Reactor 2 may be over 90℃

Reactor may be 90℃, not 70℃.

Cold shut down is based on the assumption that the heat gauge has 20℃ of error.
The definition of “cold” shut down is when the bottom of the temperature is below 80℃ because it may be 100℃ taking the error into consideration.

A Japanese independent journalist tweeted like below.

@sayakaiurani
うちゃか。
あれ?2号機95度って聞いてるけど?まだ70とか言ってんの?内部は95で焦ってるよ? Source
<Translate>
What ? I heard that reactor 2 is 95℃. Are they still saying it’s 70℃ ? People inside of Tepco is pressed to say it’s already 95.
<End>

@sayakaiurani
うちゃか。
騙されてるとゆーか、内部の温度計は一部分にだけ設置、かつ性能は普通なため、プラマイ20度の違いはあるわけです。あとは煙の量などから判断するわけですが。今現在は85度以上になっており、煙も多く出ていることからゆうに95度はあると判断しているようです。ただその情報がすぐに国民に Source

@sayakaiuraniうちゃか。
届かないってシステムが問題なんですけどね。でもRT量やQT煽り操作から見たら、やたら現状を公表するのも危ないのかなとか思ったりもします。でも知る権利はありますしね。むずかしいところです。Source

<Translate>

The heat gauge is not enough, and it has error of 20℃, so they assume the temperature from the amount of smoke as well. but the gauge is actually showing over 85℃, and lot of smoke is coming up. They therefore seem to judge it’s over 95℃.

The problem is, the data is not published to the people. However, because a lot of people are wanting to know that, they shouldn’t publish the data maybe. but we have the right to know. It’s difficult.

<End>

Source

毎日新聞 2011年11月9日 21時21分
東京電力は9日、福島第1原発で事故収束への工程表の「ステップ2」終了後、中期的に安全性を確保する計画書を経済産業省原子力安全・保安院に再提出。冷温停止を判断する原子炉圧力容器の温度計は、誤差が約20度あるとの評価結果を盛り込んだ。

政府と東電は、原子炉の安定的な「冷温停止」状態は、圧力容器下部温度が100度以下を条件にしている。東電の松本純一原子力・立地本部長代理は「温度が80度を下回っていれば、不確かさを考慮しても100度以下を達成していると言える」と述べた。

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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