Skip to Main content Skip to Navigation
Theses

Couplage d'un réservoir d'hydrure de magnésium avec une source externe de chaleur

Abstract : The main target of the thesis was to study the thermal integration of a magnesium hydride (MgH2) tank with an external heat source. At first, the evolution of material properties upon cycling were investigated. A large microstructural evolution was observed during the first cycles which impacts on kinetics of reaction and thermal conductivity. An expansion of the composites is also observed. Quantity and/or nature of the additives used during material preparation was identified as an important parameter controlling this phenomenon. Our measures show that mechanical strains on the tank wall due to this expension are stable after 40 hydrogenation cycles. A large number of cycles was applied to these composites which exhibits a very high stability upon cycling. A large scale magnesium hydride tank (10 kg MgH2) storing 6500 Nl of hydrogen in 35 minutes was developed and tested. The energy of reaction is exchanged with an external heat source by a heat transfer fluid. This installation allows to simulate the integration of a magnesium hydride tank into a co-generation system. A numerical model was developed in order to better understand and predict the behavior of this tank. A thermal integration test of the MgH2 with a high temperature fuel cell (SOFC) was performed at Politecnico di Torino.
Complete list of metadata

Cited literature [5 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00767941
Contributor : ABES STAR :  Contact
Submitted on : Thursday, December 20, 2012 - 4:08:15 PM
Last modification on : Friday, March 25, 2022 - 9:40:50 AM
Long-term archiving on: : Thursday, March 21, 2013 - 3:53:12 AM

File

22993_DELHOMME_2012_archivage....
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00767941, version 1

Collections

UGA | CNRS | NEEL | STAR

Citation

Baptiste Delhomme. Couplage d'un réservoir d'hydrure de magnésium avec une source externe de chaleur. Autre [cond-mat.other]. Université de Grenoble; UNIVERSITA DEGLI STUDI DI TORINO, 2012. Français. ⟨NNT : 2012GRENY024⟩. ⟨tel-00767941⟩

Share

Metrics

Record views

740

Files downloads

242