A compressed hydrogen gas storage system with an integrated phase change material

Andrea Mazzucco, Erasmus Damgaard Rothuizen, Jens Erik Jørgensen, T. R. Jensen, Masoud Rokni

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A dynamic fueling model is built to simulate the fueling process of a hydrogen tank with an integrated passive cooling system. The study investigates the possibility of absorbing a part of the heat of compression in the high latent-heat material during melting, with the aim of keeping the walls below the critical temperature of 85 °C, while filling the hydrogen at ambient temperature. Results show that a 10-mm-thick layer of paraffin wax can absorb enough heat to reduce the adiabatic temperature by 20 K when compared to a standard Type IV tank. The heat transfer from the gas to the phase change material, mainly occurs after the fueling is completed, resulting in a higher hydrogen peak temperature inside the tank and a lower fuelled mass than a gas-cooled system. Such a mass reduction accounts for 12% with respect to the case of a standard tank system fuelled at -40 °C.
Original languageEnglish
Title of host publicationProceedings of The 10th International Green Energy Conference
Number of pages4
Publication date2015
Article numberIGEC-2015-1458
Publication statusPublished - 2015
Event10th Annual Green Energy Conference - Taichung, Taiwan, Province of China
Duration: 24 May 201527 May 2015
Conference number: 10


Conference10th Annual Green Energy Conference
CountryTaiwan, Province of China


  • Phase change material
  • Hydrogen storage
  • Hydrogen fueling
  • Dynamic model
  • Heat transfer

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