No temperature change in reactor1 after reducing nitrogen gas into the PCV

Following up this article..Tepco to finally investigate why reactor1 temperature goes up when they stop nitrogen gas injection [URL]

According to Tepco, they are reducing the nitrogen gas volume to PCV (from 22Nm3/h to 12Nm3/h) and increased it to RPV instead (from 14Nm3/h to 24Nm3/h).

By 12:00 PM of 6/20/2013, no significant change in temperature has been observed for some reason.

It’s still not verified how nitrogen injection is affecting the temperature.

No temperature change in reactor1 after reducing nitrogen gas into the PCV

 

2 No temperature change in reactor1 after reducing nitrogen gas into the PCV

 

http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130620_03-e.pdf

 

 

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Français :

Aucun changement de température dans le réacteur 1 après réduction de l’azote dans sa PCV

 

(Ndt: PCV = Primary Containment Vessel = Enceinte de confinement primaire ; RPV = Reactor Primary Vessel = Enceinte de confinement (du cœur) du réacteur => La RPV est incluse dans la PCV.)

Article lié : Tepco va finalement chercher pourquoi la température du réacteur 1 augmente quand ils arrêtent d’injecter de l’azote

Selon Tepco, ils vont réduire les volumes d’azote injecté dans la PCV1 (de 22 à 12 Nm³/h) et l’augmenter dans la RPV1  (de 14 à 24 Nm³/h).
Le 20 juin 2013 vers minuit, aucun changement significatif de température n’était constaté.
On ne sait toujours pas comment les injections d’azote influent sur la température.

No temperature change in reactor1 after reducing nitrogen gas into the PCV
2 No temperature change in reactor1 after reducing nitrogen gas into the PCV

http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130620_03-e.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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