Ten yeas of maintenance on Tore Supra actively cooled components

摘要

Tore Supra, the only superconducting Tokamak equipped of actively water cooled plasma facing components, has now completed 10 years of operation (1988-1998). The associated primary pressurised water cooling loop (4 Mpa at 150deg.c)is able to exhaust a 20 MW convected or radiated power during long pulses of 200 s. The first part of this paper is devoted to an inventory and analysis of the water leaks form the plasma facing and their consequences, such as the optimisation of the pressurised water loop emptying sequence.