[Column] Possibility of the enlargement of holes in reactor1

Fukushima Diary reported an unidentified decrease of the reactor water level in reactor1 compared to the volume of water to inject. (cf. Injected water to reactor1 is leaking to somewhere out of the reactor [Link])

As another problem with the reactor1, the reactor water level is becoming unstable increasingly.
The red line in the chart below is the gap (Fluctuation) of water level of every 6 hours. The blue line is the reactor water level.
You can clearly see the fluctuation is becoming larger since this September.

[Column] Possibility of the enlargement of holes in reactor1

These lines show the volume of water to inject in the chart below. It is not unstable adequate to explain the increasing fluctuation above.
2 [Column] Possibility of the enlargement of holes in reactor1

Since the volume of water to inject is not unstable, you must consider the possibility of the increase of water leakage.
As a result, there are three possibilities for the growing instability of water level, which is the water level indicator is being disordered, the hole(s) of the reactor is (are) enlarging, or both of them.





Français :

[Édito] Probable élargissement des trous dans le réacteur 1

Le Fukushima Diary avait rapporté la baisse inexpliquée du niveau de l’eau dans le réacteur 1 en comparaison avec les quantités d’eau injectées. (cf. L’eau injectée dans le réacteur 1 fuit quelque part en dehors du réacteur [Lien])

En tant que problème supplémentaire pour le réacteur 1, le niveau de son eau devient de plus en plus instable.
La courbe rouge du graphique ci-dessous est la variation (écart avec la mesure précédente) du niveau d’eau toutes les 6 heures. La bleue indique le niveau de l’eau.
On y voit clairement que les fluctuations sont de plus en plus grandes depuis septembre dernier.

[Column] Possibility of the enlargement of holes in reactor1Les courbes du suivant indiquent le volume d’eau injectée. Ce n’est pas assez instable pour expliquer l’augmentation croissante des fluctuations précédentes.
2 [Column] Possibility of the enlargement of holes in reactor1Puisque le volume d’eau injecté n’est pas instable, on doit considérer la possibilité d’une augmentation des fuites.
Par conséquent, on a trois possibilités pour expliquer l’instabilité croissante du niveau de l’eau, soit l’indicateur de niveau est en dérangement, soit le(s) trou(s) dans le réacteur est(sont) en train de s’agrandir, soit les deux.


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.


January 2013