Reactive metals as energy storage and carrier media: use of aluminum for power generation in fuel cell‐based power plants
Ottaviano, Panfilo A.
Schneider, Rebekka V.
Energy Technology ; 8 (2020), 9. - Art.-Nr. 2000233. - ISSN 2194-4288. - eISSN 2194-4296
Link to original publicationhttps://dx.doi.org/10.1002/ente.202000233
External cooperationsKarlsruher Institut für Technologie
University of Perugia
Document versionpublished version (publisher's PDF)
n recent years, the energy production sector has experienced a growing interest in new energy vectors enabling energy storage and, at the same time, intersectoral energy applications among users. Hydrogen is one of the most promising energy storage and carrier media featuring a very high gravimetric energy density, but a rather low volumetric energy density. To this regard, this study focuses on the use of aluminum as energy storage and carrier medium, offering high volumetric energy density (23.5 kWh L−1), ease to transport and stock (e.g., as ingots), and is neither toxic nor dangerous when stored. In addition, mature production and recycling technologies exist for aluminum. Herein, the performance of power systems driven by aluminum powder in terms of electrical efficiency (η(I)) and round-trip efficiency (RTE) is analyzed. Along with the additional advantages relating to high volumetric energy density, and safety and management aspects, the aluminum-based technology appears to outperform the power-to-power systems based on hydrogen and liquid fuels.
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Subject headings[GND]: Festoxidbrennstoffzelle
[LCSH]: Electrical engineering | Solid oxide fuel cells
[Free subject headings]: aluminum energy carriers | aluminum steam combustion | electric energy storage | reactive metals
[DDC subject group]: DDC 620 / Engineering & allied operations
LicenseCC BY-SA-NC 4.0 International
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DOI & citation
Please use this identifier to cite or link to this item: http://dx.doi.org/10.18725/OPARU-43044