dedeleco a écrit :Si vous voulez voir l'état actuel du réacteur 4 à Fukushima, regardez cette vidéo, avant qu'elle ne disparaisse, cette vidéo :
Fukushima No.4 reactor building opened to media
http://www3.nhk.or.jp/daily/english/20120526_20.html
Juste pour convaincre que cette piscine ne peut pas s'écrouler, à plus de 10m de haut à 3 à 4 étages démolis, et donc qu' une catastrophe future bien pire que Tchernobyl est impossible !!
At approximately 06:00 JST on 15 March, an explosion damaged the 4th floor rooftop area of the Unit 4 reactor as well as part of the adjacent Unit 3.[9][10] The explosion is thought to be caused by the ignition of hydrogen that had accumulated near the spent fuel pond, the hydrogen was initially thought to have come from the stored fuel rods, but later, TEPCO believed the hydrogen came from Unit 3.[11] Later reports from the US Nuclear Regulatory Commission speculated that fuel could have been ejected from the Unit 4 spent fuel pond during this explosion.[12] Later on the morning of 15 March, at 09:40, the Unit 4 spent fuel pool caught fire, likely releasing radioactive contamination from the fuel stored there.[13][14] TEPCO said workers extinguished the fire by 12:00.[15][16] As radiation levels rose, some of the employees still at the plant were evacuated.[17] On the morning of 15 March, Secretary Edano announced that according to the TEPCO, radiation dose equivalent rates measured from the Unit 4 reached 100 mSv/h
As of 25 April, TEPCO was still pumping between 70 and 210 tons of water into the pool, varying the amounts depending on the temperature in the pool. TEPCO also reported that it was attempting to minimize the amount of water added to the pool for fear "the weight of the water could weaken the reactor building".[50] On 28 April, TEPCO announced it believed that water was not leaking from the pool but only evaporating. TEPCO based its belief on calculations that the heat generated by the spent fuel stored in the pool would be expected to evaporate 140 to 210 tons of water daily, in line with the amount of replacement water it adds.[51] On 9 May, TEPCO began work to install a supporting structure for the Unit 4 spent fuel pool, due to the concerns that explosions could have weakened the structure.[52]
On 21 June the first stage of strengthening at the second floor in the building under the pool was finished: 32 steel columns 8 meters long with a weight of 40 tons each were placed at the second floor.[54] By 30 July, the concreting of the supporting columns was completed.[55]
netshaman a écrit : la fusion est un echec, y'a pas photo !
Maximus Leo a écrit :Le site cryptome.org est plus fiable que la NHK qui est une chaîne généraliste. Voici des images du 26 mai lors de la visite du ministre Osono :
http://cryptome.org/2012-info/daiichi-1 ... 2-0526.htm
Il me semble bien que la piscine ronde est celle du réacteur ouvert. Elle est juste à côté de la piscine rectangulaire de stockage.
dedeleco a écrit :Maximus Leo a écrit :Le site cryptome.org est plus fiable que la NHK qui est une chaîne généraliste. Voici des images du 26 mai lors de la visite du ministre Osono :
http://cryptome.org/2012-info/daiichi-1 ... 2-0526.htm
Il me semble bien que la piscine ronde est celle du réacteur ouvert. Elle est juste à côté de la piscine rectangulaire de stockage.
Oui, mais la ronde a été réduite ou supprimée semble t'il ?.
The operator of the damaged Fukushima Daiichi nuclear plant has decided to remove 2 unused fuel rods from a storage pool at the No. 4 reactor to look for damage.
This is in preparation for the removal of a large number of the 1,535 used and unused fuel rods stored in the pool, which could pose a threat in the event of another earthquake.
Tokyo Electric Power Company intends to remove the 2 fuel rods from the pool in July. Removal of unused fuel is not as dangerous as taking out used fuel.
If successful, TEPCO plans to start to remove the remainder of the fuel next year.
The No. 4 reactor did not experience a meltdown when the massive quake and tsunami hit last year because it was off line. But areas near the pool were heavily damaged when hydrogen from No. 3 reactor entered No. 4 reactor and exploded.
Additional reinforcement work is being carried out inside the reactor because of continuing concerns about the strength of the pool.
On Saturday, TEPCO allowed media representatives to visit the inside of the No.4 reactor building for the first time.
Fmr manager caught for mislabeling Fukushima beef
Japanese police have arrested a man on suspicion of putting false labels on beef products from Fukushima Prefecture. The prefecture hosts the damaged nuclear plant.
Hiroshi Kutsukake is accused of selling mislabeled beef at a supermarket meat shop in Osaka, western Japan, in February.
Police say the former shop manager has admitted to the charges, saying he did it because the supermarket asked him to specify where the meat came from and he thought customers wouldn't buy Fukushima beef.
Previously, the shop's beef products had been identified simply as either domestic or imported.
Last month, the agriculture ministry ordered the shop's operator to label beef products correctly after the shop was found to have falsified the origin of 1.4 tons of beef.
May 28, 2012 - Updated 07:41 UTC (16:41 JST)
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