Abstract
The present study aims at providing quantitative insight, extracted from experimental data, about the impact of Lorentz forces on the distribution of static heat load within JT-60SA Toroidal Field (TF) coils. More accurately, we assess the distribution of these loads over the winding packs (WP) and casings from Helium enthalpy balances when the TF current is either zero or nominal. This study is motivated by the impact of such loads and associated distribution on the quench margin in operation and on the cryogenics system. It is divided in two parts: the first one focuses on the distribution results obtained for the Cold Test Facility (CTF) tests (i.e., in self-field configuration) while the second one focuses on those obtained during JT-60SA integrated commissioning (i.e., in tokamak configuration). We then draw the main outcomes of these studies and discuss the consistency of the results obtained for the two configurations.
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