NDLI: Construction and Commissioning of the KSTAR Helium Distribution System

Content Provider	IEEE Xplore Digital Library
Author	Lee, Y.J. Park, Y.M. Kim, Y.S. Jang, H.S. Kwag, S.W. Chang, Y.B. Park, H.T. Woo, I.S. Song, N.H. Bang, E.N. Ha, T.H. Baek, S. Kim, M.K. Kim, W.C. Oh, Y.K. Bak, J.S.
Copyright Year	2002
Abstract	The KSTAR components requiring cryogenic helium coolant for superconducting magnet operations are connected to the helium refrigeration system (HRS) through the helium distribution system (HDS), the final helium distribution station. Twenty eight cryogenic valves including 4 quench protecting valves, many sensors such as temperature sensors, pressure transmitters, and flowmeters are mounted on the system. The HDS has to control the 4.5 K supercritical helium (600 g/s) for 30 superconducting coils and their superconducting bus-lines, 55 K helium (270 g/s) pressurized to 18 bars for the thermal shields and the gravity supports, and a maximum 17.5 g/s of liquid helium for 18 current leads, provided from the HRS which has a 4.5 K equivalent cooling power of 9 kW. The helium distribution system consists of a helium distribution box (DB), 5 helium transfer lines, a PLC based helium control system (HCS), etc. The helium control system is connected to the KSTAR supervisory control & interlock system. The detailed status regarding the construction, commissioning during first cool-down, and the instrumentation & control (I&C) system are included in this paper.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1582
Ending Page	1586
Page Count	5
File Size	339372
File Format	PDF
ISSN	10518223
Volume Number	19
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Helium Control systems Cryogenics Superconducting magnets Valves Temperature sensors Temperature control Superconducting coils Coolants Refrigeration superconducting magnet Helium distribution system (HDS) helium refrigeration system (HRS) KSTAR
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Hydraulic Behavior of Rectangular Cable-In-Conduit Conductor for KSTAR Superconducting Magnet System

First Commissioning Results of the KSTAR Cryogenic System

Construction and Commissioning Results of the KSTAR Current Lead System

Thermohydraulic Behaviors of KSTAR PF Superconducting Magnet System in Operation

Commissioning Test Results of Variable-Temperature Helium Refrigerator/Liquefier for NIFS Superconducting Magnet Test Facility

Performance of the Quench Detection System for the KSTAR CS Magnet System

Stability Analysis of the KSTAR PF Busline

Analysis of the Helium Behavior Due to AC Losses in the KSTAR Superconducting Coils

Pressure Drop of CICC From Manufacturing Stage to Plasma Operation in KSTAR Superconducting Magnet System

Construction and Commissioning of the KSTAR Helium Distribution System

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