Abstract

Pressure drop and quench pressure rise characteristics were measured using cable-in-conduit conductors with have hydraulic parameters similar to superconducting coils designed for the Fusion Experimental Reactor (FER). We have found that the friction factors have a smooth slope at the region of Reynolds number from 10 2 to 10 4 and they are in good agreement with the Nikuradse equation based on turbulent flow in a tube. In addition, the pressure drop of a cable-in-conduit conductor is roughly twice the pressure drop of a smooth tube. The pressure rise measured at a full quench condition is in proportion to the heat input to helium and is in good agreement with the calculated value. This paper describes the measured pressure drop and quench pressure rise characteristics and compares them with the calculated values.

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