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Title: Test results of the U. S. -LCT pool-boiling coils in the International Fusion Superconducting Magnet Test Facility (IFSMTF)

Conference · · IEEE Trans. Magn.; (United States)
OSTI ID:6338247

The international Large Coil Task (LCT) has designed, built, and successfully tested six different toroidal field coils. Each has a 2.5- x 3.5-m D-shaped bore, a current between 10 and 18 kA, and is designed for stable operation at 8 T with a superimposed pulsed field of 0.14 T in 1.0 s and simulated nuclear heating. Included in the torus are two pool-boiling coils designed and fabricated by U.S. firms, General Dynamics/Convair Division (GD) and General Electric/Oak Ridge National Laboratory (GE). Both coils were well instrumented for studies of electromagnetic, mechanical, and thermodynamic properties. Testing of the torus started early in 1986 and was successfully completed on September 3, 1987, although the pulsed field tests with GD and GE had to be deleted from the test program because it was not feasible to devote the required few months to repair the mechanism for moving the pulse coil system to these two test coils. Both coils performed well and met design specifications. In later ''extended-condition'' full-array tests beyond the design values, both operated stably at 100% design current and above 9 T, even with bath temperature higher than 4.3 K. The mechanical behaviour of both coils was generally in good agreement with calculations. Both coils were also safely discharged several times in the extended-condition tests. All results indicate that the technology developed for these two pool-boiling LT coils can be directly applied for future large-scale applications.

Research Organization:
Oak Ridge National Lab., Oak Ridge, TN (US)
OSTI ID:
6338247
Report Number(s):
CONF-870901-; TRN: 89-008088
Journal Information:
IEEE Trans. Magn.; (United States), Vol. 24:2; Conference: 10. international conference on magnet technology (MT-10), Boston, MA, USA, 21 Sep 1987
Country of Publication:
United States
Language:
English