NDLI: Preliminary design of a US ITER model poloidal coil

Content Provider	IEEE Xplore Digital Library
Author	Minervini, J.V. Steeves, M.M. Schultz, J.H. Montgomery, D.B. Takayasu, M. Painter, T.A.
Copyright Year	1991
Description	Author affiliation: Plasma Fusion Center, MIT, Cambridge, MA, USA (Minervini, J.V.; Steeves, M.M.; Schultz, J.H.; Montgomery, D.B.; Takayasu, M.; Painter, T.A.)
Abstract	A preliminary design of a central solenoid model coil for ITER (International Thermonuclear Experimental Reactor) has been made. The preliminary conductor and coil design described should achieve the model coil performance requirements with minimum cost and maximum reliability. The design is based on a Nb/sub 3/Sn cable-in-conduit conductor incorporating a conduit made from the new superalloy Incoloy 908. This alloy has excellent mechanical properties and a COE (cost of electricity) well matched to the COE of the superconducting wire. Major advantages in coil performance result, due to reduction of the thermal strain-induced degradation of the critical properties of the Nb/sub 3/Sn superconductor. The principal performance advantages include higher critical current density and higher critical temperature, particularly at high fields, which results in increased operating margins of critical current and stability. A prediction of enhanced operating performance is made relative to conductor designs by other ITER parties which rely on conduits made from austenitic stainless steels with relatively high coefficients of thermal expansion.<>
Starting Page	478
Ending Page	481
File Size	416465
Page Count	4
File Format	PDF
ISBN	0780301323
DOI	10.1109/FUSION.1991.218888
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-09-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Conductors Costs Niobium Tin Superconducting filaments and wires Superconducting coils Solenoids Inductors Superconducting cables Mechanical factors
Content Type	Text
Resource Type	Article

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