Validation of Divertor Cassette locking system with a hydraulic jack tool

V. Takalo (Corresponding Author), S. Esque, J. Mattila, M. Vilenius, Jorma Järvenpää, Mikko Siuko, L. Semeraro, M. Irving, C. Damiani

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

The divertor area of ITER vacuum vessel consists of 54 modular cassettes which must be exchanged after every 3–4 years of plasma operations. Divertor Cassettes are locked in the vacuum vessel by means of compressing them against the rails mounted in the inner and outer walls of the vacuum vessel. According to ITER reference cassette locking system, a Divertor Cassette has to be preloaded with a compression force of 360 kN against the vacuum vessel rails. The preloading of the cassettes is carried out with a hydraulic jack tool which is fitted into the cassette body. The Jack will transmit a hydraulic force by pushing the cassette latches against the outer rails, transmitting therefore the required preloading compression force to the cassette. This paper deals with the validation of Divertor Cassette locking system and it also describes the design and testing of a radiation-hard, water hydraulic jack. The validation of Divertor Cassette locking system has been the first Divertor Maintenance operation tested at Divertor Test Platform 2.
Original languageEnglish
Pages (from-to)1808-1812
Number of pages5
JournalFusion Engineering and Design
Volume84
Issue number7-11
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed
Event25th Symposium on Fusion Technology, SOFT-25 - Rostock, Germany
Duration: 15 Sep 200819 Sep 2008

Fingerprint

Hydraulic tools
Vacuum
Rails
Jacks
Hydraulics
Plasmas
Radiation
Testing
Water

Keywords

  • Divertor Cassette
  • Remote handling
  • Water hydraulic jack

Cite this

Takalo, V., Esque, S., Mattila, J., Vilenius, M., Järvenpää, J., Siuko, M., ... Damiani, C. (2009). Validation of Divertor Cassette locking system with a hydraulic jack tool. Fusion Engineering and Design, 84(7-11), 1808-1812. https://doi.org/10.1016/j.fusengdes.2008.11.039
Takalo, V. ; Esque, S. ; Mattila, J. ; Vilenius, M. ; Järvenpää, Jorma ; Siuko, Mikko ; Semeraro, L. ; Irving, M. ; Damiani, C. / Validation of Divertor Cassette locking system with a hydraulic jack tool. In: Fusion Engineering and Design. 2009 ; Vol. 84, No. 7-11. pp. 1808-1812.
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abstract = "The divertor area of ITER vacuum vessel consists of 54 modular cassettes which must be exchanged after every 3–4 years of plasma operations. Divertor Cassettes are locked in the vacuum vessel by means of compressing them against the rails mounted in the inner and outer walls of the vacuum vessel. According to ITER reference cassette locking system, a Divertor Cassette has to be preloaded with a compression force of 360 kN against the vacuum vessel rails. The preloading of the cassettes is carried out with a hydraulic jack tool which is fitted into the cassette body. The Jack will transmit a hydraulic force by pushing the cassette latches against the outer rails, transmitting therefore the required preloading compression force to the cassette. This paper deals with the validation of Divertor Cassette locking system and it also describes the design and testing of a radiation-hard, water hydraulic jack. The validation of Divertor Cassette locking system has been the first Divertor Maintenance operation tested at Divertor Test Platform 2.",
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Takalo, V, Esque, S, Mattila, J, Vilenius, M, Järvenpää, J, Siuko, M, Semeraro, L, Irving, M & Damiani, C 2009, 'Validation of Divertor Cassette locking system with a hydraulic jack tool', Fusion Engineering and Design, vol. 84, no. 7-11, pp. 1808-1812. https://doi.org/10.1016/j.fusengdes.2008.11.039

Validation of Divertor Cassette locking system with a hydraulic jack tool. / Takalo, V. (Corresponding Author); Esque, S.; Mattila, J.; Vilenius, M.; Järvenpää, Jorma; Siuko, Mikko; Semeraro, L.; Irving, M.; Damiani, C.

In: Fusion Engineering and Design, Vol. 84, No. 7-11, 2009, p. 1808-1812.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Takalo, V.

AU - Esque, S.

AU - Mattila, J.

AU - Vilenius, M.

AU - Järvenpää, Jorma

AU - Siuko, Mikko

AU - Semeraro, L.

AU - Irving, M.

AU - Damiani, C.

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AB - The divertor area of ITER vacuum vessel consists of 54 modular cassettes which must be exchanged after every 3–4 years of plasma operations. Divertor Cassettes are locked in the vacuum vessel by means of compressing them against the rails mounted in the inner and outer walls of the vacuum vessel. According to ITER reference cassette locking system, a Divertor Cassette has to be preloaded with a compression force of 360 kN against the vacuum vessel rails. The preloading of the cassettes is carried out with a hydraulic jack tool which is fitted into the cassette body. The Jack will transmit a hydraulic force by pushing the cassette latches against the outer rails, transmitting therefore the required preloading compression force to the cassette. This paper deals with the validation of Divertor Cassette locking system and it also describes the design and testing of a radiation-hard, water hydraulic jack. The validation of Divertor Cassette locking system has been the first Divertor Maintenance operation tested at Divertor Test Platform 2.

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