Sökning: "radiative capture"

Visar resultat 11 - 15 av 25 avhandlingar innehållade orden radiative capture.

  1. 11. Radiative Properties and Combustion Chemistry in Oxy-Fuel Flames – Experiments and Modelling Elements

    Författare :Stefan Hjärtstam; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD; Numerical modelling; Oxy-fuel; Global mechanism; Combustion;

    Sammanfattning : The current understanding of global warming translates into an urgent need to reduce anthropogenic CO2 emissions. Carbon capture and storage is a measure to reduce CO2 emissions and oxy-fuel combustion is emerging as one possible CO2 capture process. LÄS MER

  3. 12. Earth's albedo in a changing climate

    Författare :Frida A-M Bender; Henning Rodhe; Annica Ekman; William Collins; Stockholms universitet; []
    Nyckelord :albedo; Earth s radiative budget; cloud properties; climate sensitivity; CMIP3; GCMs; satellite observations; NATURAL SCIENCES; NATURVETENSKAP; atmosfärvetenskap; Atmospheric Sciences;

    Sammanfattning : The albedo is a key parameter in the radiative budget of the Earth and a primary determinant of the planetary temperature and is therefore also central to questions regarding climate stability, climate change and climate sensitivity. Climate models and satellite observations are essential for studying the albedo, and the parameters determining it, on large spatial and temporal scales. LÄS MER

  4. 13. Studies of the nuclear processes of proton capture photon production and spallation neutron emission with advanced experimental techniques

    Författare :Johan Thun; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Kärnfysik; Nuclear physics; Kärnfysik; Applied Nuclear Physics; tillämpad kärnfysik;

    Sammanfattning : A series of nuclear reaction experiments have been performed in the intermediate energy range up to 1.6 GeV using advanced techniques to detect and measure neutral ejectiles resulting mainly from proton bombardment of both light and heavy nuclei. LÄS MER

  5. 14. Combustion, Fluid Dynamics and Heat Transfer in Oxy-fuel and Air-Fired CFB boilers

    Författare :Sadegh Seddighi; Chalmers tekniska högskola; []
    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; Carbon Capture and Storage; Combustion; Circulating Fluidized Bed; Oxy-Fuel; Multi-Phase Reacting Flow; Boiler Design; Emission; Fluid Dynamics; Heat Transfer;

    Sammanfattning : The studies described in this thesis develop and encode modeling tools for the design and scale-up of oxy-fuel circulating fluidized bed (CFB) boilers across a wide range of operational conditions. The modeling comprises fluid dynamics, combustion, and heat transfer and uses expressions that are proposed in this work or derived from the literature, together with experimental data obtained under both oxy-fuel-fired and air-fired conditions. LÄS MER

  7. 15. Heavy particle interference and diffraction in fast electron transfer collisions

    Författare :Magnus Gudmundsson; Henrik Cederquist; Henning Schmidt; Erik Horsdal; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; fysik; Physics;

    Sammanfattning : This thesis presents experimental results from the synchrotron cooler and storage ring CRYRING on charge transfer processes in fast electron transfer collisions using high-resolution cold target recoil-ion momentum spectroscopy. The main focus of these studies was to investigate a key concept of quantum mechanics: the wave-particle duality. LÄS MER