Search for dissertations about: "Fuel Cell"

Showing result 16 - 20 of 293 swedish dissertations containing the words Fuel Cell.

  2. 16. Functionalized mesoporous carbons as non-precious metal fuel cell catalysts

    Author : Johanna Dombrovskis; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; electrocatalysis; oxygen reduction reaction; non-precious metal catalyst; mesoporous carbon; fuel cell; X-ray absorption spectroscopy;

    Abstract : Fuel cells allow for clean and efficient chemical to electrical energy conversion. However, their high price significantly limits the market viability of the technology. This is to a large part due to the high cost of the precious metals used in most fuel cell catalysts. READ MORE

  4. 17. On Hybrid Fuel Cell and Battery Systems for Maritime Applications

    Author : Ariel Chiche; Carina Lagergren; Göran Lindbergh; Ivan Stenius; Lars Eriksson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel Cell; Autonomous Underwater Vehicles AUVs ; Hybridization; Optimization; Buoyancy; Battery; Hydrogen Storage; Oxygen Storage; Dead-End Anode; Purge; Bränslecell; autonom undervattensfarkost AUV ; hybridisering; optimering; flytkraft; batteri; vätgaslagring; syrelagring.; Chemical Engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

    Abstract : Hydrogen is seen as a key player in leading to a sustainable energy sector and decarbonizing the transport sector. Proton Exchange Membrane Fuel Cells (PEMFCs) consume hydrogen and oxygen to generate water, heat and electricity. READ MORE

  5. 18. Design and characterization of direct electron transfer based biofuel cells including tests in cell cultures

    Author : Peter Lamberg; Malmö högskola; []
    Keywords : biofuel cell; enzymatic fuel cell; direct electron transfer; cellobiose dehydrogenase; biocompatibility; enzyme kinetics; cell culture;

    Abstract : Enzymatic fuel cells (EFCs) are bioelectronic devices based on redox enzymes, which convert chemical energy into electrical energy via biochemical reactions. A major difficulty to overcome is to successfully connect (using e.g., immobilization) the enzymes to the electrode surface. READ MORE

  6. 19. Modelling of a proton exchange membrane fuel cell system for automotive applications

    Author : Kristina Johansson; KTH; []
    Keywords : Proton exchange membrane PEM; Fuel cell vehicle; Hydrogen; Hydrogen storage; Fuel consumption; Electric vehicles; Drive;

    Abstract : .... READ MORE

  7. 20. Control and Optimization of Fuel Cell Based Powertrain for Automotive Applications

    Author : Qian Xun; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power distribution; Cut-off frequency; Fuel cell; Chance-constraint co-design optimization; Supercapacitors; Convex programming; Electric vehicles; Load disturbance compensator; DC-link voltage; Robust co-design optimization; Batteries;

    Abstract : Fuel cell powered electric vehicles, with fast-refueling time, high energy density, and zero CO2 emissions, are becoming a promising solution for future fossil-free transportation. However, the relatively slow dynamic response and the inability of recovering the regenerative energy make vehicles solely powered by fuel cells not an immediately attractive solution. READ MORE