What exactly has been implemented? Do you have links?
Look at page 21 at the Areva Document http://fairewinds.com/sites/default/files/AREVA%20Fukushima.pdf
There you can see venting into the containment. And you can read "Release of unfiltered venting?"
Does Dr. Matthias Braun from the...
Is there any information, whether they installed the "direct torus vent system" in Fukushima (unit 1,2 3) or not?
For "direct torus vent system" look at: http://www.nirs.org/factsheets/bwrfact.htm
How about:
http://www.ic.unicamp.br/~stolfi/EXPORT/projects/fukushima/plots/2011-04-04-060000/Main.html
Or
http://www.ic.unicamp.br/~stolfi/EXPORT/projects/fukushima/plots/
Ok, that's the Areva PowerPoint.
At Page 12 the are data for the Batteries for two Units.
Unit 1 runs out of Batteries on 11. at 16:36 ! Much less then the 8 hours battery capacity!
And at Unit 3 they reached march 13. at 2:44! Much much more than the 8 hours.
And there is no source mentioned...
I looking for more details for the first hours and days.
When did the diesel generators fail? When did the batteries run out of power? When stopped the emergency cooling for each unit? When exactly did they start venting? etc. etc.
Some of that information (eg. about the diesel generators)...