Cristin-resultat-ID: 1686895
Sist endret: 21. mars 2019 23:26
Resultat
Vitenskapelig foredrag
2018

Local Hydrogen Supply for Zero Emission Transport

Bidragsytere:
  • Øystein Ulleberg og
  • Ragnhild Hancke

Presentasjon

Navn på arrangementet: H2fc2018 – International Hydrogen and Fuel Cell Conference
Sted: Trondheim
Dato fra: 14. mai 2018
Dato til: 15. mai 2018

Arrangør:

Arrangørnavn: NTNU

Om resultatet

Vitenskapelig foredrag
Publiseringsår: 2018

Klassifisering

Vitenskapsdisipliner

Miljøteknologi

Emneord

Elektrolytisk hydrogenproduksjon • Hydrogen infrastruktur • Hydrogen

Beskrivelse Beskrivelse

Tittel

Local Hydrogen Supply for Zero Emission Transport

Sammendrag

The supply of hydrogen for zero emission transport is challenging, especially if the hydrogen is to be produced locally based on renewable energy sources. In order to claim zero emission in the full value chain (from production to utilization), it is necessary to avoid CO2-emissions from the production and distribution of hydrogen. In countries where the fraction of renewable power is very high, such as in Norway (nearly 100% with hydroelectric power), it is natural consider water electrolysis as the main production method. Reforming of natural gas with CO2-capture and storage is also an option, but this can only be realized in large centralized plants designed to capture and store several million tonnes of CO2 per year. Hence, our options today are limited to reforming of biogas and renewable energy based water electrolysis. The focus in Norway is today on the development of water electrolysis based hydrogen supply systems. In Norway there is currently a national discussion on how and where to build up hydrogen refueling infrastructure. Some argue that a national network of 700 bar hydrogen refueling stations must be established as soon as possible so that the market for fuel cell passenger cars can be allowed to grow faster, while others argue that we should focus on establishing 350 bar stations for fleet vehicles such as trucks and buses. On-site small water electrolyzer systems are modular, and can be developed for many different sizes and capacities. Hydrogen can also be trucked in from a centralized hydrogen production plant to the hydrogen refueling stations. A combination with some local hydrogen supply (via water electrolysis) and some trucked in hydrogen may also be an option. The focus in this presentation is on 350 bar systems for fleets of heavy duty fuel cell vehicles (trucks). A techno-economic modelling tool which can be used to estimate the costs of different designs of water electrolysis based hydrogen refueling stations has been developed at IFE. This tool has been applied to different case studies over the past few years. The program developed can be adjusted and used to access the techno-economics of a wide range of renewable power based water electrolyzers systems, including hydrogen compression, storage and dispensing systems. The models are based on up-to-date technical performance data obtained from leading PEM and alkaline water electrolyzer and other hydrogen technology suppliers around the world, and cost data collected in various projects conducted at IFE over the past few years. Results from techno-economic analyses of 350 bar hydrogen refueling stations (based on water electrolysis) show how it is possible to find cost-effective system designs for small fleets of heavy duty vehicles.

Bidragsytere

Øystein Ulleberg

  • Tilknyttet:
    Forfatter
    ved Fornybare energisystemer ved Institutt for energiteknikk
Aktiv cristin-person

Ragnhild Hancke

  • Tilknyttet:
    Forfatter
    ved Fornybare energisystemer ved Institutt for energiteknikk
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