High performance metal hydride based thermal energy storage systems for concentrating solar power
Thermal energy storage (TES) systems based on metal hydride pairs using new class of high efficiency materials are evaluated. The use of low temperature metal cost effective material such hydrides NaAlH4 and Na3AlH6 became possible. In order to obtain high efficiency at reasonable cost high temperature materials were altered by the addition of materials to form reversible alloys and hydrides. The compounds were cycled to determine stability of hydrogen capacity over extended number of cycling. A thermal energy storage system based on two metal hydride pairs such as CaAl/CaH2/Al:NaAlH4, Ca2Si/CaH2/Si:Na3AlH6 and NaMgH2F—Si/Mg2Si—NaF:Na3AlH6 allows low cost and high efficiency performance.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC09-08SR22470
- Assignee:
- Savannah River Nuclear Solutions, LLC (Aiken, SC)
- Patent Number(s):
- 10,443,954
- Application Number:
- 14/961,087
- OSTI ID:
- 1600154
- Country of Publication:
- United States
- Language:
- English
Hydriding characteristics of NaMgH 2 F with preliminary technical and cost evaluation of magnesium-based metal hydride materials for concentrating solar power thermal storage
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journal | January 2014 |
Metastable Metal Hydrides for Hydrogen Storage
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journal | December 2012 |
Screening analysis of metal hydride based thermal energy storage systems for concentrating solar power plants
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journal | October 2014 |
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