Speaker
Jean-Pierre Friconneau
(ITER)
Description
ITER is a large scale fusion device designed to study the high temperature fusion reaction between tritium and deuterium. The success of a tokamak-type fusion reactor will depend to a great extent on developing reliable and safe methods of carrying out routine maintenance and repairs remotely.
Remote Handling System (RHS) are used to perform remotely the maintenance of the vacuum vessel. They will be contaminated during exposure inside ITER Vacuum Vessel with activated dust,tritium and beryllium. RHS will be transported to the Hot Cell Facility at level B1/B2 to be remotely decontaminated before hands-on maintenance operation. Maintenance is made of repair, changing parts, testing and re-commissioning activities. The first commissioning and the training on RHS will take place in a cold Test Facility, free from nuclear or Berylium hazard.
In summary, The system for RH Equipment maintenance shall provide the means to :
Remote decontaminate the Remote Handling Systems.
Support hands-on maintenance tasks of the Remote Handling Systems.
Support recommissioning tasks of the Remote Handling Systems.
Support rehearsal tasks (checking & training) of the Remote Handling Systems
In this paper the results of concept design engineering investigation of the routine remote maintenance and repairs is developped. Maintenance requirements for a nuclear fusion facility, are rather similar to those of JET, but magnified. A dedicated facility of a unique scale is planned to support ITER remote maintenance activities. The paper focuses the proposed concept for process and equipment of the hot cell with consideration on integration and safety matters.
Co-author
Jean-Pierre Friconneau
(ITER, St Paul Lez Durance, France)
