Goddard’s Journal analysis indicates steam explosion at Reactor No. 3 — NRC discussed steam explosion ejecting entire core (VIDEOS)

Published: April 10th, 2012 at 1:51 am ET


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The most recent analysis by Goddard’s Journal indicates a steam explosion took place at Fukushima Daiichi Reactor No. 3.

In the days after March 11, the NRC discussed the possibility of steam explosion(s) at Fukushima.

  • [intlink id=”nrcs-possible-worst-case-scenario-examined-mox-at-no-3-speculated-that-steam-explosion-would-reject-an-entire-core-from-reactor” type=”post”]{{empty}}[/intlink]
  • [intlink id=”us-govt-experts-think-melted-fuel-rods-landed-in-water-under-reactor-no-2-causing-steam-explosion-pressure-dropped-dramatically-at-same-time-clear-indication-primary-containment-lost” type=”post”]{{empty}}[/intlink]
  • Via Enformable: NRC was concerned that Fukushima Reactor 1 was a steam explosion in containment

NRC Chairman Jaczko on March 18, 2011: “[…] look and see if you can’t come up with a […] worst-case that is physically possible […] I have to believe that there is no possibility in a light-water reactor design to reject an entire core. I mean, that’s basically steam explosion; isn’t it?

Here’s more from Goddard’s Journal on the steam explosion:

Unit 3 ex-vessel steam explosion model, preview (Must see in 720p resolution)

Uploaded March 7, 2012

“Figure 4 Animation: model of the initial phase of explosion based on data in Figures 2 and 3. The water in our model is darkened by contamination from molten off-gassing fuel”:

Fig. 4

“Figure 5 demonstrates the explosion-triggering mechanism, an ex-vessel steam explosion as described in Moriyama et al. wherein water has pooled at the bottom of the containment vessel below the reactor. Then molten fuel falling through a melt-through hole in the reactor’s bottom triggers a steam explosion as it strikes the water below the reactor”:

Fig. 5

Uploaded March 12, 2012

Uploaded March 13, 2012

Via Enformable: <a target=”_blank” href=”http://enformable.com/2012/02/nrc-was-concerned-that-fukushima-reactor-1-was-a-steam-explosion-in-containment/”>NRC was concerned that Fukushima Reactor 1 was a steam explosion in containment</a>
Published: April 10th, 2012 at 1:51 am ET


Related Posts

  1. Fukushima Plant Chief after 3/11: “Reactor 3, probably steam explosion, it just happened!” — NRC Chairman had said a steam explosion could “reject an entire core” (VIDEO) August 9, 2012
  2. NRC’s possible worst case scenario: Examined MOX at No. 3 — Also speculated steam explosion would “reject an entire core” from reactor March 6, 2012
  3. Fukushima Boss after 3/11: “It’s awful, awful… No. 3 reactor just blew, probably a steam explosion” — Steam explosion, not hydrogen? Reactor blew up, not reactor building? (VIDEO) October 13, 2012
  4. Japan media reports on new daytime video showing steam rising from Reactors No. 2 and 3 — Asahi: “Under the steam are the reactors” (VIDEOS) September 27, 2011
  5. Analysis: Reactor No. 3 well cap appears to be fractured — Explosion and falling crane examined as possible causes (VIDEO) March 6, 2012

32 comments to Goddard’s Journal analysis indicates steam explosion at Reactor No. 3 — NRC discussed steam explosion ejecting entire core (VIDEOS)

  • kid42day kid42day

    An entirely likely, if not completely terrifying, explanation.

    This situation is clearly out of control, and the weight of the world's collective resources and intelligence needs to be brought to bear in dealing with it. Sign the petition demanding that President Obama commission the Fukushima International Scientific Advisory Team and stop Fukushima.


