Molinari, M.; D’Onorio, M.; Mariano, G.; Terranova, N.; Caruso, G. Water Chemistry Impact on Activated Corrosion Products: An Assessment on Tokamak Reactors. Energies2023, 16, 4726.
Molinari, M.; D’Onorio, M.; Mariano, G.; Terranova, N.; Caruso, G. Water Chemistry Impact on Activated Corrosion Products: An Assessment on Tokamak Reactors. Energies 2023, 16, 4726.
Molinari, M.; D’Onorio, M.; Mariano, G.; Terranova, N.; Caruso, G. Water Chemistry Impact on Activated Corrosion Products: An Assessment on Tokamak Reactors. Energies2023, 16, 4726.
Molinari, M.; D’Onorio, M.; Mariano, G.; Terranova, N.; Caruso, G. Water Chemistry Impact on Activated Corrosion Products: An Assessment on Tokamak Reactors. Energies 2023, 16, 4726.
Abstract
Activated Corrosion Products (ACPs) formation and deposition pose a critical safety issue for nuclear fusion reactors. The working fluid transports the ACPs towards regions accessible to worker personnel. Predicting ACPs formation deposition and transport is fundamental for source term identification, reduction of radiation exposure assessment, maintenance plan definition, design optimization, and waste management. The code OSCAR-Fusion has been developed by the CEA (France) to evaluate the ACPs generation and transport in closed water-cooled loops for fusion application. This work aims at assessing the impact of water chemistry on the transport, precipitation, and deposition of corrosion products for the EU-DEMO divertor Plasma Facing Unit Primary Heat Transfer System. Sensitivity analyses and uncertainty quantification are needed due to the multi-physics phenomena involved in ACPs formation and transport. The OSCAR-Fusion/RAVEN code coupling developed by the Sapienza University of Rome and ENEA has been used. This work presents the perturbation results of different parameters chosen for a closed water-cooled loop considering a continuous scenario of 1888 days. The aim of this work is to assess the variation of build-up of ACPs, perturbing the alkalizing agent concentration into the coolant and the corrosion and release rates of different materials.
Keywords
Activated Corrosion Products; Water Chemistry; OSCAR; RAVEN; Nuclear Safety
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
