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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)164-178
Number of pages15
JournalRenewable Energy
Volume147
Early online date22 Aug 2019
DOIs
Publication statusE-pub ahead of print - 22 Aug 2019

Fingerprint

Hydrides
Hydrogen
Metals
Compressors
Thermal energy
Numerical analysis
Numerical models
Availability
Temperature
Computer simulation
Costs

Keywords

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

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Numerical Investigation on the Operation and Energy Demand of a Seven-Stage Metal Hydride Hydrogen Compression System for Hydrogen Refuelling Stations. / Gkanas, Evangelos; Christodoulou, Christodoulos; Tzamalis, George; Stamatakis, Emmanuel; Chroneos, Alexander; Deligiannis, Konstantinos ; Karagiorgis, George; Stubos, A. K.

In: Renewable Energy, Vol. 147, 01.03.2020, p. 164-178.

Research output: Contribution to journalArticle

Gkanas, Evangelos ; Christodoulou, Christodoulos ; Tzamalis, George ; Stamatakis, Emmanuel ; Chroneos, Alexander ; Deligiannis, Konstantinos ; Karagiorgis, George ; Stubos, A. K. / Numerical Investigation on the Operation and Energy Demand of a Seven-Stage Metal Hydride Hydrogen Compression System for Hydrogen Refuelling Stations. In: Renewable Energy. 2020 ; Vol. 147. pp. 164-178.
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