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- Lucens_reactor abstract "The Lucens reactor at Lucens, Vaud, Switzerland, was a small pilot nuclear reactor destroyed by an accident in 1969.In 1962 the construction of a Swiss-designed pilot nuclear power plant began. The heavy-water moderated, carbon dioxide gas-cooled, reactor was built in an underground cavern and produced 30 megawatts of heat (which was used to generate 8.3 megawatts of electricity). It became critical in 1966 and the plant was decommissioned in 1988. It was fueled by 0.96% enriched uranium alloyed with chromium cased in magnesium alloy (magnesium with 0.6% zirconium) inserted into a graphite matrix. Carbon dioxide gas was pumped into the top of the channels at 6.28 MPa and 223 °C and exited the channels at a pressure of 5.79 MPa and at a temperature of 378 °C.It was intended to operate until the end of 1969, but during a startup on January 21, 1969, it suffered a loss-of-coolant accident, leading to a partial core meltdown and massive radioactive contamination of the cavern, which was then sealed.The accident was caused by water condensation forming on some of the magnesium alloy fuel element components during shutdown and corroding them. The corrosion products from this accumulated in some of the fuel channels. One of the 73 vertical fuel channels was sufficiently blocked by it to impede the flow of carbon dioxide coolant so that the magnesium alloy cladding melted and further blocked the channel. The increase in temperature and exposure of the uranium metal fuel to the coolant eventually caused the fuel to catch fire in the carbon dioxide coolant atmosphere. The pressure tube surrounding the fuel channel split because of overheating and bowing of the burning fuel assembly, and the carbon dioxide coolant leaked out of the reactor.No irradiation of workers or the population occurred, though the cavern containing the reactor was seriously contaminated. The cavern was decontaminated and the reactor dismantled over the next few years.".
- Lucens_reactor wikiPageExternalLink Accidents.shtml.
- Lucens_reactor wikiPageExternalLink switzerland.php.
- Lucens_reactor wikiPageID "1988220".
- Lucens_reactor wikiPageRevisionID "596258565".
- Lucens_reactor hasPhotoCollection Lucens_reactor.
- Lucens_reactor subject Category:Buildings_and_structures_in_Vaud.
- Lucens_reactor subject Category:Former_nuclear_power_stations.
- Lucens_reactor subject Category:Nuclear_accidents_and_incidents.
- Lucens_reactor subject Category:Nuclear_power_stations_in_Switzerland.
- Lucens_reactor subject Category:Nuclear_technology_in_Switzerland.
- Lucens_reactor subject Category:Radioactively_contaminated_areas.
- Lucens_reactor subject Category:Science_and_technology_in_Switzerland.
- Lucens_reactor point "46.69277777777778 6.8275".
- Lucens_reactor type Area108497294.
- Lucens_reactor type Artifact100021939.
- Lucens_reactor type Facility103315023.
- Lucens_reactor type FormerNuclearPowerStations.
- Lucens_reactor type Location100027167.
- Lucens_reactor type NuclearPowerStationsInSwitzerland.
- Lucens_reactor type Object100002684.
- Lucens_reactor type PhysicalEntity100001930.
- Lucens_reactor type PowerStation103996655.
- Lucens_reactor type RadioactivelyContaminatedAreas.
- Lucens_reactor type Region108630985.
- Lucens_reactor type Station104306080.
- Lucens_reactor type Whole100003553.
- Lucens_reactor type YagoGeoEntity.
- Lucens_reactor type YagoLegalActorGeo.
- Lucens_reactor type YagoPermanentlyLocatedEntity.
- Lucens_reactor type SpatialThing.
- Lucens_reactor comment "The Lucens reactor at Lucens, Vaud, Switzerland, was a small pilot nuclear reactor destroyed by an accident in 1969.In 1962 the construction of a Swiss-designed pilot nuclear power plant began. The heavy-water moderated, carbon dioxide gas-cooled, reactor was built in an underground cavern and produced 30 megawatts of heat (which was used to generate 8.3 megawatts of electricity). It became critical in 1966 and the plant was decommissioned in 1988.".
- Lucens_reactor label "Centrale nucleare di Lucens".
- Lucens_reactor label "Centrale nucléaire de Lucens".
- Lucens_reactor label "Elektrownia jądrowa Lucens".
- Lucens_reactor label "Lucens reactor".
- Lucens_reactor label "Reaktor Lucens".
- Lucens_reactor sameAs Reaktor_Lucens.
- Lucens_reactor sameAs Centrale_nucléaire_de_Lucens.
- Lucens_reactor sameAs Centrale_nucleare_di_Lucens.
- Lucens_reactor sameAs Elektrownia_jądrowa_Lucens.
- Lucens_reactor sameAs m.06c5p5.
- Lucens_reactor sameAs Q686884.
- Lucens_reactor sameAs Q686884.
- Lucens_reactor sameAs Lucens_reactor.
- Lucens_reactor lat "46.69277777777778".
- Lucens_reactor long "6.8275".
- Lucens_reactor wasDerivedFrom Lucens_reactor?oldid=596258565.
- Lucens_reactor isPrimaryTopicOf Lucens_reactor.