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Review and evaluation of metal-hydride-based hydrogen sensors as safety devices for future sustainable aviation

Franke, Florian and Kazula, Stefan and Enghardt, Lars (2023) Review and evaluation of metal-hydride-based hydrogen sensors as safety devices for future sustainable aviation. Journal of Physics: Conference Series (2454). Institute of Physics (IOP) Publishing. doi: 10.1088/1742-6596/2454/1/012001. ISSN 1742-6588.

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Official URL: https://iopscience.iop.org/article/10.1088/1742-6596/2454/1/012001


This paper presents an overview of metal-hydride-based hydrogen sensors and evaluates their potential for utilization in aerospace safety applications in future hydrogen-powered aviation. The 'electrical resistance', 'cantilever expansion', 'nanogap expansion', 'fiber optical', 'chemochromic optical' and 'acoustic' sensing principles are being described. Requirements including specific performance parameters for hydrogen sensors in aerospace safety applications are identified. Evaluation criteria are derived from these requirements and finally the sensing mechanisms are evaluated by means of a weighted point rating. The results of this evaluation reveal the high potential of 'electrical resistance', 'cantilever expansion', 'nanogap expansion' and 'fiber optical' sensors, although none of these principles meets all the requirements yet. With the transition to hydrogen-based aviation, metal hydrides and its various applications will become more attractive. Synergies between these technologies may further drive the research and development progress, so that metal-hydride-based hydrogen sensors can overcome their current drawbacks and contribute to the transition to future hydrogen-powered sustainable aviation.

Item URL in elib:https://elib.dlr.de/195364/
Document Type:Article
Title:Review and evaluation of metal-hydride-based hydrogen sensors as safety devices for future sustainable aviation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Franke, FlorianUNSPECIFIEDhttps://orcid.org/0009-0006-9073-1457136540035
Kazula, StefanUNSPECIFIEDhttps://orcid.org/0000-0002-9050-1292136540036
Date:17 March 2023
Journal or Publication Title:Journal of Physics: Conference Series
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:No
Publisher:Institute of Physics (IOP) Publishing
Keywords:Metal Hydrides, Hydrogen Sensors, Aviation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Components and Emissions
Location: Cottbus
Institutes and Institutions:Institute of Electrified Aero Engines
Deposited By: Franke, Florian
Deposited On:08 Jun 2023 10:10
Last Modified:19 Oct 2023 15:24

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