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In July 2002, an unused nuclear reactor vessel head from Unit 2 was removed from its containment building for transportation to Davis-Besse Nuclear Power Station near Oak Harbor, Ohio, where it replaced a damaged vessel head on a reactor. [9] Consumers owned a 49 percent share in MCV until 2006. Eight other companies owned the remaining 51 percent.
The reactor has been in extended shutdown since 2004. The reactor was used for training, fundamental research, isotope production and material characterization. TRICO II uses uranium fuel enriched to 20%. CGEA intends to restart the reactor in the future. [6] However to do this replacement parts are needed among which a $3 million digital ...
A reactor vessel head for a pressurized water reactor. This structure is attached to the top of the reactor vessel body. It contains penetrations to allow the control rod driving mechanism to attach to the control rods in the fuel assembly. The coolant level measurement probe also enters the vessel through the reactor vessel head.
The reactor unit is coupled to direct-drive helium closed-cycle gas turbine which drives a generator to produce electricity. The nuclear core design is based upon a new conversion technique in which an initial "starter" section of the core provides the neutrons to convert fertile material (used nuclear fuel, thorium, or depleted uranium ) into ...
In March 2019 Sanmen Unit 2 shut down because of a reactor coolant pump defect, with the root cause still under investigation. [24] A replacement pump has been shipped from the United States by Curtiss-Wright. There have been previous problems with these pumps with impeller blade quality, which involved the return of three pumps to the U.S. in ...
The reactor head under inspection. Unit One is an 879 MWe pressurized water reactor supplied by Babcock & Wilcox. The reactor was shut down from 2002 until early 2004 for safety repairs and upgrades. In 2012 the reactor supplied 7101.700 GWh of electricity. [14]
Units 1 through 4 at the plant. At the time of the earthquake, Unit 4 had been shut down for shroud replacement and refueling since 29 November 2010. [1] [2] All 548 fuel assemblies had been transferred in December 2010 from the reactor to the spent fuel pool on an upper floor of the reactor building [3] where they were held in racks containing boron to damp down any nuclear reaction. [4]
The coolant (treated water), which is maintained at high pressure to prevent boiling, is pumped through the nuclear reactor core. Heat transfer takes place between the reactor core and the circulating water and the coolant is then pumped through the primary tube side of the steam generator by coolant pumps before returning to the reactor core.