Published: April 14th, 2012 at 4:09 am ET
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Title: New photos show damaged fuel storage pool at Fukushima plant
Source: AJW by The Asahi Shimbun
Date: April 14, 2012
Tokyo Electric Power Co. on April 13 released photos showing extensive damage at the spent fuel storage pool of the No. 3 reactor [...]
Part of the refueling structure, including a crane that weighs 35 tons and is used to lift and move fuel rods, and a fuel storage rack appeared in the photos [...]
The refueling machine is believed to have fallen underwater after a hydrogen explosion in March last year.
[...] the latest photos showed twisted steel frames and other rubble in the water.
[...] Removing the rubble that has piled up around the fuel rods is expected to present a major challenge.
Read the report here
Photos here: Tepco Press Conference: New photos released of debris inside SFP No. 3
Published: April 14th, 2012 at 4:09 am ET
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Sounds funky and messy.
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that was really, really well put.
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@ 2:11 the refueling bridge crane ! out of the water !!!
Racks of Nuke Fuel Rods Exposed to Air – Volatile Plutonium Escaping – Arnie Gundersen
Uploaded by 58784677 on Apr 1, 2011
Updates on Fukushima – 2nd update for 31-03-2011
http://www.youtube.com/watch?v=b7iu7GwqXWo&feature=player_detailpage
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for clarity, Arnie's clip is of unit4, not unit 3. For unit 3 pics see: http://www.youtube.com/watch?v=KugIrnThul0 and http://www.google.com.au/search?q=unit+3+spent+fuel+pool+pictures&hl=en&client=safari&rls=en&prmd=imvns&tbm=isch&tbo=u&source=univ&sa=X&ei=_YWJT-aPJ4vJrAfg9aDYCw&ved=0CCYQsAQ&biw=1864&bih=1116
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Also, good general data page with pics: http://chong.zxq.net/misc/events/SpentFuelPool.htm
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Eh, xdrfox,
Is it really you?! WELCOME BACK
Aloha.
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Dear Admin,
Sorry, got lost between a link, a crane and a beam, awgeeze. Hope xdrfox is improving.
Aloha.
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It's an old thread, revived by ForwardAssist. The xdrfox post is dated April 14.
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In fact, this site has MASSES of good stored links, pics, maps diagrams etc that I'm certain will be of great interest to most of us: http://chong.zxq.net/misc/events/FukushimaPowerStation_I-II.htm
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Thanks for the link. good info!
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35 tons, for those who are interested that's about the weight of a cement truck in the US.
So if a cement truck fell on the fuel rods, would they be in good shape?
I'd imagine the crane is doing 40 MPH when it hit the water, how much it slows down, I can't say offhand
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35 tons dropped from any height is going to go wherever it wants to go.
Double the weight of an object, you double the impact energy.
Double the velocity of an object, you quadruple the impact energy.
Assuming they are referencing a metric ton, which is commonly refereed to as a long ton, and not the short ton commonly used in the US,
35 metric tons dropped 1 meter will generate an impact force of 349 metric tons, 385 us short tons.
Dropped 5 meters, 1748mt / 1927st
10 meters, 3497mt / 3855st
It's going to crush whatever it wants to crush. Which means we are in big trouble when it comes to removing the debris, LET ALONE having a chance at removing the damaged individual bundles from the damaged racks without a major incident.
/Random thought, I almost think that they should build a refrigeration plant and freeze the surface of the water solid to a depth of 2 or 3 feet. Less than a foot of ice can support the weight of a light truck, it could stabilize objects in their current position, still facilitate cooling the ponds below, arrest the fall of falling objects, or at least dissipate some of the energy of the falling objects. Individual sections could be thawed or the ice cut and removed to provide access to the current work section.
I'm sure there are technical difficulties, but winter is around the corner. Oh well, just throwing ideas at the wall.
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Hi ForwardAssist!
Aloha.
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Aloha.
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Dear ForwardAssist,
Brilliant!! And, winter is coming! Here is a link:
http://cocktails.about.com/od/mixology/f/make_iceball.htm
Aloha
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It is difficult to imagine that the cranes they have in place are robust enough to clean up this pile of junk. That is, if they can get close to the junk due to radiation.
They will need to design and build the largest gantry crane in the world to be able to dismantle this mess.
It is difficult to see how any progress will be made on a "cleanup" for many decades. If it holds together by then …
sschu
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What Really Happened At Fukushima Reactor And Spent Fuel Pool #3? via A Green Road Blog http://agreenroad.blogspot.com/2012/02/what-really-happened-at-fukushima.html
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