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Standardized hydrogen storage module with high utilization factor based on metal hydride-graphite composites

Bürger, Inga and Dieterich, Mila and Pohlmann, Carsten and Röntzsch, Lars and Linder, Marc (2017) Standardized hydrogen storage module with high utilization factor based on metal hydride-graphite composites. Journal of Power Sources, 342, pp. 970-979. Elsevier. DOI: 10.1016/j.jpowsour.2016.12.108 ISSN 0378-7753

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Abstract

In view of hydrogen based backup power systems or small-scale power2gas units, hydrogen storages based on metal hydrides offer a safe and reliable solution. By using Hydralloy C5 as suitable hydride forming alloy, the present tank design guarantees very simple operating conditions: pressures between 4 bar and 30 bar, temperatures between 15 C and 40 C and minimal efforts for thermal management in combination with fast and constant charging and discharging capabilities. The modular tank consists of 4 layers with 5 reactor tubes each that are filled with metal hydride-graphite composites of a diameter of 21 mm. Experiments show that each layer of this tank is able to desorb the desired amount of hydrogen for a fuel cell operation at electrical power of 160 Wel for 100 min reaching a utilization factor of 93% of the stored hydrogen at RC. Furthermore, the experimental results of modularity, increasing loads and the electric air ventilation are presented.

Item URL in elib:https://elib.dlr.de/110792/
Document Type:Article
Title:Standardized hydrogen storage module with high utilization factor based on metal hydride-graphite composites
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bürger, Ingainga.buerger (at) dlr.deUNSPECIFIED
Dieterich, Milamila.dieterich (at) dlr.deUNSPECIFIED
Pohlmann, CarstenUNSPECIFIEDUNSPECIFIED
Röntzsch, Larslars.roentzsch (at) ifam-dd.fraunhofer.deUNSPECIFIED
Linder, Marcmarc.linder (at) dlr.deUNSPECIFIED
Date:28 February 2017
Journal or Publication Title:Journal of Power Sources
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:342
DOI :10.1016/j.jpowsour.2016.12.108
Page Range:pp. 970-979
Publisher:Elsevier
ISSN:0378-7753
Status:Published
Keywords:Metal Hydride, stationary application, reactor design, metal Hydride-graphite composites
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC-Antriebsstrang (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Bürger, Inga
Deposited On:02 Mar 2017 09:02
Last Modified:31 Jul 2019 20:08

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