NDLI: Sheathed-Thermocouple-Electrode Type Instrumentation for LMFBR Individual Subassembly Monitoring

Content Provider	IEEE Xplore Digital Library
Author	Kuwabara, Jun Kato, Yoshio
Copyright Year	1963
Abstract	Outlet temperature, channel flow-rate, boiling, fission-gas discharge and cover-gas entrainment can be detected from four wires of a pair of grounded-type sheathed chromel-alumel thermocouples inserted into the outlet open channel where magnetic flux traverses from a magnet circuit mounted inside the wrapper tube of individual subassembly of the liquid-metal-cooled fast breeder reactor. The modified conceptual design is presented. Use of magnet in the core environment for a period of time equal to the subassembly life seems hopeful according to reported informations. Simulation tests reveal its excellent stability and linearity just like an ordinary type. Calculated emf by an approximation is almost consistent with the measured. Shunt effect by the sheath is minor. Twenty-one proto-type magnet circuits are arraied in positions of the core-map. A continuous systematic arrangement is found to give nearly uniform flux density over the core. Two of them are built in a demonstration set, which is tested in sodium flow of up to 550°C. In actual use of the conceptual design, approximately 19 mV will be obtained against sodium flow of 10 m/sec at 650°C. Argon-gas is injected into stagnant and upflowing sodium. Significant noise is observed. Noise-amplitude monitoring is recommended for sensitive gas-void detection. In conclusion, this type is considered very promising in future LMFBR plants.
Sponsorship	IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD
Starting Page	793
Ending Page	806
Page Count	14
File Size	3595612
File Format	PDF
ISSN	00189499
Volume Number	19
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1972-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Instruments Monitoring Magnetic flux Magnetic cores Magnetic circuits Circuit testing Temperature Wires Electron tubes Magnetic liquids
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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