TEPCO says “sharp rise” in temperature at reactor No. 3, up 70ºF in a day — Japanese media: Is it due to the melting of nuclear fuel?

Published: May 8th, 2011 at 12:12 pm ET
By
Email Article Email Article
31 comments


“Tokyo Electric reported a sharp rise in temperature at the nearby Reactor 3. It was at 202 degrees Celcius early  Sunday, up 40 degrees in less than a day” -Voice of America, May 8, 2011

Unit temperature rise of 3 or fuel melting due to, TBS, May 8, 2011:

The Fukushima Daiichi nuclear power plant accident. In Unit 3 has raised the temperature of the reactor, and that does not contain enough water for the damage to the cooling pipe, a portion of the fuel burn-through, the heat came from there, perhaps because a found in an interview that government officials are.

The temperature of the Unit 3 reactor pressure vessel 08 at 5:00 am and 151.9 degrees upward trend becoming restless, but has increased compared to nearly 40 degrees a week ago.

According to officials, the cause of the temperature rise is not in good enough for the water damaged some water pipes are sent to the reactor, and even some fuel rods melted fall down, it is considered likely that the heat emitting.

Toukyoudenryoku for injection into the reactor, even this weekend, will switch to another pipe plumbing system currently being used.

Meanwhile, now that the Unit 1 reactor building doors open at 8:00 pm on September 8. At this time, but will be released from the small amount of radioactive material, “exhaust blower” that level is down by NISA impact on the surrounding environment is “no obstacle” judges for permission.

The door opened, people have become to be able to work inside the reactor building, Unit 1 will be able to progress toward a stable cooling.

Translation via FanJapan:

The title of this article is 3号機の温度上昇、燃料溶融が原因か which means “Is the temperature rise at unit 3 due to the melting of nuclear fuel?” [...]

Both English and Japanese are not my mother tongue, so it might not be a perfect translation^^

福島第一原発の事故です。3号機では原子炉の温度が上がっていますが、冷却のための水が配管の損傷のために十分に入っていないことや、燃料の一部が溶け落ち、そこから出た熱が原因として考えられることが政府関係者への取材でわかりました。
This is about the accident at the Fukushima Daiichi nuclear plant. It has been reported by a person related to the Japanese government that the temperature is rising at the nuclear reactor of unit 3, and it is thought that it is because of heating up due to either an insufficient incoming water due to a damage in water pipes of the cooling system, or because of a part of the nuclear fuel which has melted and fallen down. [...]

Vessel temperature at Unit 3, atmc.jp, May 8, 2011:

See also: Report: “Evidence Of Fukushima Daiichi Reactor Fire” (PHOTOS & VIDEO)

Published: May 8th, 2011 at 12:12 pm ET
By
Email Article Email Article
31 comments

Related Posts

  1. TEPCO: Reactor No. 3 temperature rising — Pumping water to cool reactor may be ‘insufficient’ (VIDEO) May 10, 2011
  2. Sharp rise in radioactive material near Reactor No. 3 – Seawater concentration triples in a day (VIDEO) May 18, 2011
  3. Japan nuclear expert: Massive “re-melting” occurred at Reactor No. 3 (DIAGRAM) August 8, 2011
  4. “Most” of the fuel at Reactor No. 3 may have breached vessel after melting down twice August 8, 2011
  5. TEPCO trying to “prevent re-criticality” at Reactor No. 3 — Temperature soaring in pressure vessel, up over 100°F in 24 hours even after increasing water injection May 15, 2011

31 comments to TEPCO says “sharp rise” in temperature at reactor No. 3, up 70ºF in a day — Japanese media: Is it due to the melting of nuclear fuel?

  • FanJapan

    The title of this article is
    3号機の温度上昇、燃料溶融が原因か
    which means
    “Is the temperature rise at unit 3 due to the melting of nuclear fuel?”

    I am going to translate the whole article as soon as possible^^


    Report comment

  • xdrfox

    Causing the rise in temperature of 3 and fuel melting?


    Report comment

  • FanJapan

    Both English and Japanese are not my mother tongue, so it might not be a perfect translation^^

    福島第一原発の事故です。3号機では原子炉の温度が上がっていますが、冷却のための水が配管の損傷のために十分に入っていないことや、燃料の一部が溶け落ち、そこから出た熱が原因として考えられることが政府関係者への取材でわかりました。
    This is about the accident at the Fukushima Daiichi nuclear plant. It has been reported by a person related to the Japanese government that the temperature is rising at the nuclear reactor of unit 3, and it is thought that it is because of heating up due to either an insufficient incoming water due to a damage in water pipes of the cooling system, or because of a part of the nuclear fuel which has melted and fallen down.

