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Supercritical helium cooling of a cable in conduit conductor with an inner tube

✍ Scribed by André Martinez; Jean-Luc Duchateau; Gilbert Bon Mardion; Alain Gauthier; Bernard Rousset

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
287 KB
Volume
34
Category
Article
ISSN
0011-2275

No coin nor oath required. For personal study only.

✦ Synopsis

In the design of forced flow cooling systems of large superconducting magnets for plasma confinement in future fusion reactor, the time needed, after a heat pulse (caused by magnetic field variations), for the cable to be recooled at the initial fluid temperature is an important design parameter. The conductor proposed for these coils, is cooled by a supercritical helium flow in two parallel channels: a peripherical zone, which contains the cable, with a low helium velocity and a channel with a high velocity (cooling path as long as 1000 m). An experiment has been carried out in a C.E. Grenoble facility with two types of cable in conduit (one with an inner tube, one without an inner tube) to check a thermohydraulic model.

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