Abstract
Pressure rise during the quench of NbTi/Cu cable-in-conduit conductor has been experimentally and analytically investigated. The pressure rise under full-length quenching of the conductor is shown to be in good agreement with the calculated pressure rise based on Miller's equation, independently of joule power density. The time elapsed to maximum pressure rise depends on the transport current, which is determined by the joule power density. Pressure rise during quench with a local normal zone strongly depends on the time from the quench to the dump. The measured pressure rise under local quench condition is in good agreement with the calculated value based on L. Dresner's (1986) analytical equation. It is concluded that the maximum pressure rise of a conduit conductor can be restricted by quick discharge in actual fusion magnets. >
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