27 August 2017 to 1 September 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Thermo-hydraulic analysis of The KSTAR PF cryogenic loop using SUPERMAGNET CODE

31 Aug 2017, 13:45
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m B1 - Superconducting Magnets for Fusion Thu-Af-Po4.02

Speaker

HyunJung Lee (National Fusion Research Institute)

Description

Operation stability study for a large-scale superconducting magnet is of particular importance to protect the magnet from permanent damage. Especially, for a fusion magnet, severe heat load by AC loss needs to be effectively removed during operation to achieve required temperature margin. A unique feature of KSTAR PF (poloidal field) magnet is that all the liquid cryogen inlets and outlets of PF1~4UL (PF upper and lower) coils are located at high field region. Therefore, major heat loads are localized both at the inlets and outlets, so that a drastically reduced or even no temporal cryogen flow is frequently observed at the inlets of PF1~4UL coils. This kind of temporal blockage of cryogenic loop can seriously affect the thermos-hydraulic analysis of a superconducting magnet system. As a preliminary study on this issue, we discussed thermos-hydraulic analysis results of the KSTAR PF cryogenic loop by using the SUPERMAGNET code. The numerical simulations were also compared to empirical results.

Submitters Country Korea republic of

Primary author

HyunJung Lee (National Fusion Research Institute)

Co-authors

Sangjun Oh (NFRI) Dr Jung Laurent (National Fusion Research Institute) Dong Keun Oh (NFRI)

Presentation Materials

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