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Performance evaluation of a magnetocaloric cooling system for boil-off gas re-liquefaction.

Number: 0443

Author(s) : SHIMA R., KAWANAMI T., NAKASU T., FUJIWARA Y., MURO Y.

Summary

Gas generated by heat intrusion into a storage tank of liquefied natural gas (LNG) and liquefied hydrogen (LH2) is called boil-off gas (BOG). BOG can be treated by using BOG reliquefaction technology. Conventionally, cryogenic refrigerators, such as the Gifford-McMahon (GM) refrigerator, have been used for BOG reliquefaction. The magnetic refrigeration technique applied in this study is a refrigeration system using a heat pump cycle called an active magnetic regenerator (AMR) (Barclay et al., 1981). It has a higher theoretical efficiency than those of conventional cryogenic refrigeration systems and has the potential to reduce the energy input for reliquefaction. In this study, a BOG liquefaction system is constructed using a magnetic refrigeration technique, and its performance is investigated. Consequently, the influence of various conditions on the performance of the liquefaction system is clarified.

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Details

  • Original title: Performance evaluation of a magnetocaloric cooling system for boil-off gas re-liquefaction.
  • Record ID : 30031415
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0443

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