http://fukushima-diary.com/2012/05/fukushima-daini-was-submerged/
It looks like four more thermocouples inside the Reactor 2 Containment Vessel are failing:
Fukushima Daini was submerged
Posted by Mochizuki on May 30th, 2012 · 1 Comment
Following up this article..Possible melt-out in Fukushima Daini
Weekly Asahi reported Fukushima Daini was severely damaged by Tsunami and lost its coolant system as well.
Tepco related workers state, the reactor started overly heating, they ordered 700 hoses for the damaged coolant system.
Last May, Tepco announced reactor 3 and 4 were not damaged. However, Mr. Kirishima, a journalist to work in Fukushima Diani denies that.
A notice is put on the wall “This area is submerged on 3/11/2011. Up to 430cm from the floor.”
A notice is put on the wall “This area is submerged on 3/11/2011. Up to 430cm from the floor.”
Last December, Tepco admitted the basement floors of turbin buildings in reactor 1 ~ 3 were “flooded” in nuclear accident investigating report.
However, in the new report which Tepco published 3/11/2012, Tepco only states reactor 3 and 4 were not damaged, removed the statement about the flooding of the turbin buildings.
However, in the new report which Tepco published 3/11/2012, Tepco only states reactor 3 and 4 were not damaged, removed the statement about the flooding of the turbin buildings.
Additionally, last August, Tepco had made another report about the state of Fukushima Daini. In this report, Tepco states the flooding was because of the leaked water from surge tank, which was “freshwater”, 2nd floor underground was flooded all over.
“430cm” means it was not flooding, it was submerging.
東電発表に食い違い 「被害否定の福島第二原発も地震で壊れていた」
週刊朝日 5月27日(日)1時16分配信
昨年の東日本大震災で大きな被害はなかったと東電より発表されている福島第二原発だが、その発表と実際の状況は違うと、福島第二原発で働くジャーナリスト・桐島瞬氏は否定する。
週刊朝日 5月27日(日)1時16分配信
昨年の東日本大震災で大きな被害はなかったと東電より発表されている福島第二原発だが、その発表と実際の状況は違うと、福島第二原発で働くジャーナリスト・桐島瞬氏は否定する。
＊ ＊ ＊
東電関係者は当時の様子をこう語る。
東電関係者は当時の様子をこう語る。
「通信が途絶えてフクイチ（福島第一原発）で何が起きているのかよくわからない状況の中、フクニ（福島第二原発）の人間も原子炉の冷却系などが失われたことに危機を抱いていた。原子炉の温度が上がり、震災のあった夜中には、『注水用のホースを700本用意しろ』との指示が出たほとだ」
まさに、フクニも、危機一発だったのだ。
フクニ内で毎日、震災被害を目のあたりにし、東電の発表する内容が実際の状況と食い違うことがわかってきた。一例を挙げよう。
東電は昨年5月、フクニについて、「3、4号機タービン建屋は被害なし」と断定している。
いまさら、東電の発表をうのみにするかたも少ないとは思うが、階段の壁に紙が貼られ、そこには手書きでこう書かれている。
「2011・3・11（水没）床面より約430cm」
東電の発表では「被害なし」となっている場所に、4メートル以上の浸水があったことが明記されているのだ。
これを東電がどう説明しているか。昨年12月の「福島原子力事故調査報告書（中間報告書）」では、1～3号機タービン建屋の地下で浸水が確認されたことを認めた。だが、今年3月11日に発表した「福島第一原子力発電所この1年」では、「3／4号機タービン建屋は被害なし」と断定し、中間報告書で認めたはずの浸水被害がいつのまにか消えている。
さらに驚くべきことがある。東電が昨年8月に発表した「福島第二原子力発電所 東北地方太平洋沖地震に伴う原子炉施設への影響について」では、この被害が載っているのだが、「淡水の漏えい状況」として、漏水の原因を「サージタンクのオーバーフロー水がオーバーフローしたものと確認」と記載、「地下2階全域に浸水及び浸水跡を確認」している。
しかし、現実は「浸水」というより、「水没」である。タンクの水があふれかえったのはなぜなのか。津波とは無関係と言えるのか。
※週刊朝日 2011年5月4・11日合併号
and ever notice how when temps spike it's because the thermocouples are bad , not that temps are actually rising.....
WEDNESDAY, MAY 30, 2012
4 More Thermocouples May Be Going Bad in Reactor 2 at #Fukushima I Nuke Plant
It looks like four more thermocouples inside the Reactor 2 Containment Vessel are failing:
- return air drywell cooler(TE-16-114A)
- return air drywell cooler(TE-16-114D)
- supply air D/W cooler(TE-16-114F#1)
- supply air D/W cooler(TE-16-114H#1)
The locations of these thermocouples can be (sort of) figured out with this TEPCO document, as of April 25, 2012 (I put the red rectangles around the failing thermocouples):
TEPCO's handout for press, 5/29/2012 lists "Thermometers which indicated large fluctuation". Temperatures have been fluctuating in a meaningful way (increase or decrease in large steps) since May 28 (red rectangles added to indicate the large fluctuations; click on the table for a better image):
But do not worry. TEPCO has a plan to send human workers inside the Reactor 2 building again to somehow install new thermocouples. According to the reference document for the Working Group meeting on May 28, 2012 (pages 10 to 17), the installation work should start sometime in August, after the decontamination of the 1st floor of the Reactor 2 building is complete by mid July. The trial decontamination has already been done by the workers to compare different methods (strippable paint is most effective, so is the radiation shield), and they have just stated the actual decontamination in the environment where the highest radiation level is 4,400 millisieverts/hour (on the surface of the penetration X-34, near the location that TEPCO wants to insert a new thermocouple).
I don't know why there is no robot by now that can do such a work.
Unlike Reactor 4, where carbon-based human workers routinely enter and work in the radiation levels measured in microsievert/hour, Reactors 1, 2 and 3 have much higher radiation levels measured in millisievert or even sievert/hour. Upper floors of Reactors 1, 2 and 3 are too radioactive for human workers, and even the robot (Quince) was left stranded in Reactor 2's 3rd floor because of high radiation that precluded the rescue mission.
I don't know why there is no robot by now that can do such a work.
Unlike Reactor 4, where carbon-based human workers routinely enter and work in the radiation levels measured in microsievert/hour, Reactors 1, 2 and 3 have much higher radiation levels measured in millisievert or even sievert/hour. Upper floors of Reactors 1, 2 and 3 are too radioactive for human workers, and even the robot (Quince) was left stranded in Reactor 2's 3rd floor because of high radiation that precluded the rescue mission.
and......
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