Cristin-resultat-ID: 1905506
Sist endret: 18. mai 2021, 11:33
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Hydrogen costs from water electrolysis at high temperature and pressure

Bidragsytere:
  • Thomas Holm
  • Tory Borsboom-Hanson
  • Omar E. Herrera og
  • Walter Merida

Tidsskrift

Energy Conversion and Management
ISSN 0196-8904
e-ISSN 1879-2227
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Trykket: 2021
Volum: 237
Artikkelnummer: 114106

Importkilder

Scopus-ID: 2-s2.0-85104391836

Beskrivelse Beskrivelse

Tittel

Hydrogen costs from water electrolysis at high temperature and pressure

Sammendrag

Green hydrogen demand will increase in the coming decades, and water electrolysis can enable low- or zero-carbon production pathways. High-temperature and pressure operation can improve electrode kinetics and reduce compression requirements. In this work, the economics of water electrolysis were analyzed under these conditions by making an electrochemical model. The energy consumption was calculated to obtain the levelized cost of hydrogen under varying temperature, pressure, and catalyst performance. The lowest cost and energy requirements occurred at 270–310 °C and 700 bar. Our results illustrate a trade-off between improved kinetics at higher temperatures and increased operating costs due to high water activities. With performance similar to the best available measurements, operation under high temperature and pressure was competitive if electrolyzer system costs are less than 25% higher than their low-temperature counterparts.

Bidragsytere

Thomas Holm

  • Tilknyttet:
    Forfatter
    ved Fornybare energisystemer ved Institutt for energiteknikk
  • Tilknyttet:
    Forfatter
    ved The University of British Columbia

Tory Borsboom-Hanson

  • Tilknyttet:
    Forfatter
    ved The University of British Columbia

Omar E. Herrera

  • Tilknyttet:
    Forfatter
    ved The University of British Columbia

Walter Merida

  • Tilknyttet:
    Forfatter
    ved The University of British Columbia
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