Sökning: "proton exchange membrane fuel cells"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden proton exchange membrane fuel cells.

  1. 1. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Adam Jacobsson Trönndal; [2023]
    Nyckelord :Fuel cells; Phosphoric acid; Polybenzimidazole; PA-PBI; Ionic liquid; IL; High temperature proton exchange membrane fuel cell; HT-PEMFC; Electrochemical impedance spectroscopy; EIS; IL-PBI; Chemical engineering; Technology and Engineering;

    Sammanfattning : In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. LÄS MER

  3. 2. Influence of current harmonics on the degradation of the catalyst coated membrane in PEMFC

    Master-uppsats, KTH/Kemiteknik

    Författare :Evelina Ahlén Norberg; [2022]
    Nyckelord :Proton Exchange Membrane Fuel Cell; Ripple Current; Current Harmonics; Degradation; Marine transportation; Polymerelektrolytbränslecell; Rippelström; Strömoscillation; Åldring; Sjötransport;

    Sammanfattning : Sjöfarten är idag dominerad av förbränningsmotorer som är beroende av fossila drivmedel. Elektrifiering är en av huvudstrategierna för att möjliggöra fossilfri energiförsörjning inom internationell sjöfart. LÄS MER

  4. 3. Developing an innovative unit of power supply to improve the sustainability of data centers : A techno economic analysis of replacing diesel generators with fuel cells as backup power generation for data centers

    Uppsats för yrkesexamina på grundnivå, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Filip Agrell; Agit Ablay; [2022]
    Nyckelord :Fuel Cells; Hydrogen; UPS;

    Sammanfattning : As the amount of data centers continues to increase, their electricity consumption and emissions are being reviewed. The current backup solution is a conventional diesel generator running on fossil fuels. As part of climate goals to reduce carbon emissions, renewable energy sources like fuel cells running on hydrogen are being considered. LÄS MER

  5. 4. Hydrogen Fuel Cell Lifetime Simulation in Marine Applications

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Yifeng Zhong; [2022]
    Nyckelord :maritime transportation; FEMFC; lifetime simulation; degradation mechanism; empirical relationship; semi-empirical approach; sjötransport; PEM-bränsleceller; livslängdssimulering; nedbrytningsmekanism; empiriskt samband; semi-empiriskt tillvägagångssätt;

    Sammanfattning : Maritime transportation emits about 3% of global greenhouse gas, International Maritime Organization (IMO) aims to reduce shipping’s emissions by 50% with respect to 2008 levels. Proton exchange membrane fuel cells (PEMFCs) are considered among the most promising clean technologies for decarbonizing the maritime sector. LÄS MER

  7. 5. Modeling and Evaluation of High Temperature PEM Fuel Cells for Truck Applications

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Johannes Wrangstål; Marcus Ögren; [2022]
    Nyckelord :Modeling; Fuel Cell; FCHEV; HTPEM; LTPEM; ECMS; High temperature proton exchange membrane;

    Sammanfattning : With increasing demands on lowering carbon emissions, fuel cell hybrid electric vehicles (FCHEV) have been seen as an alternative to the fossil-fuel driven trucks of today. These would have less emissions and strive to have the same range as any diesel driven transport vehicle. LÄS MER