Speaker
Marco Breschi
(U)
Description
The main experimental results on the transient heat transfer from solid surfaces to liquid helium are summarized. Models of these phenomena in stability analyses of superconducting wires and cables are presented. A focus on the quench analysis of Rutherford cables subjected to the external heat disturbance due to Beam Losses is presented, showing the impact on stability margin of the heat transfer towards interstitial helium and helium bath. The effects of the non-uniformity of the heat disturbance over the cable volume and of the heat and current redistribution between strands are shown by comparing models of increasing complexity.