    • the yeoman the yeoman


      Perhaps kicking and screaming in the middle of the street?
      oh thats been done

      Americans, come Nov leave the choice for pres blank, vote for everything and everyone else…can you image 100 million people going to the polls and a super majority not voting for pres…oh that would really screw things up for the "Jeb in 2016" camp…Its the only thing left in Barbara's bucket list 😉

  • Radio VicFromOregon

    Thx, kid42day, i will sign right now. I would like to hear Arnie Gundersen's assessment of Goddard's steam explosion theory. Arnie thought the Reactor 3 explosion was more likely a nuclear detonation compared to the notion being put forward by TEPCO that it was an hydrogen explosion. He based this on the rate of the explosion, it's ultimate height, and the cloud formation. Two very good and thoughtful minds. Maybe they could be on that committee!

  • Gaffney

    I it really possible that the force coming out from the reactor can blast away reinforced concrete, snap steel trusses but not destroy the reactor, not even the cap? We have got to see explanations that could cover this, how much can the cap lift up, what is the Max pressure the cap can cope with. Thus what volume of gases/water vapour can come out within a fraction of a second a close to the speed of sound or over.

  • InfoPest InfoPest

    The cap is still in place on top over the reactor. Even Goddard said in a previous article that the cap is only cracked. There is no way that much stuff could be ejected without blasting off the cap. I believe Arnie Gundersen was right that the explosion was a small nuclear explosion in the spent fuel pool.

  • Heart of the Rose Heart of the Rose

    Just batting it around…Unit 1 explodes.. three is losing cooling…but hasn't exploded yet..
    The Common Spent fuel pool..has to have lost cooling as well.
    The debris and shock from the explosion had to have played a part..it catches fire..and because the reactors are all connected under ground…it set off SFP 3 and so goes unit 3…full of MOX and so it seems weapons grade materials.
    Most of this basically simultaneous… ????
    There is speculation in the NRC docs that the explosion at 3 damaged the walls of 4 and upset the apple cart.

  • RutherfordsGhost

    No one has a clue on how to handle so much Pu in the MOX … it has never even been simulated. Anyone with a brain knows to stay away from Fukushima. The photographs of the people wearing respirators … well, those respirators are not enough. They're dead. They just don't realise it yet.

  • BreadAndButter BreadAndButter

    I think the cap is long gone. I still like this examination of some photos and videos here from last year. If you follow the thoughts of the author, you can indeed see "something black and round and steamy" (and no lid).
    Especially on page 7, where he shows a picture of "how it should be" with the opening in the concrete deck in which sits the RPV. In the following pic from site, you see the circle-shaped hole in the deck, but NO RPV cap.

    I was convinced by his analysis – what do you think?


  • Heart of the Rose Heart of the Rose

    Hi.. B and B..See at :45 …
    It looks rather…ummm..vacant.

  • Heart of the Rose Heart of the Rose

    I'm going to add a post explosion photo here..to get a concept of emissions.

  • As someone else has stated; this situation is out of control, one can only wonder if it'll ever be brought under control, it just seems things get worse and worse every time I hear about it.

    http://www.newsblok.com – alternative news aggregator – latest headlines from over 40 sites on one simple page, includes the latest from enenews and much much more 🙂

  • Heart of the Rose Heart of the Rose


  • irradiatedinbako

    NRC meeting today; Fukushima slated to be discussed. Anyone able to watch or listen via teleconference?


    • irradiatedinbako

      I did listen to most of second half NRC meeting today. Lots of industry specific talk over my head I have to admit.

      Two things stood out to me .. re fuel ponds, in Fukushima initial disaster response time was lost (wasted) checking status of SFP (flying helicopter over). Reactors first then SFPs. Someone may wish to check transcripts; I am not educated enough to present to this studied crowd. Basically seemed they are not as or very concerned about damaged or leaking SFP .. but only rate of evaporation slow enough not to make it higher priority.

      Also in cost benefit discussion .. "no one was hurt at Fukushima. But large area of land contiminated" and perhaps this needs to be taken into account (my very loose paraphrase and I will refrain from editorializing).

      Very few questions at end. A good one I thought suggesting that in emergency depth of water in fuel ponds should also be amplified with rate of loss.

      • CaptD CaptD

        I'm really sorry to have missed that.

