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The IAEA's latest update has this:
http://www.iaea.org/newscenter/news/tsunamiupdate01.html
The indicated temperature at the feed water nozzle of the RPV of Unit 1 has decreased from 323°C to 281°C and at the bottom of RPV remained stable at 134°C. There is a corresponding decrease in Drywell pressure.
At Unit 2 the indicated temperature at the feed water nozzle of the RPV has increased from 154°C to 177°C and at the bottom of RPV has increased from 78°C to 88°C. Indicated Drywell pressure remains at atmospheric pressure.

So Unit 2 drywell pressure is at atmospheric pressure (whereas Unit 1 is not).

What's that all about then? Does that mean reactor 2 isn't airtight now?

by LondonAnalytics (Andrew Smith) on Wed Mar 30th, 2011 at 04:56:39 PM EST
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