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Rive
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And in the same time you are talking like as if Uranium would be the main concern there.nikkkom said:Yes.
And in the same time you are talking like as if Uranium would be the main concern there.nikkkom said:Yes.
Hiddencamper said:What are you talking about. TMI2 corium having weapons grade plutonium. That's pretty bogus.
HowlerMonkey said:It will likely heat up if there weren't a ton of water being circulated.
At this point it's not so much about temperature, it's more about keeping stuff wet to reduce airborne contamination and holding fission products in the liquid. Letting stuff dry out is a great way for stuff to potentially go airborne. Water also provides shielding.HowlerMonkey said:It will likely heat up if there weren't a ton of water being circulated.
Before we knew how the stuff actually deposited it was said here that water is needed because there are configurations which limits cooling, so we can't guarantee the temperature without active cooling.Hiddencamper said:At this point it's not so much about temperature
TMI had far less stuff melt together, without being embedded into a flow-blocking substance.nikkkom said:Let's compare it to TMI:
Rive said:TMI had far less stuff melt together, without being embedded into a flow-blocking substance.
Man, take a look at any picture about the final configuration of the TMI reactor internals and give some deep thoughts about convection and surface.nikkkom said:Wrong. TMI-2 had all "stuff" tightly packed in one place (RPV)
Rive said:Man, take a look at any picture about the final configuration of the TMI reactor internals and give some deep thoughts about convection and surface.
Sotan said:http://photo.tepco.co.jp/library/180316_01/180316_02.JPG
A glimpse inside the cover newly installed over the operating floor of Unit 3 building.
Photo taken during a visit of the US Ambassador to Japan on March 16.
nikkkom said:Any info how the floor's contamination was removed or shielded? There are some removable shields installed (e.g. concrete blocks), or they resurfaced it?
nikkkom said:Any info how the floor's contamination was removed or shielded? There are some removable shields installed (e.g. concrete blocks), or they resurfaced it?
Greg Bernhardt said:Part 1 can be found here:
https://www.physicsforums.com/showthread.php?t=480200Magnitude-5.3 earthquake hits Japan's Fukushima
http://www.usatoday.com/story/news/world/2013/09/19/japan-fukushima-nuclear-plant/2835493/
zapperzero said:What is the reason for thread closure, please?
Greg Bernhardt said:Not closed, moving to part 2. After 14k posts it becomes a system performance issue.
Stephenk53 said:Since it is at 16k I suggest moving to part 3
krater said:Off by an order of magnitude.
I have to think it's largely cultural... at the end of World War Two we sent Edward Demming over there to teach 'statistical product quality administration'.etudiant said:It would be useful to look at the contractual details, including the performance incentives, that are yielding such different outcomes.
jim hardy said:I have to think it's largely cultural... at the end of World War Two we sent Edward Demming over there to teach 'statistical product quality administration. They established a business culture of "doing things well" .
But back home we ,... well..; have you ever seen that old movie "how to succeed in business without really trying" ?
Wow so somebody got through.. Not much they could've done in four days, though.etudiant said:Not sure whether this alters the legal landscape, but apparently TEPCO executives told the regulators 4 days before the accident that the plant would be swamped in the event of a 15 meter tsunami. That tsunami estimate had been developed as part of an independent study earlier when TEPCO was considering building a seawall., but then decided not to proceed. A multi hundred billion dollar mis-judgment in retrospect.
jim hardy said:Wow so somebody got through.. Not much they could've done in four days, though.
That's quite an interesting article. I don't know how i missed your post.etudiant said:Asahi Shimbun reported on April 11 2018. http://www.asahi.com/ajw/articles/AJ201804110051.html
Can you imagine ? He must feel worse than captain of Titanic.etudiant said:A multi hundred billion dollar mis-judgment in retrospect.
Great find Cire, thank you.Cire said:Our first good view of what happened under the RPV.
http://www.asahi.com/ajw/articles/AJ201804270041.html
HowlerMonkey said:TMI-2 didn't suffer a 9.0 earthquake.
nikkkom said:The massive regulatory/bureaucratic machine produced thousands upon thousands of pages on safety, and yet the recipe for handling the meltdown seems to be: "seal the reactor shut to avoid leaks of radioactive materials... and then pump water into it to cool it down". No one saw any problems with this idea? Really?
Charles Smalls said:I think when you design and sell a plant based on the notion that it is too safe to fail...
... once you bill a system as 100% safe and reliable even if something goes wrong...
... They sold it as fool proof ...