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Phénix

Coordinates:44°08′36″N4°42′42″E/ 44.14333°N 4.71167°E/44.14333; 4.71167
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Phénix
Map
Official name
  • Phénix
CountryFrance
LocationMarcoule
Coordinates44°08′36″N4°42′42″E/ 44.14333°N 4.71167°E/44.14333; 4.71167
StatusClosed
Construction began1968
Commission date13 December 1973(1973-12-13)
Decommission date1 February 2010(2010-02-01)[1]
Operator(s)CEA
EDF
Nuclear power station
Reactor typeFBR
Reactor supplierCEM
Cooling source
Power generation
Make and modelCEM
Units decommissioned1 x 250MW
Nameplate capacity250MW
Capacity factor27.0%
Annual net output591GW·h

Phénix(French forphoenix) was a small-scale (gross 264/net 233 MWe) prototypefast breeder reactor,located at theMarcoulenuclear site, nearOrange, France.It was apool-type liquid-metal fast breeder reactorcooled with liquidsodium.It generated 590 MW of thermal power, and had a breeding ratio of 1.16 (16% moreplutoniumproduced than consumed), but normally had to be stopped for refueling operations every two months. Phénix continued operating after the closure of the subsequent full-scale prototypeSuperphénixin 1997. After 2004, its main use was investigation oftransmutationofnuclear wastewhile also generating some electricity. Phénix was shut down in 2009.[1]

Thedecommissioning projectstarted in 2005. Between 2009 and 2011, the non-nuclear equipment and turbine hall were dismantled. The decommissioning license was expected for 2015.[2]Finalising of the decommissioning process is expected between 2031 and 2043.[3]

History

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The Marcoule site, with the Phénix reactor on the very left side (red-white chimney) (2013)

Construction of Phénix began in November 1968. The first connection to the French national electricity grid was in December 1973.[1]

Plans for a French fast reactor date as far back as 1958'sRapsodie,and followed up in 1964 for a larger design with a power output of 1 GWe. Construction of the Rapsodie facility started in 1962 and went critical on 28 January 1967. It did not have power producing systems, but its 22 MW of thermal output (MWth) would translate to perhaps 9 MW of electrical output (MWe). Experiments on core configurations were carried out in theMasurcafacility starting in 1966, and design of a larger power-producing facility was already well underway.[4]

During the 1960s, interest innuclear powerwas reaching a crescendo. For France, with littleuraniumsupply of their own, large scale generation would be subject to supply constraints, especially given that nuclear power was experiencing a boom in construction that suggested the available supply would be limited even on a worldwide basis. In France's plans, breeders would serve the twin purposes of producing fuel for their conventionallight water reactorfleet, as well as producing that fuel from the waste fuel from those reactors, thereby reducing the amount ofnuclear wastethey would have to dispose of. Only a small number of breeders, estimated to be around 20, would be required to fuel the fleet of about 200 light water reactors.

France began construction of the Phénix demonstration plant in November 1968, only a year after Rapsodie went critical. It was fueled with 931 kg of highly enriched plutonium, around 77% Pu-239. The fuel load is capable of running for about 90 days maximum, but in practice it normally ran for two month periods. Due to its design, refueling required the reactor to be shut down. As a result, it had a lowcapacity factor(CF), on the order of 65%.[5]As a prototype plant, a high CF was not a design goal, although any practical design would have to improve this.[6]Phénix demonstrated a breeding ratio of 1.16,[7]meaning it produced 16% more fuel than it consumed, while also producing 233 MWe in normal operation.

Phénix ran without problems through the 1970s and '80s, but in the early 1990s it began to demonstrate a number of unexplained behaviours, including large power transients. This had serious safety implications, and the reactor was repeatedly shut down, spending most of the period from 1991 to 1994 being studied while offline. The long offline period required it to be recertified, so the plant also underwent a significant refurbishment between 1994 and 2002. It was finally recertified in June 2003, but only at a reduced power of 130 MWe.[5]

See also

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References

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  1. ^abcPHENIX.
  2. ^Phenix Nuclear Power Plant Dismantling Start.CEA, 9 Jan 2015
  3. ^Demantelement de la centrale Phenix.CEA, 14 March 2013 (French)
  4. ^Schneider 2009,p. 36.
  5. ^abSchneider 2009,p. 38.
  6. ^Rapin, M.; Barclay, F. J.; Allardice, R. H. (28 June 1990). "The Economics of Fast Breeder Reactors".Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences.331(1619): 435–443.
  7. ^Liquid Metal Cooled Reactors: Experience in Design and Operation(Technical report). International Atomic Energy Agency. December 2007. p. 57.
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