Details

Autor(en) / Beteiligte

• Bürger, Inga
• Dieterich, Mila
• Pohlmann, Carsten
• Röntzsch, Lars
• Linder, Marc

Titel

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

Ist Teil von

• Journal of power sources, 2017-02, Vol.342, p.970-979

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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. [Display omitted] •Standardized reactor design for stationary metal hydride hydrogen storage.•Metal hydride-graphite composites for compact system with low temperature gradient.•Utilization factor of 93% reached at relevant charging conditions.•System scalability to higher loads.