Coolant system of Reactor 2 pool stopped / “Someone turned off a related switch”

On 11/27/2014, coolant system of Reactor 2 pool suddenly stopped, according to Tepco.

Approx. 5 hours later, Tepco managed to reboot the system. Pool water temperature was 16.7 ℃ when it was stopped. Tepco reported it was 17.3 ℃ when the system was rebooted.

Reactor 2 pool stocked 587 spent fuel assemblies and 28 new fuel assemblies.

 

Tepco announced it was because one of the related systems called air compressor was turned off for unknown reason. Currently they are investigating the cause why it was turned off and by whom.

 

↓ The air compressor turned off as not planned.

Coolant system of Reactor 2 pool stopped : Someone turned off a related switch

 

 

↓ The switch of the air compressor

2 Coolant system of Reactor 2 pool stopped : Someone turned off a related switch

 

 

http://www.tepco.co.jp/cc/press/2014/1244473_5851.html

http://www.tepco.co.jp/cc/press/2014/1244485_5851.html

http://www.tepco.co.jp/cc/press/2014/1244486_5851.html

http://photo.tepco.co.jp/date/2014/201411-j/141128-01j.html

 

 

_____

Français :

Le système de refroidissement du réacteur 2 est arrêté / “Quelqu’un a coupé un interrupteur relié”

 

Selon Tepco, le 27 novembre 2014 le système de refroidissement de la piscine du réacteur 2 s’est brusquement arrêté.

5 heures plus tard environ, Tepco a réussi à redémarrer le système. La température de la piscine était à 16,7 ℃ lorsqu’il a été arrêté. Tepco déclare qu’elle était à 17,3 ℃ au moment du redémarrage.
La piscine du réacteur 2 contient 587 assemblages de combustibles usagés et 28 assemblages neufs.

Tepco a déclaré que c’est parce qu’un système relié et nommé compresseur d’air a été éteint pour une raison inconnue. Actuellement, ils recherchent pourquoi il a été arrêté et par qui.

↓ Le compresseur d’air arrêté de façon imprévue.
Coolant system of Reactor 2 pool stopped : Someone turned off a related switch

↓ L’interrupteur du compresseur d’air.
2 Coolant system of Reactor 2 pool stopped : Someone turned off a related switch

http://www.tepco.co.jp/cc/press/2014/1244473_5851.html
http://www.tepco.co.jp/cc/press/2014/1244485_5851.html
http://www.tepco.co.jp/cc/press/2014/1244486_5851.html
http://photo.tepco.co.jp/date/2014/201411-j/141128-01j.html

About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.

Categories

November 2014
M T W T F S S
 12
3456789
10111213141516
17181920212223
24252627282930