2016
DOI: 10.3390/en9080578
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A Review of Dangerous Dust in Fusion Reactors: from Its Creation to Its Resuspension in Case of LOCA and LOVA

Abstract: Abstract:The choice of materials for the future nuclear fusion reactors is a crucial issue. In the fusion reactors, the combination of very high temperatures, high radiation levels, intense production of transmuting elements and high thermomechanical loads requires very high-performance materials. Erosion of PFCs (Plasma Facing Components) determines their lifetime and generates a source of impurities (i.e., in-vessel tritium and dust inventories), which cool down and dilute the plasma. The resuspension of dus… Show more

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Cited by 45 publications
(18 citation statements)
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“…The fluid dynamics of these events has been experimentally and numerically investigated inside the scaled experimental facilities. The authors carried out, in old works [18,27,[29][30][31], campaigns, where pressure, velocity, and temperature have been measured and analysed. Then, different numerical models have been developed to replicate properly LOVA events.…”
Section: Discussionmentioning
confidence: 99%
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“…The fluid dynamics of these events has been experimentally and numerically investigated inside the scaled experimental facilities. The authors carried out, in old works [18,27,[29][30][31], campaigns, where pressure, velocity, and temperature have been measured and analysed. Then, different numerical models have been developed to replicate properly LOVA events.…”
Section: Discussionmentioning
confidence: 99%
“…The mathematical model used in this work has been tested and validated with the experimental campaign in the scaled facility STARDUST-Upgrade [27]. At the moment, experimental data about LOVAs in TOKAMAKs do not exist, and then it is impossible to directly validate the model for these reactors.…”
Section: Model Validationmentioning
confidence: 99%
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“…In the laboratory of Quantum Electronics and Plasma Physics (QEP), University of Rome "Tor Vergata", the sensor system with the experiment STARDUST-Upgrade has been developed. It is a cylindrical stainless-steel vessel, where it is possible to replicate Loss of Vacuum Accidents with different conditions [17]- [24].…”
Section: Introductionmentioning
confidence: 99%
“…Modeling of a fusion reactor vacuum vessel is crucial for accident analysis and to predict materials inventory and mobilization, both from the experimental and numerical point of view. For that reason, along with experimental facilities to reproduce source term mobilization phenomena [26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36] it is also very important to develop a numerical model [37, 38] in order to predict particles quantities, velocity and direction in case of accidents such as a loss of vacuum, and not referring just to administrative limits but to estimates based on a more accurate methodology.…”
Section: Introductionmentioning
confidence: 99%