Sökning: "proton exchange membrane"

Visar resultat 1 - 5 av 29 uppsatser innehållade orden proton exchange membrane.

  1. 1. Benchmarking a 1 kW hybrid hydrogen fuel cell system

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Jonathan Envall; [2023]
    Nyckelord :PEMFC; fuel cell; UAV; hybrid; Technology and Engineering;

    Sammanfattning : Unmanned Aerial Vehicles (UAV's) offer great versatility in the tasks that they may perform and they are today used in many sectors. The H24LEO project, administered by the Lund University School of Aviation, aims to develop and demonstrate a hybrid proton-exchange membrane fuel cell-powered UAV to aid in search and rescue operations performed by the Swedish Maritime Administration, and reduce the greenhouse gas emissions compared to similar work performed by helicopters. LÄS MER

  3. 2. Modelling and Simulation of Hydrogen Electrolyzers for Power System Applications

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Javier Vinuelas Ferrando; [2023]
    Nyckelord :;

    Sammanfattning : The rapid increase in the share of intermittent renewables in the energy mix is exacerbating the complexity of the grid stability. To facilitate the inclusion of these green technologies and achieve the climate targets set by the EU, the generation and storage of hydrogen through electrolysis may be crucial. LÄS MER

  4. 3. 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

  5. 4. Potentiella användningsområden för spillvärme från vätgasproduktion

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Jesper Öhman; [2023]
    Nyckelord :Energiåtervinning; Energilagring; MBBR; Spillvärme; Vätgas;

    Sammanfattning : Vätgas tar en allt större plats i den gröna omställningen inom gruv- och stålindustrin vilket initiativtagande projekt såsom Hybrit och H2 Green Steel bevisat. Vätgas framställs ofta från fossila bränslen vilket genererar koldioxidutsläpp men om produktionen istället sker med elektricitet från förnybara energikällor anses tillverkningen förnybar. LÄS MER

  7. 5. Site suitability assessment for green hydrogen production in the Valencian Community (Spain)

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Alberto Romero Boix; [2023]
    Nyckelord :Green hydrogen; renewable electricity; solar; wind; water; electrolysis; proton exchange membrane; desalination; levelized cost of hydrogen; Valencian Community.; Grön vätgas; förnybar el; solenergi; vindkraft; vatten; elektrolys; protonbytesmembran; avsaltning; nivåkostnad för vätgas; Valencianska gemenskapen.;

    Sammanfattning : The Next Generation funds have promoted energy transition projects and specially in Spain many green hydrogen projects are being presented throughout the territory. When developing renewable hydrogen-related projects multiple parameters and inputs must be considered since the characteristics of the sites' surroundings will have a great impact in the profitability of the project. LÄS MER