The effects of liquid cryogen on the thermal/electrical characteristics of a gdbco coil in a mixed cryogen cooling system

K. L. Kim; J. B. Song; Y. H. Choi; D. G. Yang; I. K. Yu; M. W. Park; H. G. Lee

doi:10.1109/TASC.2012.2228734

The effects of liquid cryogen on the thermal/electrical characteristics of a gdbco coil in a mixed cryogen cooling system

K. L. Kim, J. B. Song, Y. H. Choi, D. G. Yang, I. K. Yu, M. W. Park, H. G. Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The electrical and thermal properties of a mixed cryogen-cooled 2G HTS coil with respect to liquid cryogen amount were examined to investigate the influence of the solid/liquid ratio on the thermal/electrical stabilities of the GdBCO coil. Thermal contact between the GdBCO coil and solid nitrogen was considerably improved as the amount of liquid neon (LNe) increased. Minimum quench energy values of the GdBCO coil were saturated as the amount of liquid neon increased, which suggested that the excessive LNe was not effective for enhancing the thermal stability of the GdBCO coil. The temperature traces of the GdBCO coil during the quench/recovery tests confirmed that the thermal stability of the coil was enhanced with the aid of the LNe.

Original language	English
Article number	6355627
Journal	IEEE Transactions on Applied Superconductivity
Volume	23
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2012.2228734
Publication status	Published - 2013

Keywords

GdBCO coil
minimum quench energy
mixed cryogen
thermal/electrical stabilities

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2012.2228734

Cite this

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title = "The effects of liquid cryogen on the thermal/electrical characteristics of a gdbco coil in a mixed cryogen cooling system",

abstract = "The electrical and thermal properties of a mixed cryogen-cooled 2G HTS coil with respect to liquid cryogen amount were examined to investigate the influence of the solid/liquid ratio on the thermal/electrical stabilities of the GdBCO coil. Thermal contact between the GdBCO coil and solid nitrogen was considerably improved as the amount of liquid neon (LNe) increased. Minimum quench energy values of the GdBCO coil were saturated as the amount of liquid neon increased, which suggested that the excessive LNe was not effective for enhancing the thermal stability of the GdBCO coil. The temperature traces of the GdBCO coil during the quench/recovery tests confirmed that the thermal stability of the coil was enhanced with the aid of the LNe.",

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AU - Kim, K. L.

AU - Song, J. B.

AU - Choi, Y. H.

AU - Yang, D. G.

AU - Yu, I. K.

AU - Park, M. W.

AU - Lee, H. G.

PY - 2013

Y1 - 2013

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AB - The electrical and thermal properties of a mixed cryogen-cooled 2G HTS coil with respect to liquid cryogen amount were examined to investigate the influence of the solid/liquid ratio on the thermal/electrical stabilities of the GdBCO coil. Thermal contact between the GdBCO coil and solid nitrogen was considerably improved as the amount of liquid neon (LNe) increased. Minimum quench energy values of the GdBCO coil were saturated as the amount of liquid neon increased, which suggested that the excessive LNe was not effective for enhancing the thermal stability of the GdBCO coil. The temperature traces of the GdBCO coil during the quench/recovery tests confirmed that the thermal stability of the coil was enhanced with the aid of the LNe.

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KW - minimum quench energy

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KW - thermal/electrical stabilities

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The effects of liquid cryogen on the thermal/electrical characteristics of a gdbco coil in a mixed cryogen cooling system

Abstract

Keywords

ASJC Scopus subject areas

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