Title of article :
A new MgH2 tank concept using a phase-change material to store the heat of reaction
Author/Authors :
Garrier، نويسنده , , S. and Delhomme، نويسنده , , B. and de Rango، نويسنده , , Joseph P. and Marty، نويسنده , , P. and Fruchart، نويسنده , , D. and Miraglia، نويسنده , , S.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
The formation of magnesium hydride under hydrogen pressure is highly exothermic. The enthalpy of reaction represents 31% of the lower heating value (LHV) of the absorbed hydrogen. A new concept of MgH2 tank was developed to store the heat of reaction by using a phase-change material (PCM). The heat of desorption is mainly provided by the latent heat of solidification of the PCM. A metallic alloy based on Mg–Zn eutectic was selected as PCM in order to enhance the thermal exchange with the MgH2 compacts. A pilot tank of about 7000 NL of hydrogen was designed and tested under various experimental conditions. Desorption was achieved in 3 h and the daily storage efficiency was around 70%.
Keywords :
Hydrogen storage , Magnesium hydride , Heat of reaction , phase change material , latent heat , Energy efficiency
Journal title :
International Journal of Hydrogen Energy
Journal title :
International Journal of Hydrogen Energy
