On the hydrogen storage properties and life cycle evaluation of a room temperature hydride for scale-up applications
The case of an AB2-alloy
Publication date
2025-03-20
Document type
Forschungsartikel
Author
Hoberg, A. Robelo
Hegen, O.
Kötter, A.
Organisational unit
Publisher
Elsevier
Series or journal
International Journal of Hydrogen Energy
ISSN
Periodical volume
118
First page
482
Last page
499
Part of the university bibliography
✅
Language
English
Keyword
Hydrogen
Interstitial hydrides
Life-cost analysis
Kinetic
Thermodynamic
Large scale
Abstract
In this work, 1.25 t of AB₂-commercially available hydride-forming alloy is taken as a case study for material selection for large-scale systems. Systematic experimental characterizations, modeling, and life cycle-cost assessment at this industrial scale are performed. Based on the thermodynamic characterization, the equilibrium pressure is calculated by applying the most used Nishizaki and novel 3D representation with 2D-bilinear interpolation approaches, giving accurate values. The kinetic model is comprehensively and successfully developed in a wide range of temperatures and pressures by applying the separable variable method. Life cycle assessment shows that the CO₂ emissions of these kinds of systems can be minimized by increasing the share of recycled material and by using waste heat sources for dehydrogenation. The economic analysis clarifies the influence of the components on the economic viability of large hydride-based systems for emergency power supply. Finally, guidelines are proposed for the development of hydride-based integrated renewable energy systems.
Description
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Version
Published version
Access right on openHSU
Metadata only access