Preliminary Design and Analysis of ITER In-Wall Shielding

摘要

ITER in-wall shielding(IIS)is situated between the doubled shells of the ITERVacuum Vessel(IVV).Its main functions are applied in shielding neutron,gamma-ray and toroidalfield ripple reduction.The structure of IIS has been modelled according to the IVV design criteriawhich has been updated by the ITER team(IT).Static analysis and thermal expansion analysiswere performed for the structure.Thermal-hydraulic analysis verified the heat removal capabilityand resulting temperature,pressure,and velocity changes in the coolant flow.Consequently,ourdesign work is possibly suitable as a reference for IT's updated or final design in its next step.