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Techno-economic assessment of physical-based hydrogen storage technologies: An efficient refrigeration management. 

Number: 2645

Author(s) : TESSEMA T. D., CORONAS A., BRUNO J. C.

Summary

The physical-based storage of hydrogen as a compressed gas or as a liquid has many advantages over material-based methods that may require advanced storage materials, and different charge/discharge rates. However, its high energy demand is an important issue that needs to be addressed. The aim of this work was to evaluate the techno-economic performance indices in terms of energy density and SEC of CCH2 over conventional LH2 and CGH2 storage under convenient state conditions. The results reveals that under CCH2 storage conditions, a higher hydrogen density of≈ 90 kg/m3 was obtained at 53 K and 700 bar, with an SEC value of 39 kWh/kg. For LH2 ≈ 71kg/m3 at 3 bar and 20 K with a SEC of 45 kWh/kg and CGH2 ≈ 40.5 kg/m3 at 700 bar and 300 K with a SEC of 35.5 kWh/kg. The hydrogen storage density could be doubled from 40 kg/m3 at 700 bar and 300 K using CGH2 to 80 kg/m3 at ≈ 38 K using CCH2, but with only 300 bar. Hence, these optimal points could be viable options for the demand of different applications, such as hydrogen-refueling stations, and for long transport with a certain tradeoff between SEC and energy density.

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Pages: 6 p.

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Details

  • Original title: Techno-economic assessment of physical-based hydrogen storage technologies: An efficient refrigeration management. 
  • Record ID : 30033418
  • Languages: English
  • Subject: Figures, economy, Technology
  • Source: 12th CYTEF Congress - Ibero-American Congress of Refrigeration Science and Technology.
  • Publication date: 2024/06/26
  • DOI: http://dx.doi.org/10.21134/0jxb3a16

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