Tepco: No ‘major’ deformation or corrosion seen so far in removed fuel assemblies (VIDEO)

Published: July 19th, 2012 at 11:17 am ET
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20 comments


Title: TEPCO finishes trial removal of unused fuel from Fukushima No. 4 unit
Source: Kyodo News
Date: July 19, 2012

Tokyo Electric Power Co. said Thursday it has finished the trial removal of two unused nuclear fuel assemblies from a fuel storage pool at the badly damaged No. 4 reactor unit of its Fukushima Daiichi power plant without any major trouble. 

[…]

The utility known as TEPCO will carry out a more detailed inspection of the two assemblies, which are bundles of fuel rods about 4 meters long and each weighing some 300 kilograms. But spokesman Junichi Matsumoto told a press conference that no major deformation or corrosion had been observed so far.

Published: July 19th, 2012 at 11:17 am ET
By

20 comments

Related Posts

  1. 5 Weeks Later: Tepco begins checking fuel assemblies it removed from Unit 4 pool — Says no ‘major’ deformations so far August 27, 2012
  2. Removed fuel assemblies 100 times more radioactive than normal — Tepco worker thinks it’s from before 3/11 July 19, 2012
  3. Fuel assemblies placed in special container after cleaning, not yet transferred into shared pool — No “major abnormality” in external appearance or radiation levels July 20, 2012
  4. Tepco to remove fresh fuel from No. 4 pool this summer — “Hoping to determine how damaged unused assemblies are” May 28, 2012
  5. Nuclear Engineer: New fuel is highly reactive, easier to go critical than spent fuel — Bad situation if assemblies are damaged (VIDEO) July 20, 2012

20 comments to Tepco: No ‘major’ deformation or corrosion seen so far in removed fuel assemblies (VIDEO)

  • patb2009

    1) it's jsut stupid to have workers hand wiping fuel assemblies.

    2) the fuel bundle looks heavily corroded, new they are bright and shiny. this the salt water looks like it ate it.

    3) they need a spray deluge system not 2 dopes with garden hoses. because when they pull a hot one out or a contaminated one, you want to keep it cool and really scrub loose fuel off of it.

    4) way too many workers standing around what is a hazardous operation and area. They need the fewest people, not a big crowd of watchers…

  • kaybee1

    OMG… Just watching this circus act makes my hair stand up. If this is the best we've got… We're doomed. Scrubbing with sponges and garden hoses? Where is that water going? There appears to be absolutely no regard for safety or containment what-so-ever. They've reduced a process that should be treated as the most dangerous thing in the universe to being as mundane as washing your car.

  • My first concern is why the logo on their hasmat (or maybe just overalls) is blocked out. The fact they want that kept secret really bothers me.

    • jec jec

      So no one knows what company to ask about questions such as illness from the fuel rod removal project. Are these foreign workers–used and sent home to their country afterwards? Would be interesting to have the perspective of one of the workers–as to to the issues and how they are/were handled.

    • omniversling

      I'm so glad to see TEPKILL taking their worker's safety concerns so seriously, and issuing the two guys down on the steel SFP lid marine life preservers, in case the fall into the water…. hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha hahahahahahahahahaha

  • PhilipUpNorth philipupnorth

    What did we learn from this video of new fuel assembly removal from SFP4?
    Any criticalities in SFP4 did not activate the new fuel assemblies, which seem safe to work around and to touch with a gloved human hand.
    The zirconium fires did not damage every fuel assembly in SFP4.
    At least some of the fuel assemblies in SFP4 are intact.
    Sea water is corrosive to zirconium cladding.
    I still don't quite see the point of this test. Was it just to get a good look at the lower portion of a fuel assembly?
    My real concern is whether a majority of spent fuel assemblies are intact, or have been breeched. How many spent fuel assemblies will be spilling their fuel pellets onto the floor of SFP4 as they are handled.

    • Yes, and how many were squashed by the 35 ton crane?

      • omniversling

        FD, I believe the crane is in SFP3, however these clips were released by TEPKILL, therefore as far as we know they could be of SFP5 or SFP6, given what happened in R3 'launch procedure'. SFP4 was memorable for it's ladder (stairway to heaven for anyone who got close enough).

        Spent Fuel Pool of reactor 4 Unit 4 at Fukushima Daiichi 8 May 2011
        http://www.youtube.com/watch?v=QVqfPCsl2AA&feature=related

        SFP immersion shot Unit 4, Fukushima NPS
        http://www.youtube.com/watch?v=uIbM-9ees7Q&feature=related

        http://enenews.com/confirmed-35-ton-machine-sitting-on-top-of-the-spent-fuel-rack-in-the-pool-of-reactor-no-3-extent-of-damage-not-yet-known-videos

        • omniversling

          What is clear though is that in the submersion clip of SFP4, it's obvious that some fuel assemblies are in worse condition than others. Some of the lids have been completely corroded (or burned) away. I'd be pretty certain that TEPKILL have started with the easiest removal, to test their system and check the bottom of it to see if there's any evidence of bigger problems deeper in the pool.

