2015
DOI: 10.1109/tasc.2014.2373973
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Numerical Winding Model for the Analysis of Superconducting Insert Coils

Abstract: The process of quench development in a single conductor, e.g., in a high temperature superconducting tape, is governed by its physical properties. In a superconducting magnet coil the addition of insulating materials and the way in which the coils are thermally anchored also play an important role in the thermal stability and quench behavior of the system. Previous quench modeling works using commercial software are mostly based on anisotropic continuum medium approximation, where the coil is considered as an … Show more

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Cited by 6 publications
(4 citation statements)
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“…The evolution of the computed hot spot temperature of each pancake during the quench is shown in figure 8. It is worth noting that the peak temperature in each pancake has a similar initial growth during the external heat pulse for the two groups of pancakes (7,8,9) and (10,11,12), with the first group reaching higher temperatures. Before the end of the external heat pulse, about 0.4 s, the temperature of pancake 8 rises to significantly higher temperatures than that of the other pancakes.…”
Section: Temperature Evolutionmentioning
confidence: 91%
See 1 more Smart Citation
“…The evolution of the computed hot spot temperature of each pancake during the quench is shown in figure 8. It is worth noting that the peak temperature in each pancake has a similar initial growth during the external heat pulse for the two groups of pancakes (7,8,9) and (10,11,12), with the first group reaching higher temperatures. Before the end of the external heat pulse, about 0.4 s, the temperature of pancake 8 rises to significantly higher temperatures than that of the other pancakes.…”
Section: Temperature Evolutionmentioning
confidence: 91%
“…One of the issues to be solved is the high aspect ratio of the HTS tapes, which measure approximately 4-6 mm in width, 0.1-0.12 mm in thickness, with lengths that may exceed hundreds of metres or kilometres in large magnets. This issue has been tackled by several researchers through the application of appropriate homogenization techniques [5][6][7][8][9].…”
Section: Introductionmentioning
confidence: 99%
“…A FEM heat transfer model is coupled to the network model to calculate the temperature distribution which is needed for the temperature-dependent electrical and thermal material properties and the critical current. The REBCO conductor shown in figure 3 is treated as a homogeneous conductor, and thus the effective homogeneous thermal parameters are estimated by using the rules of mixtures [17]. The estimated anisotropic homogeneous thermal conductivities are shown in figure 5(a) for the tangential direction and (b) for the radial direction, and the homogeneous heat capacity is shown in (c).…”
Section: D Homogeneous Thermal Modelmentioning
confidence: 99%
“…Note that the location of the heater in the simulation remains unchanged unless stated otherwise. Moreover, the effective homogeneous parameters are obtained by the rule of mixtures [37], and they have been obtained in [12], as shown in figure 3. It should be pointed out that only the radial thermal conductivity is used in the 1D heat transfer model.…”
Section: Homogeneous Thermal Modelmentioning
confidence: 99%