NDLI: Effects of Subcooling on Lengths of Propagating Normal Zones in the LHD Helical Coils

Content Provider	IEEE Xplore Digital Library
Author	Imagawa, S. Noguchi, H. Obana, T. Hamaguchi, S. Yanagi, N. Mito, T.
Copyright Year	2002
Description	Propagation of a short normal zone was observed in a helical coil of the Large Helical Device, when the coil was cooled with subcooled helium, of which the inlet and outlet temperatures are 3.2 K and below 4.0 K, respectively. The normal zone was induced at the bottom position of the coil. It propagated to only the downstream side of the current with recovery from the opposite side, and stopped after passing the outer equator of the torus. The induced balance voltage is obviously lower and the propagating time is shorter than those of propagating normal zones observed in the helical coil cooled with saturated helium at 4.4 K. According to the simulation of the propagation of a normal zone, it is considered that such a short normal zone at the current close to the minimum propagating current propagates without full transition to film boiling.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	5
Page Count	5
File Size	1160892
File Format	PDF
ISSN	10518223
Volume Number	25
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Helium Aluminum Heating Conductors Copper Heat transfer simulation balance voltage current diffusion normal-zone propagation oxidization
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Reconsideration of Evaluation of Balance Voltages During a Normal Zone Propagation in the LHD Helical Coils

Detection System for Propagating Normal-Zones With Pick-Up Coils in the LHD Helical Coils

Increase of Operating Current of the LHD Helical Coils by Upgrading the Cooling System

Improvement in Cryogenic Stability of the Model Coil of the LHD Helical Coil by Lowering the Temperature

Asymmetrical normal-zone propagation observed in the aluminum-stabilized superconductor for the LHD helical coils

Direct observation of Hall voltage inside the LHD helical conductor

Excitation properties and cryogenic stability of helical coils for the LHD

Performance Tests of the Subcooling System for the LHD Helical Coils

Transient Stability of Large Helical Device Conductor With and Without Aluminum Stabilizer (1)—Experimental Results

Effects of Subcooling on Lengths of Propagating Normal Zones in the LHD Helical Coils

Similar Documents

Reconsideration of Evaluation of Balance Voltages During a Normal Zone Propagation in the LHD Helical Coils

Detection System for Propagating Normal-Zones With Pick-Up Coils in the LHD Helical Coils

Increase of Operating Current of the LHD Helical Coils by Upgrading the Cooling System

Improvement in Cryogenic Stability of the Model Coil of the LHD Helical Coil by Lowering the Temperature

Asymmetrical normal-zone propagation observed in the aluminum-stabilized superconductor for the LHD helical coils

Direct observation of Hall voltage inside the LHD helical conductor

Excitation properties and cryogenic stability of helical coils for the LHD

Performance Tests of the Subcooling System for the LHD Helical Coils

Transient Stability of Large Helical Device Conductor With and Without Aluminum Stabilizer (1)—Experimental Results

Effects of Subcooling on Lengths of Propagating Normal Zones in the LHD Helical Coils