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Numerical analysis of candidate materials for multi-stage metal hydride hydrogen compression processes

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  • Gkanas, Evangelos I.
  • Khzouz, Martin

Abstract

A numerical study on multistage metal hydride hydrogen compression (MHHC) systems is presented and analyzed. Multistage MHHC systems use a combination of different materials to increase the final compression ratio at the end of the compression process. In the current work a numerical model is proposed to describe the operation of a complete three-stage MHHC cycle, which can be divided in seven steps (for a three-stage compression system): first stage hydrogenation process, sensible heating of first stage, coupling process between the first and the second stage, sensible heating of the second stage, second coupling with the upcoming sensible heating of the third stage material and finally the delivery of high pressure hydrogen to a high pressure hydrogen tank. Three scenarios concerning the combination of different materials for the compression stages are introduced and analyzed in terms of maximum compression ratio, cycle time and energy consumption. According to the results, the combination of LaNi5 (stage 1), MmNi4.6Al0.4 (stage 2) and a novel synthesized AB2-Laves phase intermetallic (stage 3) present a compression ratio 22:1 while operating between 20 and 130 °C.

Suggested Citation

  • Gkanas, Evangelos I. & Khzouz, Martin, 2017. "Numerical analysis of candidate materials for multi-stage metal hydride hydrogen compression processes," Renewable Energy, Elsevier, vol. 111(C), pages 484-493.
    • Handle: RePEc:eee:renene:v:111:y:2017:i:c:p:484-493
    DOI: 10.1016/j.renene.2017.04.037
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    Cited by:

    1. Gkanas, Evangelos I. & Khzouz, Martin & Panagakos, Grigorios & Statheros, Thomas & Mihalakakou, Giouli & Siasos, Gerasimos I. & Skodras, Georgios & Makridis, Sofoklis S., 2018. "Hydrogenation behavior in rectangular metal hydride tanks under effective heat management processes for green building applications," Energy, Elsevier, vol. 142(C), pages 518-530.
    2. Genovese, Matteo & Fragiacomo, Petronilla, 2021. "Parametric technical-economic investigation of a pressurized hydrogen electrolyzer unit coupled with a storage compression system," Renewable Energy, Elsevier, vol. 180(C), pages 502-515.
    3. Lin, Xi & Zhu, Qi & Leng, Haiyan & Yang, Hongguang & Lyu, Tao & Li, Qian, 2019. "Numerical analysis of the effects of particle radius and porosity on hydrogen absorption performances in metal hydride tank," Applied Energy, Elsevier, vol. 250(C), pages 1065-1072.
    4. Stamatakis, Emmanuel & Zoulias, Emmanuel & Tzamalis, George & Massina, Zoe & Analytis, Vassilis & Christodoulou, Christodoulos & Stubos, Athanasios, 2018. "Metal hydride hydrogen compressors: Current developments & early markets," Renewable Energy, Elsevier, vol. 127(C), pages 850-862.
    5. Gkanas, Evangelos I. & Christodoulou, Christodoulos N. & Tzamalis, George & Stamatakis, Emmanuel & Chroneos, Alexander & Deligiannis, Konstantinos & Karagiorgis, George & Stubos, Athanasios K., 2020. "Numerical investigation on the operation and energy demand of a seven-stage metal hydride hydrogen compression system for Hydrogen Refuelling Stations," Renewable Energy, Elsevier, vol. 147(P1), pages 164-178.
    6. Wang, Ke & Chen, Wei & Li, Lu, 2022. "Multi-field coupled modeling of metal hydride hydrogen storage: A resistance atlas for H2 absorption reaction and heat-mass transport," Renewable Energy, Elsevier, vol. 187(C), pages 1118-1129.

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