Reactor 1 goes over 100℃ within 8 hours without nitrogen injection

The temperature of reactor 1 was increased from 48℃ to 54.4℃ when the nitrogen injection stopped (90 mins) on 4/4/2012, Tepco stated in their press conference of 4/7/2012.

On 4/4/2012, because of the strong wind of storm, the nitrogen injection was stopped. [Link]

Though nitrogen is not supposed to decrease the temperature, reactor 1 was heated from 48℃ to 54.4℃ for 1 hour and 30 minutes.

On the assumption that the temperature is increased in a linear manner, it would reach 100℃ from 48℃ in 8 hour and 8 minutes.

They restarted nitrogen injection by using the back-up unit on 4/4/2012, but the back-up unit stopped on 4/7/2012.[Link]

They restarted the unit which stopped on 4/4/2012 again to restart the nitrogen injection.





↓ 14:00~

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.


April 2012