[Reactor2] Tepco is having a difficulty to install a new RPV thermometer

Every time Tepco measured extreme change of PCV temperature, they concluded that the thermometer was out of order historically.

They have few sound thermometers left at this moment, they are seeking the chance to install alternative RPV thermometer in reactor2, but apparently it is very difficult.


– In order to confirm the soundness of the pipe to which the RPV alternative thermometer will be installed, water was flushed from the temporary pump through the pipe (July 12).

– Since the pressures of the temporary pump and the temporary pressure gauge increased after flushing approx. 15L of water, the pressures have been monitored.

-The pressure went down to 148kPa, however it is taking time for the pressure to stabilize. The temporary pressure gauge reading today was approx. 100kPa, which is lower than yesterday.

-Based on the above, it can be assumed that some parts of the SLC differential pressure detection pipe may be clogged. Tepco will evaluate this in detail and consider how thermometer installation can
be done.


[Reactor2] Tepco is having a difficulty to install a new RPV thermometer


[Reactor2] Tepco is having a difficulty to install a new RPV thermometer 2





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.


July 2012