    3号機の原子炉圧力容器の温度は8日午前5時に151.9度と上昇傾向は落ち着きつつありますが、1週間前に比べると40度近く上がっています。
    On May the 8th in the morning, the temperature of the pressure container of the nuclear reactor at unit 3 has risen almost 40°C compared to a week ago in a continuous and steady increase to 151.9°C.

    政府関係者によりますと、温度上昇の原因については、原子炉に送る水の配管が一部で損傷しているために十分に水が行き届いていないこと、さらには、燃料棒が溶けて一部が下に落ち、熱を発している可能性が考えられるということです。
    (same as the first paragraph basically)

     原子炉への注水について東京電力は、今週末にも、現在使っている配管から別の系統の配管に切り替える予定です。
    Concerning the injection of water into the nuclear reactor, Tepco plans to exchange the present pipes with pipes from another line this weekend.

     一方、1号機では8日午後8時に原子炉建屋の扉が開放されることになりました。この際、微量の放射性物質が外に放出されることになりますが、「排風機」により濃度が下がっていることから、原子力安全・保安院は周辺の環境への影響について「支障はない」と判断し、許可しました。
    On the other hand, at unit 1, doors of the building of the nuclear reactor have been opened at 8pm, May the 8th. As a result, small amounts of radioactive material are released but the concentration is lowered by the “extracting fans”. This has been judged as “not harmful” to the immediate environment by the Nuclear and Safety Agency which provided the authorization.

    扉が開き、原子炉建屋の内部で人が作業できるようになれば、1号機については、安定的な冷却に向け前進できることになります。
    Once people can work inside the reactor building whose doors are opened, it will possible to progress toward a stable cooling system at unit 1.


    Report comment

  • Northern Exposure

    Well, the good news with Unit 3 is that the temperature isn’t skyrocketing and the pressure seems to be stable.

    I have a tendency to think the rise in temp is due to both damaged cooling system pipes and partial meltdown.

    Time is of the essence with Unit 3. They need to get this one under control quick… going into full blown criticality is hanging by the hairs of its chinny chin chin with this particular unit.


    Report comment

  • xdrfox

    But in essence, this heat build up is also cause smoke/steam would be in conjunction with !

    Hydrogen ?


    Report comment

  • Anthony

    Official: Japan won’t abandon nukes despite crisis

    http://www.msnbc.msn.com/id/42946503

    So bizarre not even one comment on msnbc site….

    Don`t you think if one country causes health and safety dangers for the rest of the world, then the rest of the world should be involved in the decision as to whether that country can still run dangerous operations?


    Report comment

    • Yes, of course what you say is true, but there are powers greater than governments ruling this world and the nuclear industry is one very direct expression of those powers. It is a FACT that everyone on Earth needs a NUCLEAR FREE WORLD NOW (including both BOMBS AND REACTORS). Any other option will continue to cause massive instability for all on Earth and terrible events such as this disaster will continue to happen.

      There is so much deceit with the Fukushima crisis. For instance, the Norwegian Institute for Air Research has one set of public radioactive fallout maps (http://transport.nilu.no/products/fukushima) and another set of maps in an obscure folder on their server (http://zardoz.nilu.no/~flexpart/fpinteractive/plots/?C=M;O=D) showing levels that are about 100 times higher than the maps on the public server. Why is this?

      An analysis of the radioactive fallout maps covering the Norwegian data as well as the Rhenish data (from Germany) is here: http://globalcooperative.wordpress.com/2011/05/07/radioactive-weather-update/


      Report comment

      • radegan

        I’ve studied those alternate animations too. If I were preparing the animations, and they couldn’t give me a level yet, I would prepare several, say (x) (10x) (20x) & (100x) – then when I got numbers, release the closest one. That of course depends on getting accurate numbers, distorted readings from TEPCO produce distorted distribution animations. And the Norwegians did not choose to explain the alternate animations using the logic I just presented, instead they swiftly shut down access to the alternate animations.


        Report comment

  • WindorSolar Please

    Hope that everyone had a Happy Mother’s Day.

    Most importantly for a Mother is, the well being of her kids.

    She wants her kids to grow in a healthy and safe environment.

