MFTF test coil construction and performance

Cornish, D.N.; Zbasnik, J.; Leber, R. L.; Hirzel, D.G.; Johnston, Juliet; Rosdahl, A.R.

doi:10.1109/tmag.1979.1060271

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Simulation and Test Data1

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1979

1999

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Cited by 9 publications

(2 citation statements)

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“…The validity of this theoretical model has been verified experimentally. In particular, tests on a large experimental coil at the Lawrence Livermore Laboratory have demonstrated a similar growth from an artifically induced normal zone (5). It has also been shown that the normal zone propagates from coil to coil as well a?…”

Section: It Is Assumed Thatmentioning

confidence: 84%

Currents and voltages in the MFTF coils during the formation of a normal zone

Owen¹

1980

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Section: It Is Assumed Thatmentioning

confidence: 84%

Currents and voltages in the MFTF coils during the formation of a normal zone

Owen¹

1980

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“…where: B = field in tesla. (6) where the constant Cz and unknown exponents m, n may be evaluated by curve fitting the finite element predicted and measured velocity data for the various conductors.…”

Section: Simulation and Test Datamentioning

confidence: 99%

Generalized multidemensional propagation velocity equations for pool-boiling superconducting windings

Christensen¹,

O'Loughlin²

1984

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Several finite difference, finite element detailed analyses of propagation velocities in up to three dimensions in pool-boiling windings have been con ducted for different electromagnetic and cryogenic environments. Likewise, a few full scale simulated winding and magnet tests have measured propagation velocities. These velocity data have been correlated in terms of winding thermophysical parameters. This analysis expresses longitudinal and trans verse propagation velocities in the form of power function regression equations for a wide variety of windings and electromagnetic and thcrmohydraulic environments. The generalized velocity equations are considered applicable to well-ventilated, monolithic conductor windings. These design equations are used piecewise in a gross finite difference mode as functions of field to predict the rate of normal zone growth during quench conditions. A further check of the validity of these predictions is available through total predicted quench durations correlated with actual quench durations of large magnets.

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