A simplified 1-D quench model for preliminary prediction applied to JT-60SA toroidal field coil

A simplified thermal hydraulic tool dedicated to quench propagation in superconducting magnets was devel-oped. It models 1-D flow and heat transfers in cable-in-conduit conductor coupled with a helium hydraulic network. The model relies on assumptions saving computational resources for engineering design purposes and system performances assessment. It can simulate the quench development for both the early stage before primary quench detection as well as for the current discharge stage. The code robustness and accuracy are investigated on quench simulations of JT-60SA toroidal field coil in nominal tokamak conditions. Furthermore, a comparison with the widely used SuperMagnet code depicting consistent results confirms the simplified assumptions.