Structural design and analysis for the KSTAR cryostat

Her, N.I.; Cho, S.; Sa, J.W.; Im, K.H.; Hong, G.H.; Kim, G.H.; Park, J.Y.; Kim, H.K.; Kim, B.C.; Yu, In-Keun; Kim, D.L.; Kim, W.C.; Oh, Y.K.; Choi, Changho; Bak, J.S.; Kwon, M.; Lee, G.S.; Kim, J.H.; Ahn, Hyun-Joo

doi:10.1109/fusion.2002.1027721

Cited by 2 publications

(1 citation statement)

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“…There are seven major types of port penetrations, including 12 top vertical (TV), 6 neutral beam injection (NBI), 3 radio frequency (RF), 7 elongated horizontal (EH), 12 bottom vertical (BV), 16 slanted port (SP), and 16 baking and cooling port (BC) as shown in Table I [3][4]. The NBI, RF, and EH are large penetrations in the cylinder section for plasma heating, diagnostics, and VV vacuum pumping.…”

Section: Introductionmentioning

confidence: 99%

Development of the Welded Bellows for the KSTAR Vacuum Vessel

Her

Kim

Bak

et al. 2005

21st IEEE/NPS Symposium on Fusion Engineering SOFE 05

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The vacuum vessel of the KSTAR (Korea Superconducting Tokamak Advanced Research) tokamak has 72 ports for diagnostics, plasma heating, vacuum pumping, baking, and cooling. And the design and fabrication of the bellows at each port need special care in order to compensate relative displacement between the vacuum vessel and the cryostat. S-type welded bellows were designed based on the port shape, the maximum displacement, and the life cycle. Fatigue strength evaluation using Minor's rule was performed. Rectangularshaped prototype bellows with outer dimension of 1370 mm x 1610 mm was fabricated and tested. We confirmed that the bellows had sufficient fatigue strength and vacuum reliability. VALQUA fabricated the bellows including one prototype bellows and 72 main bellows. The fabricated bellows were assembled with the vacuum vessel ports. The assembled port devices are going to be welded on the vacuum vessel body in accordance with the KSTAR tokamak assembly scenario.

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Section: Introductionmentioning

confidence: 99%