Saturday, January 14, 2012

#Fukushima I Nuke Plant Reactor 2: 116 Degrees Celsius at the RPV Bottom

Some "cold shutdown". But you see, the thermometer that "determines" the state of cold shutdown is not this particular one that exceeded 100 degrees Celsius. So everything is fine and dandy at Fuku I. (Forget the leaks here and there, and trenches full of contaminated water.)

From Kyodo News (1/13/2011):


TEPCO announced on January 13 that one of the thermometers near the bottom of the Reactor Pressure Vessel of Reactor 2 at Fukushima I Nuclear Power Plant registered the temperature exceeding 100 degrees Celsius. The nearby thermometers show a steady temperature between 40 to 50 degrees Celsius, so TEPCO considers it as malfunctioning.


According to TEPCO, the thermometer that showed the high temperature is the one attached to the pipe that contains the equipment to operate control rods. It was 48.4 degrees Celsius at 5PM on January 12. It rose sharply at 11PM to 102.3 degrees Celsius, and at 5AM on January 13 it registered 116.4 degrees Celsius.


The thermometer that measures the temperature at the bottom of the RPV shows stable 48 degrees Celsius. That measurement is used as determining the cold shutdown state. TEPCO thinks it is unlikely that the melted fuel has shifted or the recriticality is happening.

So far I cannot find TEPCO's press release on this.


Anonymous said...

Well, shit. Do post that release if you find it, please.

Viola said...

It's a bit hidden, that information... Go to
and then to "Summary of each power stations". You may have to scroll up or down a bit...

Anonymous said...

Wanted: Another definition for Cold Shutdown.

Blame it on faulty equipment/readings.
Change Parameters.
Feign ignorance.

Contact: Any Federal U.S. Official or Japanese
Government Official.

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