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- UNGG_reactor abstract "The UNGG (Uranium Naturel Graphite Gaz) is an obsolete nuclear power reactor design developed by France. It was graphite moderated, cooled by carbon dioxide, and fueled with natural uranium metal. The first generation of French nuclear power stations were UNGGs, as was Vandellos unit 1 in Spain. Of ten units built, all were shut down by end 1994, most for economic reasons due to staffing costs. The UNGG and the Magnox are the two main types of GCR. A UNGG reactor is often referred to simply as a GCR in English documents, or sometimes loosely as a Magnox. It was developed independently of and in parallel to the British Magnox design, and to meet similar requirements. The main difference between the two designs is that UNGG used a horizontal fuel rod orientation, rather than the vertical orientation used in the Magnox reactor. The fuel cladding material was magnesium-zirconium alloy in the UNGG, as opposed to magnesium-aluminium in Magnox. As both claddings react with water, they can be stored in a spent fuel pool for short times only, making short-term reprocessing of the fuel essential, and requiring heavily shielded facilities for this.The programme was a succession of units, with changes to the design increasing power output. In the experimental phase they were built by the Commissariat à l'Énergie Atomique (CEA), and later by Électricité de France (EDF). The largest UNGG reactor build was Bugey 1 with a net electrical output of 540 MW.".
- UNGG_reactor thumbnail A1_A2_saint_laurent.JPG?width=300.
- UNGG_reactor wikiPageExternalLink abst_28008789.html.
- UNGG_reactor wikiPageExternalLink abst_iwggcr19_16.html.
- UNGG_reactor wikiPageID "11421569".
- UNGG_reactor wikiPageRevisionID "597665422".
- UNGG_reactor hasPhotoCollection UNGG_reactor.
- UNGG_reactor subject Category:Graphite_moderated_reactors.
- UNGG_reactor subject Category:Nuclear_power_reactor_types.
- UNGG_reactor type Artifact100021939.
- UNGG_reactor type Device103183080.
- UNGG_reactor type ElectricalDevice103269401.
- UNGG_reactor type GraphiteModeratedReactors.
- UNGG_reactor type Instrumentality103575240.
- UNGG_reactor type Object100002684.
- UNGG_reactor type PhysicalEntity100001930.
- UNGG_reactor type Reactor104057846.
- UNGG_reactor type Whole100003553.
- UNGG_reactor comment "The UNGG (Uranium Naturel Graphite Gaz) is an obsolete nuclear power reactor design developed by France. It was graphite moderated, cooled by carbon dioxide, and fueled with natural uranium metal. The first generation of French nuclear power stations were UNGGs, as was Vandellos unit 1 in Spain. Of ten units built, all were shut down by end 1994, most for economic reasons due to staffing costs. The UNGG and the Magnox are the two main types of GCR.".
- UNGG_reactor label "UNGG reactor".
- UNGG_reactor label "UNGG".
- UNGG_reactor label "UNGG-Reaktor".
- UNGG_reactor label "UNGG-reactor".
- UNGG_reactor label "Uranium naturel graphite gaz".
- UNGG_reactor sameAs UNGG-Reaktor.
- UNGG_reactor sameAs UNGG.
- UNGG_reactor sameAs Uranium_naturel_graphite_gaz.
- UNGG_reactor sameAs UNGG-reactor.
- UNGG_reactor sameAs m.02rb_tt.
- UNGG_reactor sameAs Q1417077.
- UNGG_reactor sameAs Q1417077.
- UNGG_reactor sameAs UNGG_reactor.
- UNGG_reactor wasDerivedFrom UNGG_reactor?oldid=597665422.
- UNGG_reactor depiction A1_A2_saint_laurent.JPG.
- UNGG_reactor isPrimaryTopicOf UNGG_reactor.
