Tepco announced to inject N2 into S/C of reactor1 but the flow rate of N2 didn’t change and only hydrogen gas increased

Posted by Mochizuki on January 9th, 2013 · 1 Comment

According to Tepco, they restarted the injection of nitrogen gas into suppression chamber of reactor1 at 10:37 of 1/8/2013.
The purpose was to investigate the process of hydrogen produced by water radiolysis.
However, their plant parameter is not showing any increase of flow rate of nitrogen gas injection into PCV. 
On the other hand, the hydrogen concentration is increasing, which was anticipated if they really injected nitrogen gas into suppression chamber.

 

↓ The flow rate of nitrogen gas is flat, where Tepco announced they restarted the gas injection into suppression chamber. However, hydrogen gas is detected probably pushed up by nitrogen gas.
Tepco announced to inject N2 into S/C of reactor1 but the flow rate of N2 didn't change and only hydrogen density increased

Source 1 2

 

 

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Français :

Tepco annonce injecter du N² dans la CS1 mais le débit de N² n’a pas changé, seul l’hydrogène augmente

Selon Tepco, Ils ont repris les injections d’azote gazeux dans la chambre de surpression su réacteur 1 le 8 janvier 2013 à 10:37.
Le but était d’enquêter sur le processus qui produit de l’hydrogène par radiolyse de l’eau.
Ceci étant, leurs paramètres usine ne montrent aucune augmentation de débit d’injection d’azote dans l’enceinte primaire de confinement (PCV).
D’un autre côté, la concentration d’hydrogène augment; ce qui était anticipé s’ils avaient réellement injecté de l’azote dans la chambre de surpression.

↓ Le débit de l’azote est plat, alors que Tepco annonce qu’ils ont relancé l’injection du gaz dans la chambre de surpression. L’hydrogène gazeux détecté est probablement celui poussé par l’azote gazeux.
Tepco annonce injecter du N² dans la CS1 mais le débit de N² n'a pas changé, seul l'hydrogène augmente

Sources : 1 2



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One Response to “Tepco announced to inject N2 into S/C of reactor1 but the flow rate of N2 didn’t change and only hydrogen gas increased”

  1. Jay says:
    January 9, 2013 at 5:54 pm

    Amazing catch Iori ! I didn’t see that pointed out anywhere , yet .
    Great job , back-up the files !

    Are we seeing here the first effects of structural deterioration happening without any further ‘help’ from earthquakes or tsunamis ?

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