Actual Fukushima worker concerns reactor can’t last so long

 

Following up this article ..Video of endoscope operation to reactor 2

Actual Fukushima worker Happy20790 concerns reactor can not last until they manage to take out the fuel debris. He tweeted about it on 1/20/2012.

Happy20790 ハッピー
ただいまっ(^O^)今日は昨日と違ってさぶかったでし(;_;)昨日の2号機の写真じゃよくわかんない部分が映像だとよくわかるでし。SUS配管の腐食はみられなかったけどカーボン配管の腐食はかなり進んでる。燃料デブリ取出し開始の10年後までは絶対にもたないと思う。Source

<Translation>

From the video of endoscope, SUS pipes were not so corroded but carbon pipes have gone so corroded. We are supposed to start taking out the fuel debris in 10 years from now but I bet it does not last so long.

<End>

Happy20790 ハッピー
続き1:PCV壁面の塗装もシステム7以上の仕様だけど塗装が浮き上がって壁面の腐食も進んでる。かなりの高温だったんだね。機器ハッチやエアロックはもっと薄いから心配なんだけど…。きっとゴムパッキンもダメだろうなぁ…。Source

<Translation>

The coating of the PCV wall is also being ripped off and the wall itself is very corroded though it’s better spec than system7. It must have been such a heat. Hatch of the operation control or airlock are even thinner so I’m worried about that too. I suppose rubber packing is also damaged..

<End>
Happy20790 ハッピー
続き2:あと上部からの落ちてくる水なんだけど、ドライウェル内の温度から考えて結露水にしては量が多すぎる感じがする。配管の破断もかんがえられるけど可能性は低いと思う。Source

<Translation>

The dripping water is too much for the temperature of dry well. feel like it’s not the evaporated water. It could be the pipes cut off, but it’s least likely.

<End>
Happy20790 ハッピー
続き3:オイラはどこか上部のフランジ部分が開いてるか、バルブのグランド部分やボンネットからの漏洩の可能性が高いと思うんだ。2号機は他の号機より謎が多く感じる。オイラは2号機の配管爆発も謎なんだよなぁ…。Source

<Translation>

I think some flange parts are opened in the upper part of reactor or grand parts of valve or bonnet are leaking water. There are a lot of the things I can’t figure out about reactor 2. For me, the explosion of the pipes of reactor 2 is a mystery too..

<End>
Tepco started endoscope operation from reactor 2 because it is the least damaged, but the worker tells even reactor 2 will not last until they take out fuel debris in 10 years from now. Also, he thinks the water dripping from the above is too much for evaporated water, there must be some open part because of damaged valve or bonnet.

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.

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