Reactor2 temperature spiked up by 30℃ after M5.5 of 4/14/2013, Tepco “The thermometer has low credibility”

According to Tepco, one of the thermometers of reactor2 indicated the spiking up of temperature after the major earthquake of 4/14/2013.

The location of the thermometer is RPV bellows seal area.

At 22:25 of 4/14/2013 (JST), M5.5 hit offshore Fukushima. The maximum seismic intensity was 4.

At that time, no plant damage was reported.

However, the thermometer indicated the temperature jumped up from 240 ℃ to 270 ℃. Tepco states the credibility of the thermometer is low, which can be used only as a reference.

 

Reactor2 temperature spiked up by 30℃ after M5.5 of 4/14/2013, Tepco "The thermometer has no credibility"

 

2 Reactor2 temperature spiked up by 30℃ after M5.5 of 4/14/2013, Tepco "The thermometer has no credibility"

 

http://www.tepco.co.jp/cc/press/betu13_j/images/130501j0501.pdf

 

 

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La température du réacteur 2 monte de 30°C après le séisme M5,5 du 14 avril 2013. Tepco: Le thermomètre n’est pas très fiable

 

Selon Tepco, un des thermomètres du réacteur 2 a indiqué une montée de température après le séisme majeur du 14 avril 2013.

Ce thermomètre est dans la zone des soufflets d’étanchéité de la RPV.
Le 14 avril 2013 à 22:25 (JST), un M5.5 frappe au large de Fukushima. L’intensité sismique maximum était de 4.
Aucun dégât n’avait été rapporté à ce moment-là.
Ce thermomètre a cependant indiqué que la température est montée de 240à 270 °C. Tepco affirme que la fiabilité de ce thermomètre est faible, qu’il ne peut être utilisé que comme référence.

La temperature du réacteur 2 monte de 30°C après le séisme M5,5 du 14 avril 2013. Tepco: Le thermomètre n'est pas très fiable
2 La temperature du réacteur 2 monte de 30°C après le séisme M5,5 du 14 avril 2013. Tepco: Le thermomètre n'est pas très fiable

http://www.tepco.co.jp/cc/press/betu13_j/images/130501j0501.pdf

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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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