Note: A simple model for thermal management in solenoids

Journal Article · Fri Nov 15 00:00:00 EST 2013 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4832041· OSTI ID:22251404

Ellis, J. ^[1]

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1. The Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

We describe a model of the dynamical temperature evolution in a solenoid winding. A simple finite element analysis is calibrated by accurately measuring the thermally induced resistance change of the solenoid, thus obviating the need for accurate knowledge of the mean thermal conductivity of the windings. The model predicts quasi thermal runaway for relatively modest current increases from the normal operating conditions. We demonstrate the application of this model to determine the maximum current that can be safely applied to solenoids used for helium spin-echo measurements.

• OSTI ID: 22251404
• Journal Information: Review of Scientific Instruments, Vol. 84, Issue 11; Other Information: (c) 2013 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
EVOLUTION
FINITE ELEMENT METHOD
HELIUM
SOLENOIDS
SPIN ECHO
THERMAL CONDUCTIVITY