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

JOURNAL OF POWER SOURCES

卷:342

Article

Buerger, Inga¹  Dieterich, Mila¹  Pohlmann, Carsten^2,3  Roentzsch, Lars²  Linder, Marc¹ 

[1] German Aerosp Ctr DLR, Inst Engn Thermodynam, Thermal Proc Technol, Pfaffenwaldring 38-40, D-70569 Stuttgart, Germany

[2] Fraunhofer Inst Mfg Technol & Adv Mat IFAM, Branch Lab Dresden, Winterbergstr 28, D-01277 Dresden, Germany

[3] Aaqius & Aaqius, 12 Rue Vivienne, F-75002 Paris, France

关键词: Metal hydride;    Stationary application;    Reactor design;    Metal hydride-graphite composites;   

DOI  :  10.1016/j.jpowsour.2016.12.108

来源: Elsevier

【 摘 要 】

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 degrees C and 40 degrees 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 W-el 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. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free