Search for dissertations about: "car exhaust"

Showing result 1 - 5 of 26 swedish dissertations containing the words car exhaust.

  1. 1. Studies of MISiC-FET sensors for car exhaust gas monitoring

    University dissertation from Institutionen för fysik, kemi och biologi

    Author : Helena Wingbrant; Linköpings universitet.; Linköpings universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; field effect sensor; gas detection; selective catalytic reduction; lambda; cold start; ammonia; silicon carbide; engine exhaust; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : The increasing size of the car fleet makes it important to find ways of lowering the amounts of pollutants from each individual diesel or gasoline engine to almost zero levels. The pollutants from these engines predominantly originate from emissions at cold start, in the case when gasoline is utilized, and high NOx emissions and particulates from diesel engines. READ MORE

  2. 2. Particle emissions from car brakes The influence of contact conditions on the pad-to-rotor interface

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Mattia Alemani; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Car brakes emissions; transition temperature; working conditions; environmental design; pin-on-disc; Bilbromsutsläpp; övergångstemperatur; arbetsförhållanden; miljödesign; pinne-på-skiva; Machine Design; Maskinkonstruktion;

    Abstract : Due to their adverse health effects emissions have been regulated for over three decades. Brake wear particulate matter is the most important non-exhaust source, however current knowledge is mainly limited to observational studies. READ MORE

  3. 3. Urban driving patterns - characterisation, variability and environmental implications

    University dissertation from Department of Technology and Society, Lund University

    Author : Eva Ericsson; Lund University.; Lunds universitet.; [2000]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Samhällsvetenskaper; Social sciences; Teknik; Technological sciences; speed limit; intersection density; driver age; gender; car performance; GPS; traffic flow; street environment; fuel consumption; deceleration; speed; acceleration; power demand; gear changing; exhaust emission;

    Abstract : Driving patterns, i.e. the speed and acceleration profiles of vehicles affect exhaust emission and fuel consumption considerably. READ MORE

  4. 4. Deactivation of commercial three-way catalysts: Experimental and theoretical studies

    University dissertation from Department of Technology and Society, Lund University

    Author : Anna Fathali; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; car exhaust; three-way catalyst TWC ; alumina; fuel-cut; palladium; hydrocarbon cracking; ceria; deactivation; oxygen storage capacity OSC ; rhodium; zirconia; sintering; monolith catalyst; catalysis;

    Abstract : This PhD thesis is a summary of my work with thermal deactivated commercial three way catalysts (TWCs). An examination of catalytic properties, before and after accelerated aging was performed, such as light-off temperature, specific surface area (BET), noble metal dispersion and oxygen storage capacity was performed. READ MORE

  5. 5. Development of high temperature SiC based field effect sensors for internal combustion engine exhaust gas monitoring

    University dissertation from Institutionen för fysik, kemi och biologi

    Author : Helena Wingbrant; Linköpings universitet.; Linköpings universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; field effect sensor; gas detection; selective catalytic reduction; lambda; cold start; ammonia; silicon carbide; engine exhaust.; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : While the car fleet becomes increasingly larger it is important to lower the amounts of pollutants from each individual diesel or gasoline engine to almost zero levels. The pollutants from these engines predominantly originate from high NOx emissions and particulates, in the case when diesel is utilized, and emissions at cold start from gasoline engines. READ MORE