Tests and Analyses of Two TF Conductor Prototypes for JT-60SA

Zani, L.; Barabaschi, P.; Bruzzone, Pierluigi; Ciazynski, D.; Decool, P.; Lacroix, Benoît; Nannini, M.; Stepanov, B.; Torre, A.; Verger, J.M.

doi:10.1109/tasc.2010.2041199

Cited by 14 publications

(16 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A saddle coil dipole superimposes a pulsed magnetic field to the dc magnetic field perpendicularly to the dc field and to the conductor. For details see [1].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stability of a cable in conduit conductor under fast magnetic field variations

Duchateau

Turck

Lacroix

et al. 2012

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

Under fast magnetic field variations, ac losses are deposited in a Cable in Conduit Conductor (CICC). The corresponding power losses are transferred to helium thanks to the high wetted perimeter of the conductor. The critical energy of the CICC can be expected to be proportional to the high volumetric heat capacity of helium and to the temperature margin. To confirm the expectations, stability tests under a transversal pulsed magnetic field were performed in the Sultan test facility on a prototype JT-60SA conductor sample. The shape of the magnetic field variation as a function of time is a truncated sinusoid. The experimental results are not totally in agreement with expected behavior on two particular points: -the deposited energy in the conductor as a function of the pulsed field amplitude, measured by calorimetry, deviates from the expected quadratic behavior for coupling losses. The deviation is also increasingly dependent on the transport current. -at a given Sultan background magnetic field, the critical energies at low temperature margins are reduced in comparison with expected values. An explanation based on the saturation of parts of the cable is proposed.

show abstract

“…A saddle coil dipole superimposes a pulsed magnetic field to the dc magnetic field perpendicularly to the dc field and to the conductor. For details see [1].…”

Section: Introductionmentioning

confidence: 99%

“…These results are important regarding the behavior of a CICC against the fast magnetic field variations, which can occur in tokamaks in particular during plasma disruption. Preliminary results have already been given in [1], the aim of the paper is to present a more in depth analysis.…”

Section: Introductionmentioning

confidence: 99%

Stability of a cable in conduit conductor under fast magnetic field variations

Duchateau

Turck

Lacroix

et al. 2012

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

show abstract

“…3. The main conductor and strand data used for the present analysis are given in Table 1 still under consideration [12,13], we shall concentrate here on the Luvata strand, that has been used in the manufacture of the two sample prototypes tested in the Sultan facility [14].) The strand critical current density (non Cu) is parameterized here according to the scaling in [15] and using the following values for the parameters: C 0 = 3.355 × 10 11 A T/m 2 , B C20 = 15.19 T, T C0 = 8.907 K,˛= 1.67, = 1.88, = 2.249, n = 1.7, which were obtained from the strand characterization [11]; a value of the cable n is also needed here and it was assumed equal to 50.…”

Section: Coil and Conductormentioning

confidence: 99%

Computation of JT-60SA TF coil temperature margin using the 4C code

Bonifetto

Domalapally

Polli

et al. 2011

Fusion Engineering and Design

View full text Add to dashboard Cite

“…A first simple mock up was built from a 350 mm length available pre-prototype conductor sample previously used for conductor and joint qualification [5] with a relevant cable void fraction. The inlet was built by welding of a pipe on the jacket previously drilled with a 12 mm hole which is the maximum possible diameter on a single face of the rectangular conductor.…”

Section: Helium Inletsmentioning

confidence: 99%

“…A qualification of this design including DC resistance as well as AC losses was performed through manufacture and test of a dedicated full size joint sample [5].…”

Section: Jointsmentioning

confidence: 99%