Thermodynamic analysis of a novel dual-cycle cryo-compressed hydrogen storage process.

FANG L.; WANG H.; DONG X.; WANG Y.; GONG M.

doi:https://doi.org/10.1016/j.ijrefrig.2026.107051

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Thermodynamic analysis of a novel dual-cycle cryo-compressed hydrogen storage process.

Auteurs : FANG L., WANG H., DONG X., WANG Y., GONG M.

Type d'article : Article de la RIF

Résumé

Cryo-compressed hydrogen storage technology offers high volumetric density and relatively low energy consumption, making it a promising solution for hydrogen storage and transportation. Direct cooling of highpressure gaseous hydrogen provides a lower intrinsic energy demand. Nevertheless, time-dependent compression heat during charging is not properly addressed, causing a 30-40 K temperature rise and a consequent reduction in the achievable hydrogen storage density. A dual-cycle cooling-filling process is proposed that combines a mixed-refrigerant Joule-Thomson cycle with a closed nitrogen cycle. The closed nitrogen cycle enables
thermal load decoupling: gaseous nitrogen matches distributed sensible heat, while liquid nitrogen removes compression heat under near-isothermal conditions. Cold energy storage further allows dynamic adaptation to compression heat loads. Thermodynamic simulation shows that at 50 MPa and 85 K, the proposed system achieves a specific power consumption of 6.74 kWh/kg, approximately 39% lower than that of the conventional LH₂ pressurisation-vaporisation method for CcH₂ production.

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Détails

Titre original : Thermodynamic analysis of a novel dual-cycle cryo-compressed hydrogen storage process.
Identifiant de la fiche : 30035317
Langues : Anglais
Sujet : Technologie
Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 190
Date d'édition : 10/2026
DOI : http://dx.doi.org/https://doi.org/10.1016/j.ijrefrig.2026.107051

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Indexation

Thèmes : Cryologie, traitement des gaz : généralités;
Liquéfaction et séparation des gaz
Mots-clés : Hydrogène; Stockage; Compression; Joule-Thomson; Azote