Search for dissertations about: "exhaust"

Showing result 1 - 5 of 371 swedish dissertations containing the word exhaust.

  1. 1. Simulations of compressible flows associatedwith internal combustion engines

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Olle Bodin; KTH.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LES; Gas exhange; exhaust port; exhaust manifold; POD; DMD; exhaust; LES; Gasväxling; avgasport; avgasgrenrör; POD; DMD;

    Abstract : Vehicles with internal combustion (IC) engines fueled by hydrocarbon compoundshave been used for more than 100 years for ground transportation.During these years and in particular the last decade, the environmental aspectsof IC engines have become a major political and research topic. READ MORE

  2. 2. Numerical Studies of Flow and AssociatedLosses in the Exhaust Port of a Diesel Engine

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Yue Wang; KTH.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Internal Combustion Engine; Exhaust flow; Exhaust Valve; Exhaust Port; Large Eddy Simulation; Valve and Piston Motion; Total Pressure Losses; Energy Losses; Discharge coefficient; Flow Losses; Flow structures; Air Flow Bench; Engine-like Conditions; SRA - Energy; SRA - Energi;

    Abstract : In the last decades, the focus of internal combustion engine development has moved towards more efficient and less pollutant engines. In a Diesel engine, approximately 30-40% of the energy provided by combustion is lost through the exhaust gases. The exhaust gases are hot and therefore rich of energy. READ MORE

  3. 3. Cardiovascular effects of diesel exhaust mechanistic and interventional studies

    University dissertation from Umeå : Umeå university

    Author : Magnus Lundbäck; Umeå universitet.; [2009]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; air pollution; diesel exhaust; nitrogen dioxide; endothelin-1; cardiovascular effects; exhaust particle trap; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Internal medicine Lung diseases; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Invärtesmedicin Lungsjukdomar; lungmedicin; Lung Medicine;

    Abstract : Background: Air pollution is associated with negative health effects. Exposure to combustion-derived particulate matter (PM) air pollution has been related to increased incidence of cardiovascular and respiratory morbidity and mortality, specifically in susceptible populations. Ambient particles, with a diameter of less than 2. READ MORE

  4. 4. Ozone and diesel exhaust airway signaling, inflammation and pollutant interactions

    University dissertation from Umeå : Umeå universitet

    Author : Jenny Bosson; Umeå universitet.; [2007]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; air pollution; ozone; diesel exhaust; airway inflammation; asthma; immunohistochemistry; MEDICINE Dermatology and venerology; clinical genetics; internal medicine Internal medicine Lung diseases; MEDICIN Dermatologi och venerologi; klinisk genetik; invärtesmedicin Invärtesmedicin Lungsjukdomar; lungmedicin; Lung Medicine;

    Abstract : It is well established that air pollution has detrimental effects on both human health as well as the environment. Exposure to ozone and particulate matter pollution, is associated with an increase in cardiopulmonary mortality and morbidity. Asthmatics, elderly and children have been indicated as especially sensitive groups. READ MORE

  5. 5. Catalytic Converters for Automotive Exhaust Applications. Flow Dynamics, Mass Transfer and Optimization

    University dissertation from Umeå : Umeå universitet

    Author : Fredrik Ekström; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TWC; optimization; exhaust; laboratory reactors; catalytic converter; catalysis; pressure drop; entrance effects; CFD; mass transfer; pulsations; flow distribution;

    Abstract : In order to reduce emissions from vehicles powered by an internal combustion engine, an exhaust aftertreatment system is normally mounted on the engine. This aftertreatment system normally consists of one or several catalytic converters. READ MORE