Basic experiments during loss of vacuum event (LOVE) in fusion experimental reactor
- JAERI, Ibaraki (Japan)
If a loss of vacuum event (LOVE) occurs due to damage of the vacuum vessel of a nuclear fusion experimental reactor, some chemical reactions such as a graphic oxidation and a buoyancy-driven exchange flow take place after equalization of the gas pressure between the inside and outside of the vacuum vessel. The graphite oxidation would generate inflammable carbon monoxide and release tritium retained in the graphite. The exchange flow through the breaches may transport the carbon monoxide and tritium out of the vacuum vessel. To add confidence to the safety evaluations and analyses, it is important to grasp the basic phenomena such as the exchange flow and the graphite oxidation. Experiments of the exchange flow and the graphite oxidation were carried out to obtain the exchange flow rate and the rate constant for the carbon monoxide combustion, respectively. These experimental results were compared with existing correlations. The authors plan a scaled-model test and a full-scale model test for the LOVE.
- OSTI ID:
- 5473568
- Journal Information:
- Journal of Fusion Energy; (United States), Vol. 12:1-2; ISSN 0164-0313
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental and numerical studies on heat transfer and fluid flow characteristics in a vacuum vessel of fusion reactor after the loss-of-vacuum-events occurred
Experimental study of buoyancy-driven exchange flow from breaches under LOVA condition
Related Subjects
THERMONUCLEAR REACTORS
REACTOR ACCIDENTS
SAFETY ANALYSIS
ATMOSPHERIC PRESSURE
CARBON MONOXIDE
GRAPHITE
OXIDATION
TRITIUM
ACCIDENTS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTAL MINERALS
ELEMENTS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MINERALS
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
700412* - Magnetic Confinement Devices- (1992-)