Sökning: "Katarina Wiezell"

Hittade 1 avhandling innehållade orden Katarina Wiezell.

  1. 1. Modelling and Experimental Investigation of the Dynamics in Polymer Electrolyte Fuel Cells

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Katarina Wiezell; Göran Lindbergh; Lars Pettersson; Anders Dahlkild; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polymer electrolyte fuel cell; modelling; electrochemical impedance spectroscopy; water transport; membrane; NATURAL SCIENCES Chemistry Analytical chemistry Electrochemistry; NATURVETENSKAP Kemi Analytisk kemi Elektrokemi;

    Sammanfattning : In polymer electrolyte fuel cells (PEFC) chemical energy, in for example hydrogen, is converted by an electrochemical process into electrical energy. The PEFC has a working temperature generally below 100 °C. Under these conditions water management and transport of oxygen to the cathode are the parameters limiting the performance of the PEFC. LÄS MER