Reactor1 temperature rised after nitrogen gas injection

Since 5/14/2013, Fukushima Diary has been reporting the unusual increase of temperature in reactor1.

(cf, Reactor1 reaching 49℃, increased by 3℃ within 24 hours [URL])

On 5/17/2013, Tepco reported the temperature increased just after they injected nitrogen gas into PCV.

(cf, Tepco to restart nitrogen gas injection into reactor1 [URL 2])

However last year, reactor1 temperature decreased when they injected nitrogen gas, which is the opposite reaction from now.

According to the minutes of mid/long term Fukushima measures meeting held on 10/22/2012, Tepco is aware of this strange connection between nitrogen gas injection and the temperature but doesn’t know how it affects.

(cf, Tepco reported they don’t know why nitrogen injection decreases the temperature of reactor1 [URL 3])

http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130517_07-e.pdf

Iori Mochizuki

I appreciate your support.
Registration of Fukushima Diary headquarters is completed.

Tepco “Shortage of Fukushima workers caused the leakage”

_____

Français :

La température du réacteur 1 a augmenté après l’injection d’azote

Depuis le 14 mai 2013, le Fukushima Diary rapporte l’augmentation inhabituelle de la température du réacteur 1. (cf. Le réacteur 1 atteint les 49°C, une montée de 3° en 24 heures)

Le 17 mai 2013, Tepco publié que la température a augmenté juste après qu’ils aient injecté de l’azote dans la PCV. (cf. Tepco relance les injections d’azote gazeux dans le réacteur 1)
L’an dernier cependant, la température du réacteur 1 avait diminué lorsqu’ils avaient injecté de l’azote, c’est l’inverse actuellement.
Selon les minutes de la rencontre sur les mesures à moyen et long termes pour Fukushima qui s’est tenu le 22 octobre 2012, Tepco est attentive à ce lien étrange entre l’injection d’azote et la température mais ils ne savent pas comment ça se passe. (cf. Tepco rapporte qu’ils ne savent pas pourquoi les injection d’azote font baisser la température du réacteur 1)

http://www.tepco.co.jp/en/nu/fukushima-np/handouts/2013/images/handouts_130517_07-e.pdf

Merci pour votre soutien.
L’enregistrement du siège du Fukushima Diary est terminé.

One Comment

Sickputer says:

May 18, 2013 at 12:16 pm

Maybe the culprit leading to increased “heat” detection is indeed the gas as it stirs up oxidized fuel dust and raises radioactive circulation around the heat monitors. Beware the Blobs at Chernobyl is still a great hazard:

An excellent article from Steve Featherstone last year about Chernobyl with information of interest to Fukushima researchers:
http://m.popsci.com/science/article/2012-06/chernobyl-now

Excerpts: “we can expect a nuclear meltdown to occur every six years on average”
Page 2: “During the meltdown, the nuclear fuel in Chernobyl’s core turned into slag hot enough to burn through four feet of concrete and steel. The slag flowed like lava down steam pipes into the floors below, where it solidified into glassy black blobs straight out of a science-fiction movie.

Scientists categorize these blobs as “fuel-containing materials,” or FCMs. About 200 tons of extremely radioactive FCMs are buried in the rubble of Unit 4, and they are the source of plutonium-laced “fuel dust.””
“Many basement rooms are knee-deep in water that, as it evaporates, causes FCMs to oxidize and shed tiny particles of fuel dust into the air. Scientists estimate that the Shelter contains 33 tons of the stuff, a daily hazard and a disaster in the making.”

Page 4: “Nuclear and radiological waste cannot be “cleaned up.” It cannot be eradicated. It can only be sealed in drums or concrete coffins and moved from one place to another, or buried in pits and surrounded by razor wire. In fact, no one yet has a plan for what to do with the FCMs.”

SP: I guess the same scenario is playing out in the basement and reactor bowels of Units 1-3 in Fukushima Daiichi. No substantial progress will be made at stabilizing those three units until a huge steel dome like the new one planned at Chernobyl. But don’t hold your breath waiting for that kind of project to be built at Fukushima. There is no global desire to expend trillions of dollars at Fukushima. Japan will suffer great health and death losses, the Pacific Ocean will continue to build up contaminated food for humans, but the leaders of industry do not care. It’s just the cost of doing business.

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Reactor1 temperature rised after nitrogen gas injection

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