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Document IIF

Poursuite des recherches sur la liquéfaction de l’hélium et de l’hydrogène.

Further research in helium and hydrogen liquefaction.

Numéro : 0068

Auteurs : STAICOVICI M. D.

Résumé

Work proposes H2-SCC-CBS-RB&JT and He-SCC-CBS-RB&JT cycles for H2 and He, etc. liquefaction. It couple synergic Reverse-Bryton (RB) and Joule-Thomson (J-T) cycles, operated by He and gas to liquefy and boosted by Coabsorbent (CBS) technology. CBS uses truncated cascades heated by free condensing Steam Rankine Cycle (SRC) plants to produce effective Ultra-Low Temperature Refrigeration (ULTR). ULTR achieves gas precooling prior multi-stage compression and the Thermal-to-Work Recovery Compression (TWRC). TWRC, provided with Rankine Recovery Cycles and Sub-sink Compression Cooling, applies in compression inter-stage. Improvements are: i) permanent CBS-ULTR supply by SRC link; ii) re-designing. Model results are: i) He and H2 specific liquefaction work decreases up to (1.25-0.6) kWh/kg and (1.05-0.5) kWh/kg using H2- and He-SCC-CBS-RB & J-T plants, at 𝑇𝑎𝑚𝑏𝑖𝑒𝑛𝑡=300 𝐾; ii) RB He-H2 heat exchange works well; iii) reduced liquefaction work of He and H2 cryogenic fluids may help reconsider achievement of low-critical temperature and cheaper electrical superconductors materials, e.g. Nb, 𝑇𝑐,𝑁𝑏=8,31 𝐾, and Nb3Ge, 𝑇𝑐,𝑁𝑏3𝐺𝑒=23,2 𝐾.

Documents disponibles

Format PDF

Pages : 11 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Further research in helium and hydrogen liquefaction.
  • Identifiant de la fiche : 30031545
  • Langues : Anglais
  • Sujet : Technologie
  • Source : Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Date d'édition : 21/08/2023
  • DOI : http://dx.doi.org/10.18462/iir.icr.2023.0068

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