Sökning: "combustion time"

Visar resultat 21 - 25 av 395 avhandlingar innehållade orden combustion time.

  1. 21. Alkali-containing aerosol particles-release during biomass combustion and ambient air concentrations

    Författare :Borka Kovacevik; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aerosol; alkali metal; sodium; potassium; pyrolysis; combustion; biomass burning.;

    Sammanfattning : Air pollution in the form of particles has considerable influence on human health and climate. Atmospheric aerosol particles arise from direct emissions of particles and from the conversion of certain gases to particles in the atmosphere. LÄS MER

  3. 22. CFD Modeling of Combustion in Flexi-Fuel Burners at Gas Turbine Conditions

    Författare :Abdallah Abou-Taouk; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAS-SST; Global reaction mechanism; CFD; LES; RANS; Combustion; PSR; Chemistry;

    Sammanfattning : The main source of energy in the nearest future will come from fossil fuels. Increasing demands on environmentally friendly energy conversion implies that pollutants, such as CO and NOx, need to be reduced. LÄS MER

  4. 23. Combustion of selected alternative liquid fuels at oxy-fuel conditions: experiments and modelling

    Författare :Jenny D. Nauclér; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Alcohols; Nitromethane; Chemistry; Laminar burning velocity; Ignition; Combustion; Fysicumarkivet A:2016:Nauclér;

    Sammanfattning : Combustion of fuels is a major source of energy and at the same time a threat to the environment. Carbon dioxide (CO2) emissions are one of the obstacles on the route to cleaner energy. Combining Carbon Capture and Storage-technology (CCS) with use of biofuels lead to a negative net release of CO2 can be achieved. LÄS MER

  5. 24. Numerical Study on Combustion Features of Gasified Biomass Gas

    Författare :Xiaoxiang Zhang; Torsten Fransson; Jeevan Jayasuriya; Reza Fakhrai; Truls Liliedahl; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kinetic model; gasified biomass gas; premixed combustion; laminar flame speed; ignition delay time; Biotechnology; Bioteknologi; Energiteknik; Energy Technology;

    Sammanfattning : There is a great interest to develop biomass combustion systems for industrial and utility applications. Improved biomass energy conversion systems are designed to provide better combustion efficiencies and environmental friendly conditions, as well as the fuel flexibility options in various applications. LÄS MER

  7. 25. Spray combustion with multiple-injection in modern engine conditions

    Författare :Ahmad Hadadpour; Strömningsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spray combustion; Multiple-injection; Internal combustion engine; LES; FGM; ESF;

    Sammanfattning : Combustion of fuel in diesel engines emits substances harmful to the environment such as soot. These emissions can be reduced by either in-cylinder treatments or after-treatments. One of the common in-cylinder treatments is multiple-injection, which divides a single fuel injection to multiple smaller injections. LÄS MER