Numerical Investigation on the Operation and Energy Demand of a Seven-Stage Metal Hydride Hydrogen Compression System for Hydrogen Refuelling Stations

Evangelos Gkanas; Christodoulos Christodoulou; George Tzamalis; Emmanuel Stamatakis; Alexander Chroneos; Konstantinos  Deligiannis; George Karagiorgis; A. K. Stubos

doi:10.1016/j.renene.2019.08.104

Numerical Investigation on the Operation and Energy Demand of a Seven-Stage Metal Hydride Hydrogen Compression System for Hydrogen Refuelling Stations

Evangelos Gkanas, Christodoulos Christodoulou, George Tzamalis, Emmanuel Stamatakis, Alexander Chroneos, Konstantinos Deligiannis, George Karagiorgis, A. K. Stubos

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Abstract

In the present work, a numerical analysis on the performance of a seven-stage metal hydride hydrogen compression (MHHC) system is introduced, presented and discussed. The operation efficiency and cost along with the reliability of hydrogen compression is of great importance for the future commercial availability of Hydrogen Refuelling Stations (HRS); thus, significant improvements in hydrogen compression must be achieved and novel methods and approaches are being investigated in that respect. MHHC’s offer distinct advantages over conventional mechanical compressors and the present paper aims at contributing to the efficient design and upscaling of such devices via advanced numerical simulations of a seven-stage MHHC. The numerical model was supported by and validated with solid experimental data. Furthermore, several different operational temperature ranges for the compressor were examined and the importance of the proper operation conditions is discussed in terms of temperature evolution, pressure profile, cycle duration, compression ratio, thermal energy demand and efficiency.

Original language	English
Pages (from-to)	164-178
Number of pages	15
Journal	Renewable Energy
Volume	147
Early online date	22 Aug 2019
DOIs	https://doi.org/10.1016/j.renene.2019.08.104
Publication status	Published - 1 Mar 2020

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Renewable Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Renewable Energy, 147, (2020) DOI: 10.1016/j.renene.2019.08.104

© 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Hydrogen storage
Metal hydride hydrogen compressor
Metal hydrides
Multi-stage compression
Numerical analysis

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.renene.2019.08.104

Post-PrintAccepted author manuscript, 1.51 MBLicence: CC BY-NC-ND

Cite this

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title = "Numerical Investigation on the Operation and Energy Demand of a Seven-Stage Metal Hydride Hydrogen Compression System for Hydrogen Refuelling Stations",

abstract = "In the present work, a numerical analysis on the performance of a seven-stage metal hydride hydrogen compression (MHHC) system is introduced, presented and discussed. The operation efficiency and cost along with the reliability of hydrogen compression is of great importance for the future commercial availability of Hydrogen Refuelling Stations (HRS); thus, significant improvements in hydrogen compression must be achieved and novel methods and approaches are being investigated in that respect. MHHC{\textquoteright}s offer distinct advantages over conventional mechanical compressors and the present paper aims at contributing to the efficient design and upscaling of such devices via advanced numerical simulations of a seven-stage MHHC. The numerical model was supported by and validated with solid experimental data. Furthermore, several different operational temperature ranges for the compressor were examined and the importance of the proper operation conditions is discussed in terms of temperature evolution, pressure profile, cycle duration, compression ratio, thermal energy demand and efficiency. ",

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Numerical Investigation on the Operation and Energy Demand of a Seven-Stage Metal Hydride Hydrogen Compression System for Hydrogen Refuelling Stations

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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