Search for dissertations about: "reducing emission"

Showing result 16 - 20 of 150 swedish dissertations containing the words reducing emission.

  1. 16. Particles and unregulated emissions from CI engines subjected to emission control

    Author : Kent Nord; Luleå tekniska universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Abstract : Compression ignited (CI) engines, commonly known as diesel engines, are widely used power sources with complex emissions used in on-road and nonroad applications. To find out the impact of diesel exhaust emissions on health and the environment, both regulated and unregulated exhaust gas properties have to be evaluated. READ MORE

  2. 17. Reduction of the N2O Emission from Fluidized Bed Combustion by Afterburning

    Author : Lennart Gustavsson; Chalmers University of Technology; []
    Keywords : chemical modelling; fuel injection; nitrous oxide; fluidized bed combustion; fluidized beds; afterburning; homogeneous heterogeneous reactions; N2O reduction; fluidized bed boiler; N2O emissions;

    Abstract : A method for reducing N2O emissions from fluidized bed combustion is presented and investigated. In contrast to flame combustion, fluidized bed combustion generates significant amounts of nitrous oxide (N2O) which are emitted to the atmosphere. READ MORE

  3. 18. Methods for Characterization of the Diesel Combustion and Emission Formation Processes

    Author : Mikael Lindström; Hans-Erik Ångström; Werner Hentschel; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; diesel engine emissions; SRA - Energy; SRA - Energi;

    Abstract : In this thesis various aspects of the diesel engine fuel injection, combustion and emission formation processes have been evaluated. Several types of evaluation tools and methods have been applied. Fuel spray momentum was used to characterize injection rate and hole-to-hole variations in fuel injectors. READ MORE

  4. 19. A study of galaxy evolution: stacking emission lines from distant galaxies

    Author : Jean Baptiste Jolly; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Galaxies: evolution – Galaxies: high-redshift – methods: stacking – methods: data analysis – techniques: interferometric;

    Abstract : To draw up a thorough description of galaxy evolution exhaustive observations are needed, of distant but mainly of faint galaxies. Describing low mass galaxies is important to move the focus from the tip of the iceberg. READ MORE

  5. 20. Life cycle primary energy use and carbon emission of residential buildings

    Author : Ambrose Dodoo; Leif Gustavsson; Svend Svendsen; Mittuniversitetet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Byggteknik; Civil engineering;

    Abstract : In this thesis, the primary energy use and carbon emissions of residential buildings are studied using a system analysis methodology with a life cycle perspective. The analysis includes production, operation, retrofitting and end-of-life phases and encompasses the entire natural resource chain. READ MORE