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Title: Apparatus and methods for storing and releasing hydrogen

Abstract

A rechargeable device that stores and discharges hydrogen is described. The device stores hydrogen in a solid form and supplies hydrogen as a gas when needed. The solid storage medium may be metal hydride in a ground particle form that avoids the need for compaction or other treatment. Dividers partition a container into separate chambers, each provided with a matrix, formed from an appropriate material like a thermally-conductive aluminum foam, which forms a number of cells. For proper chamber size, the ratio of chamber length to container diameter should be between about 0.5 and 2. Metal hydride particles (or other hydrogen storage medium) may be placed within the cells, which help prevent excessive particle settling. The container is provided with a hydrogen transfer port through which hydrogen gas passes upon either discharging from or charging of the metal hydride particles. A filter may be placed within the port to allow hydrogen to flow but prevent particles from escaping. A heat transferring surface is formed by, for instance, a channel that is thermally coupled with the aluminum foam. Fluid flows through the channel to deliver or remove heat during the respective hydrogen discharging or charging processes.

Inventors:
 [1]
  1. (Aiken, SC)
Issue Date:
Research Org.:
WESTINGHOUSE SAVANNAH RIVER CO
OSTI Identifier:
873889
Patent Number(s):
6267229
Assignee:
Westinghouse Savannah River Company (Aiken, SC) SRS
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; methods; storing; releasing; hydrogen; rechargeable; device; stores; discharges; described; solid; form; supplies; gas; storage; medium; metal; hydride; ground; particle; avoids; compaction; treatment; dividers; partition; container; separate; chambers; provided; matrix; formed; appropriate; material; thermally-conductive; aluminum; foam; forms; cells; proper; chamber; size; ratio; length; diameter; particles; placed; help; prevent; excessive; settling; transfer; passes; discharging; charging; filter; allow; flow; escaping; heat; transferring; surface; instance; channel; thermally; coupled; fluid; flows; deliver; remove; respective; processes; releasing hydrogen; separate chambers; gas passes; particle form; prevent excessive; remove heat; solid form; hydrogen gas; heat transfer; fluid flow; metal hydride; hydrogen storage; storage medium; fluid flows; hydride particles; thermally coupled; heat transferring; help prevent; prevent particles; stores hydrogen; solid storage; rechargeable device; supplies hydrogen; hydrogen transfer; ground particle; prevent particle; prevent excess; appropriate material; device stores; discharges hydrogen; /206/

Citation Formats

Heung, Leung K. Apparatus and methods for storing and releasing hydrogen. United States: N. p., 2001. Web.
Heung, Leung K. Apparatus and methods for storing and releasing hydrogen. United States.
Heung, Leung K. Mon . "Apparatus and methods for storing and releasing hydrogen". United States. https://www.osti.gov/servlets/purl/873889.
@article{osti_873889,
title = {Apparatus and methods for storing and releasing hydrogen},
author = {Heung, Leung K.},
abstractNote = {A rechargeable device that stores and discharges hydrogen is described. The device stores hydrogen in a solid form and supplies hydrogen as a gas when needed. The solid storage medium may be metal hydride in a ground particle form that avoids the need for compaction or other treatment. Dividers partition a container into separate chambers, each provided with a matrix, formed from an appropriate material like a thermally-conductive aluminum foam, which forms a number of cells. For proper chamber size, the ratio of chamber length to container diameter should be between about 0.5 and 2. Metal hydride particles (or other hydrogen storage medium) may be placed within the cells, which help prevent excessive particle settling. The container is provided with a hydrogen transfer port through which hydrogen gas passes upon either discharging from or charging of the metal hydride particles. A filter may be placed within the port to allow hydrogen to flow but prevent particles from escaping. A heat transferring surface is formed by, for instance, a channel that is thermally coupled with the aluminum foam. Fluid flows through the channel to deliver or remove heat during the respective hydrogen discharging or charging processes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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