I think there are a few people who have an erroneous mental image of where these so-called "basements" are under the reactor buildings (not talking about the turbine or other support buildings here, only the reactor buildings proper).
Once again, there are not excavated underground rooms or...
Discredited. Fantastical rumor mongering and unsubstantiated speculation. If the site had paid advertisemets it would be the Fox News of Fukushima. But there are no ads there so it's more like Tinfoil Central.
Hey, Nancy, is building 4 still leaning? What do your inside on-site sources say?
My WAG is that between 15 and 20 years will be required. Assuming the reactor buildings survive that long. One would hope that structural engineers have been analyzing them and carefully considering each's chance of survival for however long they think it's going to take given typhoons and the...
I think one of the "lessons learned" that everyone should take away from this mess going forward, is that regular "more complete gamma analyses" need to be done and the results publicized in any future incidents. TEPCO has routinely provided monitoring reports ONLY on I-131, Cs-134 and Cs-137...
My thanks to tsutuji as well. Without his valuable contributions this thread would be dead and buried by now. Instead, it continues to be a source of good up-to-date information regarding the Fukushima NPPs.
The linked newsletter does mention those points on page 8, but that photo does not appear in the newsletter at all. What that photo displays IMO is nothing more than optical distortion.
What document is that from?
There is a lot that is unknown about thermal properties during a core melt event.
http://www.tec-sim.de/images/stories/lecturenotes-late-in-vessel-phenomena.pdf
On page 16 of that document:
There is the distinct possibility that molten material relocated out of...
NUCENG, you are one of the bright lights in this thread. It has been said that a man's ability to understand something is directly affected by his paycheck depending on him not understanding it. You have consistently shown a willingness to be open-minded and willing to suffer the slings and...
It's hard to say what the whitish structures are. Obviously they've got cranes on them. My guess is they're special equipment needed for the core shroud replacement work, and wouldn't appear in the original blueprints at all. Regardless, they could have been drawn in overlaid on the floor plan...
That is more or less my take on it as well. We know the cap is on the west side of the floor, so the camera pointing north makes sense. The damaged roof at the north side also fits the external photos we've seen. The equipment pool is likely the farthest thing away in the picture, extending back...
Fuel cask drop. Like a drydock for fuel assembly shipping casks. With all due respect to TCups, his contention that there was a separate small pool for the processing of fuel for shipping, was incorrect. I miss TCups' contributions nonetheless.
Yes it is a very useful photo. I'd love to see all the other photos they took on their little fact-finding mission to the 5th floor. Unfortunately we've gotten to the point - have been there for quite some time actually - where radiation isn't the only thing TEPCO is trying to contain.
Thanks, but those are hardly new. The drawing of the refueling floor in Unit 4 is new and finally confirms the layout of the reactor well, the SFP and the oblong equipment pool. A lot of what we had surmised about the layout is now confirmed.
In the same pdf, I'm having trouble placing the...
Hallelujah we finally have an official TEPCO diagram for the refueling floor at unit 4. Very interesting pictures. How very strange to see the reactor well open to the sun and sky looking like a large swimming pool.