A preliminary assessment of beryllium dust oxidation during a wet bypass accident in a fusion reactor

Merrill, B.J.; Moore, Richard L.; Sharpe, John P.

doi:10.1016/j.fusengdes.2008.11.065

Cited by 10 publications

(3 citation statements)

References 9 publications

(8 reference statements)

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“…The beryllium-steam reaction has a higher energy release and reaction rate [99] and so is a greater concern, thus much study has been devoted to it in particular, which is discussed in section 5. Some of these studies have been devoted to dust in particular, see [100][101][102].…”

Section: Hydrogen Generation In Reactions With Steammentioning

confidence: 99%

Materials-related issues in the safety and licensing of nuclear fusion facilities

et al. 2017

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Fusion power holds the promise of electricity production with a high degree of safety and low environmental impact. Favourable characteristics of fusion as an energy source provide the potential for this very good safety and environmental performance. But to fully realize the potential, attention must be paid in the design of a demonstration fusion power plant (DEMO) or a commercial power plant to minimize the radiological hazards. These hazards arise principally from the inventory of tritium and from materials that become activated by neutrons from the plasma. The confinement of these radioactive substances, and prevention of radiation exposure, are the primary goals of the safety approach for fusion, in order to minimize the potential for harm to personnel, the public, and the environment. The safety functions that are implemented in the design to achieve these goals are dependent on the performance of a range of materials. Degradation of the properties of materials can lead to challenges to key safety functions such as confinement. In this paper the principal types of material that have some role in safety are recalled. These either represent a potential source of hazard or contribute to the amelioration of hazards; in each case the related issues are reviewed. The resolution of these issues lead, in some instances, to requirements on materials specifications or to limits on their performance.

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Section: Hydrogen Generation In Reactions With Steammentioning

confidence: 99%

Materials-related issues in the safety and licensing of nuclear fusion facilities

et al. 2017

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“…produced via plasma-surface interactions on the first wall [32,33]. This will clearly be an issue for ceramic breeder designs, where the surface area of the multiplier (∼1 mm beryllium pebbles) is indeed high, and where stresses and friction on the pebbles can also be expected to produce dust.…”

Section: Solid Breedersmentioning

confidence: 99%

The use of water in a fusion power core

Tillack

Humrickhouse

Malang³

et al. 2015

Fusion Engineering and Design

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a b s t r a c tWater has both advantages and disadvantages as a coolant in conceptual designs of future fusion power plants. In the United States, water has not been chosen as a fusion power core coolant for decades. Researchers in other countries continue to adopt water in their designs, in some cases as the leading or sole candidate. In this article, we summarize the technical challenges resulting from the choice of water coolant and the differences in approach and assumptions that lead to different design decisions amongst researchers in this field.

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“…A primary reason for selecting the MELCOR code is its radionuclide and aerosol transport capabilities. Additional modifications to this fusion version of MELCOR have been made over the subsequent years [3]. Recent efforts have included the implementation of an aerosol resuspension model for * Corresponding author.…”

Section: Introductionmentioning

confidence: 99%