Fugen Nuclear Power Plant
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|Fugen Nuclear Power Plant|
|Construction began||May 10, 1972|
|Commission date||March 20, 1979|
|Decommission date||March 29, 2003|
|Operator(s)||Japan Atomic Energy Agency|
|Nuclear power station|
|Units decommissioned||1 x 165 MW|
|Nameplate capacity||165 MW|
|Annual net output||345 GW·h|
|Commons||Related media on Commons|
Fugen ふげん (Fugen) was a prototype Japanese nuclear test reactor. Fugen was a domestic Japanese design for a demonstration Advanced Thermal Reactor. It was a heavy water moderated, boiling light water cooled reactor. The reactor was started in 1979 and shut down in 2003. As of 2018, it is undergoing decommissioning. It is located in Myōjin-chō, in the city of Tsuruga, Fukui. The name "Fugen" is derived from Fugen Bosatsu (Samantabhadra), a Buddhist deity.
- Core temperature: 300 °C
- Pellet centerline temperature: 2200 °C
- Fuel conversion time: 6 months
The plant is located on a site that covers 267,694 m2 (66 acres); buildings occupy 7,762 m2 (1.9 acres), and it has 46,488 m2 of floor space. It employed 256 workers.
- 14–16 April 1997: A tritium leakage was announced to the responsible authorities 30 hours after the event. During the following investigation it was shown that it already had 11 similar incidents. Five managers of the operator at that time (at the time Power Reactor and Nuclear Fuel Development Corporation) resigned.
- 8 April 2002: About 200 cubic meters of steam escaped from a defective pipe. The reactor was switched off.
During dismantling operations it was found that walls with controls did not have the necessary strength at 25 of 34 points.
- "History of Fugen | Reactor Decommissioning Research and Development Center". www.jaea.go.jp. Retrieved 10 July 2018.
- JAEA (Japanese). Facilities Quick View Archived 2012-04-20 at the Wayback Machine.
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