing the word lean-burn.

  1. 1. Experimental studies of NOx storage catalysts -Preparation, characterisation, NOx regeneration and sulfur deactivation

    Author : Hussam Abdulhamid; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; sulfur poisoning; CO; DRIFT; precious metal; SO2; NOx storage; H2; NOx reduction; reducing agents; C3H6; H2O; C3H8; lean-burn;

    Abstract : .... READ MORE

  2. 2. Alternative Combustion Strategies for Gasoline Engines

    Author : Daniel Dahl; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; engines; SI; SGDI; CAI; HCCI; Otto; lean burn; gasoline; combustion; fuel consumption;

    Abstract : Due to increasingly strict legislative demands and customer concerns regarding CO2emissions, there is a need to develop and implement new combustion strategies forgasoline (Otto) engines. In attempts to meet this need, most attention is focusing onthe low load/speed range where the classic spark ignition strategy (SI) has poorefficiency, mainly due to the throttling of the intake air causing pumping losses. READ MORE

  3. 3. Experimental Studies of Advanced Ignition Systems for Lean Burn Natural Gas Engines

    University dissertation from Department of Energy Sciences, Lund University

    Author : Jessica Dahlström; Lunds universitet.; Lund University.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ignition system; spark energy; internal combustion engine; engine; spark ignition; natural gas;

    Abstract : One of the greatest challenges for the transport sector today is reducing its environmental impact. This applies especially to the emission aspects, much due to increasingly stringent emissions legislations. READ MORE

  4. 4. Study and Development of Techniques to Improve Engine Stability and Reduce Emissions from Natural Gas Engines

    University dissertation from Combustion Engines, Box 118, 22100 LUND

    Author : Patrik Einewall; Lunds universitet.; Lund University.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; framdrivningssystem; Motorer; Motors and propulsion systems; Low Emissions ; Natural Gas Engines ; EGR ;

    Abstract : Popular Abstract in Swedish Denna avhandling beskriver olika metoder att förbättra motorstabilitet och minska skadliga avgasutsläpp från naturgasmotorer. Gasflöden inuti cylindern mättes med laserdiagnostik, även cylindertryck och avgassammansättning mättes. Sex olika förbränningsrum utvärderades med ovan angivna metoder. READ MORE

  5. 5. Kinetic Studies of NO Oxidation and Reduction over Silver-Alumina Catalyst

    University dissertation from Combustion Engines, Box 118, 22100 LUND

    Author : Muhammad Mufti Azis; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TPD; Silver Alumina; HC-SCR; Kinetic modeling; Hydrogen effect; NOx reduction; NO oxidation.;

    Abstract : In line with growing concerns to manufacture more environmentally friendly vehicles, the use of internal combustion engines operating with oxygen excess or so called lean-burn engines will continue to be increasingly used. For lean-burn operation, reduction of NOx (NO+NO2) emissions is a major challenge and it is therefore urgently required to develop efficient and reliable NOx reduction aftertreatment systems for a wide variety of lean-burn or diesel engines. READ MORE