Sökning: "polymerelektrolytmembran"

Hittade 3 uppsatser innehållade ordet polymerelektrolytmembran.

  1. 1. The effect of material properties on PEM fuel cell catalysts on durable oxidation reduction activity

    Master-uppsats, KTH/Kemiteknik

    Författare :Xiaoling Jiang; [2023]
    Nyckelord :PEM fuel cell; catalyst; ORR activity; particle size; degradation; PEM-bränslecell; katalysator; syrgasreduktionsaktivitet; partikelstorlek; åldring;

    Sammanfattning : I detta examensarbete utforskas påverkan av partikelstorleken hos Pt-katalysatorer på kolbärare på syrereduktionen i polymerelektrolytmembran (PEM)-bränsleceller. Den elektrokemiskt aktiva ytarean, aktiviteten för syrereduktion och tillhörande degraderingshastigheter för de undersökta katalysatorerna beräknas och jämförs. LÄS MER

  3. 2. Investigation of Governing Physics in a PEM Electrolyzer

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Kian Hajireza; [2020]
    Nyckelord :chemical engineering; electrochemistry; polymer-electrolyte membrane; electrolysis; hydrogen production; COMSOL; physics-based mode; multiphase transport; kemiteknik; Technology and Engineering;

    Sammanfattning : Hydrogen gas is an energy source that has an energy density (per mass) that is three times as large than the energy density of natural gas. This qualifies hydrogen gas as a prime candidate for the fuel of tomorrow. One of the main research areas for hydrogen include the production of it as there are a vast amount of methods of hydrogen production. LÄS MER

  4. 3. Thermal energy management and chemical reaction investigation of micro-proton exchange membrane fuel cell and fuel cell system using finite element modelling

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Seán McGee; [2015]
    Nyckelord :0D model; 2D model; 3D model; chemical engineering; Comsol Multiphysics; energy; environment; FC; fluid dynamics; fuel cell systems; heat transfer; JAQ; laboratory experiments; mobile charging; modeling; modelling; myFC; PEM; polymer electrolyte membrane; PowerTrekk; process engineering; proton exchange membrane; sustainability; 0D-Modell; 2D-Modell; 3D-Modell; Chemieingenieurwesen; COMSOL Multiphysics; Energie; Umwelt; FC; Fluiddynamik; Brennstoffzellensysteme; Wärmeübertragung; JAQ; Laborexperimente; mobile Ladesysteme; Modellieren; myFC; PEM; Feststoffpolymer-Brennstoffzelle; PowerTrekk; Verfahrenstechnik; Protonenaustauschmembran-Brennstoffzelle; Nachhaltigkeit; 0D-modell; 2D-modell; 3D-modell; kemiteknik; Comsol Multiphysics; energi; miljö; FC; fluiddynamik; bränslecellssystem; värmeöverföring; JAQ; laboratorieförsök; mobil laddning; modellering; myFC; PEM; polymerelektrolytmembran; PowerTrekk; processteknik; protonväxlingsmembran; hållbarhet;

    Sammanfattning : Fuel cell systems are becoming more commonplace as a power generation method and are being researched, developed, and explored for commercial use, including portable fuel cells that appear in laptops, phones, and of course, chargers. This thesis examines a model constructed on inspiration from the myFC PowerTrekk, a portable fuel cell charger, using COMSOL Multiphysics, a finite element analysis software. LÄS MER