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Title: Wall pressure exerted by hydrogenation of sodium aluminum hydride.

Abstract

Wall pressure exerted by the bulk expansion of a sodium aluminum hydride bed was measured as a function of hydrogen content. A custom apparatus was designed and loaded with sodium alanates at densities of 1.0, 1.1, and 1.16 g/cc. Four complete cycles were performed to identify variations in measured pressure. Results indicated poor correlation between exerted pressure and hydrogen capacity of the sodium alanate beds. Mechanical pressure due to the hydrogenation of sodium alanates does not influence full-scale system designs as it falls within common design factors of safety. Gas pressure gradients within the porous solid were identified and may limit reaction rates, especially for high aspect ratio beds.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
959082
Report Number(s):
SAND2009-3812
TRN: US201016%%550
DOE Contract Number:
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; ASPECT RATIO; CAPACITY; DESIGN; HYDROGEN; HYDROGENATION; PRESSURE GRADIENTS; REACTION KINETICS; SAFETY; SODIUM; ALUMINIUM HYDRIDES; Intermetallic compounds-Hydrogen content.; Hydrogen.; Hydrogenation.

Citation Formats

Perras, Yon E., Dedrick, Daniel E., and Zimmerman, Mark D. Wall pressure exerted by hydrogenation of sodium aluminum hydride.. United States: N. p., 2009. Web. doi:10.2172/959082.
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Perras, Yon E., Dedrick, Daniel E., & Zimmerman, Mark D. Wall pressure exerted by hydrogenation of sodium aluminum hydride.. United States. doi:10.2172/959082.
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Perras, Yon E., Dedrick, Daniel E., and Zimmerman, Mark D. Mon . "Wall pressure exerted by hydrogenation of sodium aluminum hydride.". United States. doi:10.2172/959082. https://www.osti.gov/servlets/purl/959082.
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@article{osti_959082,
title = {Wall pressure exerted by hydrogenation of sodium aluminum hydride.},
author = {Perras, Yon E. and Dedrick, Daniel E. and Zimmerman, Mark D.},
abstractNote = {Wall pressure exerted by the bulk expansion of a sodium aluminum hydride bed was measured as a function of hydrogen content. A custom apparatus was designed and loaded with sodium alanates at densities of 1.0, 1.1, and 1.16 g/cc. Four complete cycles were performed to identify variations in measured pressure. Results indicated poor correlation between exerted pressure and hydrogen capacity of the sodium alanate beds. Mechanical pressure due to the hydrogenation of sodium alanates does not influence full-scale system designs as it falls within common design factors of safety. Gas pressure gradients within the porous solid were identified and may limit reaction rates, especially for high aspect ratio beds.},
doi = {10.2172/959082},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 01 00:00:00 EDT 2009},
month = {Mon Jun 01 00:00:00 EDT 2009}
}
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Technical Report:
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DOI:  10.2172/959082
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