          Am gobsmacked by the casual way that all this seems to be done, and that the assemblies are not fatally hot from 16 months of proximity to the rest of the fuel load. Unless of course, there is no more fuel load…just empty assemblies. There are many in SFP4 that appear to be missing their rods…

          Or, this is a stunt, and to show the world that 'nuclear is safe, and even if we have the worst case scenario, our guys can still handle it'. Recall the speculation here about why 'potential SFP4 collapse' was getting such attention recently, whilst the actual catastrophic consequences of 400-600lbs of R3 aersolised plutonium, and Fukusteamer1 and Fukusauna2 were totally ignored. And for the most part still are…

    • chrisk9

      I think all that was proved was that there are some undamaged and relatively intact fuel bundles. Did they pick bundles from the edge of the pool and as far away from the ones that caught fire as they could? Of course. This may be just a PR move, lets see how they progress. I don't think that crane will be used for anything but the new bundles, it was a pretty mickey mouse looking operation. Apologies to Mickey.

  • PhilipUpNorth philipupnorth

    Why don't they build an all-steel mobile crane lift based on the design of a mobile ship lift? Build the mobile crane lift once, then use it to remove spent fuel from Buildings1,2,3,&4. Could be automated and remote-controlled. Mount crane on the horizontal steel rails. Crane wider than widest Fuku Building. On tires for mobility as it moves from one demolished building to the next.
    http://www.thephoenician.net/boat-lift.htm

    (Then keep this crane on hand to empty the spent fuel pools of other Japanese nuke plants as they blow up, one after another, since the Japanese people seem willing to allow Gov.Nuke to reopen nuke plants all over Japan per their plan?)

  • Oh, for pity's sake! This Kabuki is just… Kabuki.

    Surely if they wanted a convincing piece of video they could have put just a LITTLE bit of effort into it, rather than having the same people repeat the exact same motions over and over and over again, while way too many people stand around looking bored and doing nothing at all.

    I can pretty much guarantee that any assembly that was actually IN the pool for the last 16 months (you didn't see this one IN there, did you?) would have had some attached gunk and crust on more than just the ~2-foot section that one guy keeps scrubbing over and over again, while nobody else scrubs anything.

    Oh… and notice that the guy with the hose is NOT spraying top-down from the top, or even spraying that little section the scrubber-guy keeps scrubbing and scrubbing. In fact, he's mostly just spraying into the pool. Where there is maybe a 1-meter square opening we are supposed to assume is how they went 15 meters down with a mere hook on a cable and snagged this pristine assembly, lifted it out of its cradle and up through the opening without even once banging the danged thing against the steel plate around that itty bitty hole. That looked about impossible, just by the amount of swinging the darned thing's doing in this video!

    I ain't buying it.

    • …and if scrubbing and scrubbing the same [pristine] spot over and over again isn't bad enough, he's using a damned ShamWow/HandiWipe (or maybe just a paper towel). Not even your basic dish-scrubber or plastic scrub brush. That's ridiculous.

      In fact, it would surprise me not one bit to soon see out-takes from that second clip on television soon as part of a commercial to sell ShamWows or HandiWipes… or paper towels. Bounty! It's so great, it decontaminated Fukushima!

      [/grumble, snark, offense taken…]

    • omniversling

      JoyB, the guy with the hose is spraying those undisciplined little nuclides who are refusing to smile for the cameras back into the pool…

    • truthseek truthseek

      Exactly posturing is all they are doing…

    • Ana Ana

      Joy B is right. It is kabuki. I now understand the drill. TEPCO makes this fake film showing everything is really ok and all you need is a rope, a shamwow and a garden hose and SPF 4 will be cleaned up in a jiffy. We also have a different voice telling us that we need to be skeered of the terrorist threat to FUKU. And soon the sad announcement that even though things were going good and TEPCRAP was fixing things up the terrorists showed up and blew everything up. It is all the terrorists fault and there is nothing heroic TEPCRAP or our caring assorted governments could do. But be concerned cuz we have lots of experts that know this stuff is not too bad – all the sea life is dying from something else and so will you. /sarcasm and rage here

  • pierre

    good for a laugh, one could speed it up and make a Keystone Cops movie.
    Someone pass the Holy Hand Grenade.
    / in the absence of credible facts what can one say?

    why am I not surprised to see no backup enclosing framework just in case the cable snaps? – same reason why #4FP pumps share the same UPS.

    4 down, 1600 to go.