Supplementary material to the paper. Includes data, plots and additional code.
The experiments were conducted using MELCOR.
IFMIF-DONES will be an experimental facility designed to irradiate material samples under conditions similar to those expected in future fusion power reactors. As a radiological facility, it requires the precise design of specific safety subsystems to ensure the protection of the public, the plant personnel and the environment. This is the case of the Argon Purification Subsystem (ArPS), which is responsible for ensuring the inertization of those rooms where liquid Li may be present, involving a risk of fire and hazardous releases. In this context, it is important to set Ar purity requirements as design input for the ArPS to ensure this inertization while being technically sound due to the large amounts of volumes involved. To support this design process, a MELCOR simulation model of the IFMIF-DONES ArPS has been developed. Using this model, we perform a parametric study to analyse the performance of this subsystem under different configurations. The focus is to keep the impurity concentrations of the inert rooms stable during a year of operation in order to minimise the risk of Li reactions, while ensuring dynamic confinement and reducing Ar consumption. In addition, the transition between maintenance and operation modes is considered, analysing the effect of different transition periods and injected Ar inventory.
IFMIF-DONES, MELCOR, Particle accelerators, Safety, Nuclear fusion, Lithium
- Antonio Manjavacas
- Manuel A. Vázquez-Barroso
- Claudio Torregrosa-Martín
- Jorge Maestre
- Francisco Martín-Fuertes
Universidad de Granada, IFMIF-DONES España, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT).
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This work has been financed by the Consejo de Seguridad Nuclear through the Subvención de I+D+i SUBV-12/2021 Ref. PR-051-2021. In addition, it has been financed by the Junta de Andalucia through the project SE2021 UGR IFMIF-DONES co-financed by the European Regional Development Fund ERDF A way to make Europe/Andalusia moves with Europe. Finally, the work has been carried out within the framework of the EUROfusion Consortium, funded by the European Union via the Euratom Research and Training Programme (Grant Agreement No 101052200 — EUROfusion). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.