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Simulation and design of a three-stage metal hydride hydrogen compressor based on experimental thermodynamic data

Author
Galvis E., A.R.; Leardini, F.; Ares Fernández, José Ramónuntranslated; Cuevas, F.; Fernández Ríos, José Fco.untranslated
Entity
UAM. Departamento de Física de Materiales
Publisher
Elsevier
Date
2018-03-06
Citation
International Journal of Hydrogen Energy 43.13 (2018): 6666-6676
 
 
 
ISSN
0360-3199 (print)
Editor's Version
https://doi.org/10.1016/j.ijhydene.2018.02.052
Subjects
AB2 Intermetallic Hydrides; Hydride Compressor; Thermodynamics; Semi-Empirical Modeling; Física
URI
http://hdl.handle.net/10486/705902
Note
Los investigadores de la UAM pertenecen al MIRE-Group
Rights
© 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd.

Licencia de Creative Commons
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.

Abstract

A semi-empirical method was developed to design a three stage Metal Hydride Hydrogen Compressor (MHHC) through the determination of thermodynamic properties of several hydrides. As a first step, three AB2-type alloys that satisfy operation conditions were selected from published thermodynamic data entailing over 200 single plateau hydrides. These alloys were synthetized by arc melting and characterized by X-Ray Powder Diffraction (XRPD), Scanning Electron Microscopy (SEM) and Energy Dispersion X-ray spectroscopy (EDX). Absorption and desorption Pressure-composition-Isotherms (P-c-I) were determined between 23 and 80 C to characterize their thermodynamic properties. Subsequently, an algorithm that uses these experimental data and a real equation of state for gaseous H2 was implemented to simulate the volume, alloy mass, pressure and temperature of operation for each compressor stage, while optimizing the compression ratio and total number of compressed H2 moles. Optimal desorption temperatures for the three stages were identified within the range of 110e132 C. A system compression ratio (CR) of 92 was achieved. The number of H2 moles compressed, the alloy mass and volume of each stage depend linearly on the volume of the external tank in which the hydrogen is delivered
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Google™ Scholar:Galvis E., A.R. - Leardini, F. - Ares Fernández, José Ramón - Cuevas, F. - Fernández Ríos, José Fco.

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  • Producción científica en acceso abierto de la UAM [16522]

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All the documents from Biblos-e Archivo are protected by copyrights. Some rights reserved.
Universidad Autónoma de Madrid. Biblioteca
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