Fukushima Diary

Related to this article – Water level was only 60cm from the bottom in reactor 2

It was 60cm in reactor 2, but it is worse in reactor 1. Japan nuclear energy safety organization analyzed the water level from the connection of the amount of nitrogen injected to PCV and the air pressure of PCV.

The result is that the water level is only 40cm from the bottom of the container vessel though they inject 6 tones of water per hour.

The pipes to connect PCV and torus room got holes of several cm diameter. All the water injected leak from the holes and flow into the basement floor of the reactor building. It flows to the basement floor of the turbin building beside the reactor building through the pipes and cables.

The thickness of PCV is 30mm, but the pipes to torus room are only 7.5mm thick. Tepco used to assume the water level was 1.8m but it turned out to be wrong as always. Tepco plans endoscope operation to know the temperature of inside of the PCV by the end of this year.

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