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Interesting page of Chernobyl images

The supposed corium catcher or thick concrete that is the bottom center of the containment. How does that play a role?

@ lilly.. indeed it may.. however, we must realize that the chernobyl reactor was a copy of the N reactor that was located at the DOE site in hanford so the building design is very different and, in addition, the chernobyl reactor blew apart unlike fukushima... I would tend to think the corium at fuku would be somewhat more closely contained to areas beneath the reactor but would flow through the penetration seals etc so some would be in those areas.

@Dean I am assuming more corium would exist at Fuku since the core wasn't ejected as at Chernobyl? So with Fuku the corium would have burnt through or gone out penetrations down low. If it doesn't go straight down it could potentially go sideways via the supression chamber areas if it was already towards an edge vs. directly under the RPV?

I'm sure we could find something... maybe even on the chernobyl reactor... one thing is that the chernobyl reactor was built without a containment and other safety features that the N reactor had

@dean that is so messed up. :-)

be back.. I have to reboot..

what is a WBC car? www.jaea.go.jp

@elainekirk a whole body counter car

@Edano in the elevation drawing of the containment it shows a horizontal line at the level of the tube opening valve that goes to the torus. Is that a concrete pad inside the steel portion of containment or something else?

@Ian yes, of course, but not upwards from reactor bottom to torus connector.

this is the iaea report doc we were looking for
chapter 1 www.meti.go.jp
chapter 2 www.meti.go.jp
chapter 3 www.meti.go.jp

chapter 4 www.meti.go.jp
chapter 5 www.meti.go.jp
chapter 6 www.meti.go.jp
chapter 7 www.meti.go.jp
chapter 8 www.meti.go.jp
chapter 9 www.meti.go.jp

Grabbed the documents - out of the office for a few hours. Will check posts when I get back

thats it all 9 chapter s !!! brilliant gonna make coffee

back

TEPCO's secret 40 billion yen donations to local governments near nuclear plants - "We wanted to avoid criticism that we had collusive relations with local authorities" ajw.asahi.com www.scoop.it

Covert Nuclear Double-Cross - Kaieda, Matsumoto worked to undermine Kan's authority with Veitnam nuclear project ajw.asahi.com www.scoop.it

Fukushima disaster: Workers reveal they were in the dark about meltdown and radiation exposure limits

Many thanks to Ob_Li for translating this for us!

The original website : news.tbs.co.jp

Nuclear energy specialists team analyzed Fukushima Daiichi Nuclear Power Plant data and put together their opinions. It said “Although tsunami caused the power plants blackout, it wouldn’t have caused severe crisis like meltdown if it had been handled properly.” The massive tsunami attacked Fukushima Daiichi Nuclear Power Plant. #1
reactor completely lost the AC source. In the crisis like that, the isolation condenser, aka IC, which enables to cool off steam throughout the coolant inside of the tank and changes it into water, then put the water back into the reactor had to be utilized.
The specialist team of Professor Narabayashi of Hokkaido University and nuclear power plant product maker OB of 34 members started analyzing the publicized data provided by the government and TEPCO on their own terms and found out about the trouble of #1 reactor IC.
“Tsunami caused control console board shut down and that generated wrong signal. Because of this incident, the function conked out.” “It took more than 2 hours to realize the consol board shut down and restart it. During this event the reactor core got damaged and melt down started.”
The specialist team assume that initial mistake caused fatal damage, as the Fukushima Daiichi Nuclear Power Pland Director Yoshida was putting together the recovery plan without realizing IC shutdown.

“If only there had been a proper direction to fully utilize the IC while complete AC course loss, TEPCO might have been able to avoid reactor core meltdown. That’s too bad.” Reactor Engineering Professor Narabayashi of Hokkaido University The specialist team considers that the wrong crisis management caused lethal accident of #1, #2 and #3 reactor. “There wouldn’t have been severe accident like meltdown and hydrogen explosion even without AC source caused by tsunami, if TEPCO had handled the situation properly.”
TEPCO commented on this analysis and stated “No comment on this hypothesis theory.”
Source: news.tbs.co.jp news.tbs.co.jp www.scoop.it

@Edano it seems to be falling down around tepco