Tepco struggling to control the coolant system, “Adjusted the valves 7 times for 2 days”


On 8/30/2012, the injection water for reactor 1~3 decreased all of a sudden. (cf. Sudden decrease of injecting water for reactor1~3, cause not known)
Tepco announced they fixed it but the sudden decrease of water injection happened once again on the same day.
Even on 8/31/2012, It’s still decreasing intermittently but they haven’t verified the reason yet.

Tepco adjusted the valves twice on 8/30/2012, but because the trouble was still going-on, they adjusted the valves 5 times from 0:00 to 15:00 of 8/31/2012.
According to Tepco’s report, water temperature has not changed. Because no water leakage is confirmed, they presume trashes are stuck in the valves to control water amount. They are to clean the inside of the valves.



↓ Tepco’s handout about injection water amount and temperature. [Link]

Tepco struggling to control the coolant system, "Adjusted the valves 7 times for 2 days"




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.