Performance study of an anti-sloshing floating device for membrane-type LNG tanks

M. Arai, R. Suzuki, T. Ando, N. Kishimoto

  • 1 Citations

Abstract

The development of offshore terminals and Floating Liquefied Natural Gas (FLNG) applications have raised a new requirement of being able to handle unrestricted filling of LNG in their storage tanks. If membrane-type tanks are used in such new systems, the occurrence of sloshing in the half-load condition becomes an important design issue. In this paper, we propose a simple anti-sloshing floating device to be installed inside liquid cargo tanks. By setting the device on the free surface of the liquid cargo, the original free surface is divided into two or more sub-surfaces, and resonant sloshing of the liquid can be avoided by changing the natural frequency of its motion. This floating device can follow the liquid height change in the tank during loading and unloading operations of the liquid cargo, a feature that is especially preferable in FLNG applications. We examine the performance of the proposed anti-sloshing device through a series of model experiments and numerical simulations, which indicate that the device's performance is very promising. © 2014 Taylor & Francis Group, London.

Original languageEnglish
Title of host publicationDevelopments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean
Pages171-181
Number of pages11
Volume1
StatePublished - 2014 Feb 28
Event15th International Congress of the International Maritime Association of the Mediterranean, IMAM 2013 - A Coruna, Spain

Other

Other15th International Congress of the International Maritime Association of the Mediterranean, IMAM 2013
CountrySpain
CityA Coruna
Period13/10/1413/10/17

Fingerprint

Liquid sloshing
Liquids
Tanks (containers)
Liquefied natural gas
Membranes
Floating liquefied natural gas
Unloading
Natural frequencies
Computer simulation
Experiments

ASJC Scopus subject areas

  • Ocean Engineering
  • Transportation

Cite this

Arai, M., Suzuki, R., Ando, T., & Kishimoto, N. (2014). Performance study of an anti-sloshing floating device for membrane-type LNG tanks. In Developments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean. (Vol. 1, pp. 171-181)

Performance study of an anti-sloshing floating device for membrane-type LNG tanks. / Arai, M.; Suzuki, R.; Ando, T.; Kishimoto, N.

Developments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean. Vol. 1 2014. p. 171-181.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Arai, M, Suzuki, R, Ando, T & Kishimoto, N 2014, Performance study of an anti-sloshing floating device for membrane-type LNG tanks. in Developments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean. vol. 1, pp. 171-181, 15th International Congress of the International Maritime Association of the Mediterranean, IMAM 2013, A Coruna, Spain, 14-17 October.
Arai M, Suzuki R, Ando T, Kishimoto N. Performance study of an anti-sloshing floating device for membrane-type LNG tanks. In Developments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean. Vol. 1. 2014. p. 171-181.

Arai, M.; Suzuki, R.; Ando, T.; Kishimoto, N. / Performance study of an anti-sloshing floating device for membrane-type LNG tanks.

Developments in Maritime Transportation and Exploitation of Sea Resources - Proceedings of IMAM 2013, 15th International Congress of the International Maritime Association of the Mediterranean. Vol. 1 2014. p. 171-181.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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