        Hope fully they will post a video of it…

        What Enenews should do is to start a list of great questions for their next HEARING because then perhaps they will get "ASKED"…

        • irradiatedinbako

          @CaptD .. re ENEnews readers compiling list of questions to present at next NRC open public forum I think that is one of the most productive activist moves to be made. One thousand thumbs up!

          These powers that be guys get away with literal murder because they: (a) are allowed to as much as an ignorant (lied to and pacified) apathetic democracy permits (b) they are arrogant enough to think there aren't brains in the common man think tank to understand their mind numbing "to be followed up later" beaurocracy in inaction doublespeak and (c) even without all the beauro-speak we are still too stupid to follow along.

          One of the questions came from a man who proudly stated "I am not shy."

          I thought, shit .. I wish many more would speak up like that. Wish I could; still too early in my learning curve here.

          Peace ..

          • CaptD CaptD

            We need to promote Safety to win public support; because the public and the nuclear industry don't want to discuss tech stuff…

            But ask how the Gov't. would pay for a Trillion Dollar Eco-Disaster and exactly where the money would come from is quite another matter!

            I wrote this about the "insurance" that the industry says will cover everyone:

            The times are a changin'… Bob Dylan

            When folks think Location, Location, Location, one of the most important things is:
            "How close am I and or are we downwind from a potential Nuclear Reactor Meltdown"

            Lets use Southern California as an example:

            What would happen to property values in SoCal if SORE, (San Onofre Reactor Emergency) suffered a meltdown like Fukushima for ANY reason, like an EQ (Earth Quake), terrorism, Tsunami, operator error or just "because it can"?

            Per the NRC: Fact Sheet on Nuclear Insurance and Disaster Relief http://www.nrc.gov/reading-rm/doc-collections/fact-sheets/funds-fs.html

            In short, if there is more than $12 Billion in damages, residents are left holding a empty radioactive bag! This is only a tiny fraction of what it will cost in Fukushima, which is estimated to be about a Trillion Dollar Eco-Disaster!

            What is the value of all the homes and Commercial property downwind of SORE?
            Probably at least several TRILLION dollars…

            Here is a great graphic that will help everyone visualize what is downwind of any of the US reactors! NRDC Nuclear Fallout Map:…

            • CaptD CaptD

              Con't (sorry it got clipped)

              Here is a great graphic that will help everyone visualize what is downwind of any of the US reactors! NRDC Nuclear Fallout Map: http://www.nrdc.org/nuclear/fallout/
              Just click on a reactor and zoom in…

              Where will the US Government get the REST of the money if it happened at SORE (or a reactor where you live) next week, probably from Social Security and or Medicare?

              In reality, ALL those affected are doomed! Tens of thousands are still living in nuclear refugee camps in Japan and it has been over a year since their triple meltdowns which are BTW still sending radioactive pollution Globally!

              On the other hand if SORE is De-Commissioned, then the Property values would climb upward quickly because SoCal would then not have this radioactive RISK hanging over our heads and that could actually jump start our local and State economy.

              This would be a Win-Win-Win situation because So-Cal does not need the electric capacity these two leaker could provide, (which has already been proven because both reactors have been shut down for months by orders from the NRC), De-Commissioning will generate lots of good paying long term Jobs and there will be no more RISK of a meltdown; besides SoCal needs a bigger World Famous Surf Park in San Onofre !

              For more see:
              or on HP: http://is.gd/YcZFTC

    • Jebus Jebus

      Full NRC San Onofre Press Conference @ youtube, featuring the Man!

      Jaczko Press Conference April 6th, 2012 Dana Point, California


      • CaptD CaptD

        Great Post Thanks

      • Jebus Jebus

        Couple of things I noticed while viewing this…
        When a reporter asks how many steam tubes failed after pressure testing, he squirms a bit and says around 8 or so and then they turn to call in questions real fast.

        And then LOL, later I heard the music to "do your ears hang low" start and get cut off. Was there an ice cream truck nearby or did someone have a very funny ring tone just at the right moment?!!

  • glowfus

    begin marketing food/water products as "radiation free" or "plutonium clear" organic food. a perfect combo; $$ earings plus spread the word. (generics could be "low" caesium content and the flea market stuff, well, yum.)