DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High performance metal hydride based thermal energy storage systems for concentrating solar power

Abstract

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.

Inventors:
Issue Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600154
Patent Number(s):
10443954
Application Number:
14/961,087
Assignee:
Savannah River Nuclear Solutions, LLC (Aiken, SC)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
DOE Contract Number:  
AC09-08SR22470
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/07/2015
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Zidan, Ragaiy. High performance metal hydride based thermal energy storage systems for concentrating solar power. United States: N. p., 2019. Web.
Zidan, Ragaiy. High performance metal hydride based thermal energy storage systems for concentrating solar power. United States.
Zidan, Ragaiy. Tue . "High performance metal hydride based thermal energy storage systems for concentrating solar power". United States. https://www.osti.gov/servlets/purl/1600154.
@article{osti_1600154,
title = {High performance metal hydride based thermal energy storage systems for concentrating solar power},
author = {Zidan, Ragaiy},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

Works referenced in this record:

Metastable Metal Hydrides for Hydrogen Storage
journal, December 2012


Reversible metal hydride thermal energy storage systems, devices, and process for high temperature applications
patent-application, August 2014


Reversible Hydrogen Storage Systems
patent-application, November 2007


Screening analysis of metal hydride based thermal energy storage systems for concentrating solar power plants
journal, October 2014


Methods for reversibly storing hydrogen
patent, December 2008


Reversible Hydride Thermal Energy Storage Cell Optimized for Solar Applications
patent-application, May 2011


Light Metal Solid Solution Alloys for Hydrogen Storage
patent-application, April 2011


Modified magnesium based hydrogen storage alloys
patent, December 2001