Search for dissertations about: "fuel fabrication"

Showing result 1 - 5 of 21 swedish dissertations containing the words fuel fabrication.

  1. 1. Experimental and theoretical studies of nitride fuels

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Merja Pukari; Janne Wallenius; Toru Ogawa; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fast reactor fuel; ab-initio modelling; fuel fabrication; inert matrix nitride fuel;

    Abstract : With respect to nitrides being considered as potential fast reactor fuels, research is conducted on the out-of-pile thermophysical properties, sintering and fabrication processes, gas migration mechanisms, self-diffusion and point defect behaviour of actinide nitrides, their surrogate materials, and the inert matrix material ZrN . The experimental research, carried out in the framework of qualifying fuel for the European Lead Cooled Training Reactor (ELECTRA), shows that sintered ZrN and (Dy,Zr)N pellet densities are influenced by the oxygen concentration in the material. READ MORE

  2. 2. Innovations in nanomaterials for proton exchange membrane fuel cells

    University dissertation from Umeå : Umeå University

    Author : Robin Sandström; Thomas Wågberg; Ludvig Edman; Florian Nitze; Licheng Sun; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Fuel Cells; Membrane Electrode Assembly; Oxygen Reduction Reaction; Platinum alloy catalyst; Nanoparticles; Gas Diffusion Electrode; Proton Exchange Membrane; Materials Science; materialvetenskap; fasta tillståndets fysik; Solid State Physics;

    Abstract : Hydrogen technologies are rapidly receiving increased attention as it offers a renewable energy alternative to the current petroleum-based fuel infrastructure, considering that continued large-scale use of such fossil fuels will lead to disastrous impacts on our environment. The proton exchange membrane fuel cell should play a significant role in a hydrogen economy since it enables convenient and direct conversion of hydrogen into electricity, thus allowing the use of hydrogen in applications particularly suited for the transportation industry. READ MORE

  3. 3. Thin-Film Electrocatalysts for Polymer Electrolyte Fuel Cells - Activity, Durability and Proton Conduction

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Björn Wickman; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nafion; thin film evaporation; PEMFC; platinum; titanium oxide; cathode; fuel cell; oxygen reduction reaction; electrocatalyst; proton conduction; model systems;

    Abstract : The polymer electrolyte membrane fuel cell (PEMFC) is a potential technology for future energy conversion in sustainable energy systems. By using hydrogen from renewable energy sources and oxygen from the air, the fuel cell produces electricity with water as the only exhaust. READ MORE

  4. 4. Fabrication of Nanostructured Materials for Energy Applications

    University dissertation from Stockholm : KTH

    Author : Shanghua Li; Mamoun Muhammed; Sanjay Mathur; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Materials Chemistry; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Materials chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Materialkemi;

    Abstract : World energy crisis has triggered more attention to energy saving and energy conversion systems with high efficiency. There is a growing awareness that nanoscience and nanotechnology can have a profound impact on energy generation, conversion, and recovery. READ MORE

  5. 5. Development and Characterisation of Cathode Materials for the Molten Carbonate Fuel Cell

    University dissertation from Stockholm : Materialvetenskap

    Author : Athula Wijayasinghe; [2004]
    Keywords : molten carbonate fuel cell MCFC ; MCFC cathode; LiFeO2-LiCoO2-NiO ternary compositions; electrical conductivity; porous gas diffusion electrodes; polarization; electrochemical performance; post-cell characterization;

    Abstract : Among the obstacles for the commercialization of the MoltenCarbonate Fuel Cell (MCFC), the dissolution of thestate-of-the-art lithiated NiO cathode is considered as aprimary lifetime limiting constraint. Development ofalternative cathode materials is considered as a main strategyfor solving the cathode dissolution problem. READ MORE