Modelling of dual stability in a cable-in-conduit conductor

Bottura, L; Minervini, J V

Title: Modelling of dual stability in a cable-in-conduit conductor

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Abstract

A zero dimensional stability model has been developed for cable-in-conduit superconductors. The model is effective in simulating the multi-valued stability behaviour in the vicinity of the limiting current. This has been by modifying the helium heat transfer coefficient to account for inertial and fractional terms which affect the induced helium flow. Although this effect is treated qualitatively on a pseudo-one-dimensional basis, the model can reproduce with remarkable accuracy the multi-valued stability behaviour shown in earlier measurements performed by Lue, et al. The influence of the steady state mass flow is discussed, and a first order approximation of its effect is introduced in the model showing how an increase of the steady flow tends to wash-away'' the multiple stability region as observed in the experiment.

Authors:

Bottura, L ^[1]; Minervini, J V ^[2]

Max-Planck-Institut fuer Plasmaphysik, Garching (Germany, F.R.). NET Design Team
Los Alamos National Lab., NM (USA)

Publication Date:: Mon Jan 01 00:00:00 EST 1990

Research Org.:: Los Alamos National Lab., NM (USA)

Sponsoring Org.:: DOE/ER

OSTI Identifier:: 6632363

Report Number(s):: LA-UR-90-3233; CONF-900944-4
ON: DE91000220

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Conference

Resource Relation:: Conference: Applied superconductivity conference, Aspen, CO (USA), 24-28 Sep 1990

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; SUPERCONDUCTING CABLES; TRANSIENTS; HEAT TRANSFER; HELIUM; MATHEMATICAL MODELS; STABILITY; CABLES; CONDUCTOR DEVICES; ELECTRIC CABLES; ELECTRICAL EQUIPMENT; ELEMENTS; ENERGY TRANSFER; EQUIPMENT; FLUIDS; GASES; NONMETALS; RARE GASES; 426001* - Engineering- Superconducting Devices & Circuits- (1990-); 656100 - Condensed Matter Physics- Superconductivity

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                    Bottura, L, and Minervini, J V. Modelling of dual stability in a cable-in-conduit conductor.  United States: N. p., 1990. 
        Web.

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                    Bottura, L, & Minervini, J V. Modelling of dual stability in a cable-in-conduit conductor.  United States.

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                    Bottura, L, and Minervini, J V. 1990.  
        "Modelling of dual stability in a cable-in-conduit conductor".  United States.  https://www.osti.gov/servlets/purl/6632363.

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@article{osti_6632363,

  title        = {Modelling of dual stability in a cable-in-conduit conductor},

  author       = {Bottura, L and Minervini, J V},

  abstractNote = {A zero dimensional stability model has been developed for cable-in-conduit superconductors. The model is effective in simulating the multi-valued stability behaviour in the vicinity of the limiting current. This has been by modifying the helium heat transfer coefficient to account for inertial and fractional terms which affect the induced helium flow. Although this effect is treated qualitatively on a pseudo-one-dimensional basis, the model can reproduce with remarkable accuracy the multi-valued stability behaviour shown in earlier measurements performed by Lue, et al. The influence of the steady state mass flow is discussed, and a first order approximation of its effect is introduced in the model showing how an increase of the steady flow tends to wash-away'' the multiple stability region as observed in the experiment.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/6632363},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Jan 01 00:00:00 EST 1990},

  month        = {Mon Jan 01 00:00:00 EST 1990}

}

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