    I hope that on this Mother’s Day that, things will change for the better.


    Report comment

    • WindorSolar Please

      I truly pray that they start to get Japan’s Disaster under control and that the Gulf and the beaches somehow gets clean of the toxic chemicals.


      Report comment

  • Dominique Guillet

    My friend, look here: the AREVA mafia at the CFR a few days ago speaking of Fukushima and the DNA of AREVA: hallucinating.

    Dominique

    http://www.cfr.org/energyenvironment/future-vision-energy-video/p24887


    Report comment

  • Will there come a time when they kick TEPCO out of there and let the experts take over? TEPCO looks at everything through the prism of the bottom line. This should have been done day one.


    Report comment

    • Anthony

      It will be so LAME when it COMPLETELY hits the fan that Japan Govt says “TEPCO`s fault“ …. after the North American Govts said “Japan`s fault“ when North Americans ask for help from their own Govts.


      Report comment

  • Novamind

    Soon raged Japanese survivor mobs will start beheading TEPCO execitives in public squares. In Operation “Honor Restore” missions. Others will be tied to the front of remote control vehicles and delivered to the damaged reactor area and left there without benefit of protective gear. These will be the “Lucky Ones”.


    Report comment

  • Anthony

    TOKYO — Japan and the United States plan to jointly build a spent nuclear fuel storage facility in Mongolia to serve customers of their nuclear plant exporters, pushing ahead despite Japan’s prolonged nuclear crisis, the Mainichi daily said on Monday.

    Well I guess that`s a response to the Japan crisis ….


    Report comment

  • http://a-place-to-stand.blogspot.com/2010_03_01_archive.html

    Definition of HORMESIS

    : a theoretical phenomenon of dose-response relationships in which something (as a heavy metal or ionizing radiation) that produces harmful biological effects at moderate to high doses may produce beneficial effects at low doses.

    Tuesday, March 30, 2010
    RADIATION HORMESIS – SPREADING THE QUESTION
    I would like to thank Jerry Pournelle for taking the time to report my quite complex, heavily linked, recent post on radiation hormesis & the herd of irradiated cattle put down when they reached record breaking ages. He added:

    A reader sends this. It was not easily formatted, and it takes some attention to understand, but the subject is important. I had thought that the LNT people were slowly giving up, but perhaps not.

    ——————

    There is a great deal of money at stake in this. The tort bar lawyers will be involved.
    That latter is a point I had not thought of – perhaps because I live in a less litigious society. I had realised that, since the LNT is fundamental to any opposition to the use of nuclear power in electricity generation; in the prevention of the Orion nuclear space project achieving its perfectly feasible goals of “Mars by 1965, Saturn by 1970″; & in low level radiation medicine not being half as effective at saving lives as smoking is at ending them it has had an immensely destructive effect on humanity. How anybody can pay for that I cannot see but I can now see some lawyers will want to find out. Beyond any economic cost the post Hiroshima & justified fear that scientists had let the djinn out of the bottle nust have been exacerbated by the largely unjustified fear of the insidious radiation boogyman, which has done so much to power the whole anti-technology movement.

    I can imagine a number of people, such as those on the British investigation who said that the evidence would fit absolutely any line whatsoever, going through their emails to see if they have ever admitted trying to “hide the decline”. And of course, all the politicians who have lied to promote this scare saying they never knew better, though the decision to get rid of the cattle must have been either a political or military one & there is no reason the military would want it.

    Professor Fred Singer, publisher of SEPP also accepts that radiation hormesis is the proven scientific paradigm. This is from one of the articles republished by SEPP:
    According to the LNT hypothesis, such levels [background radiation levers in the early days of the planet] should have sterilized the earth and eradicated all life. Instead, radiation may have produced multiple new mutations in existing life forms, with the negative disadvantageous mutations disappearing rapidly, and the positive advantageous mutations prospering and propagating. Indeed, it seems likely that this radiological imperative was a significant factor in the evolution of all species…

    This current zeal for zero-tolerance of radiation is reminiscent of the puritanical efforts of early missionaries visiting South Sea Islands for the first time. Because of their zero-tolerance for alcoholic beverages, these newcomers coerced the natives into giving up their fermented home-brews containing many natural nutrients, which eventually led to deficiency states of several vitamins and minerals. Inadvertently, these missionaries documented the Law of Unintended Consequences — and helped pave the road to hell with their good intentions.

    It has already been documented that nuclear workers with additional low-level exposures (LLE) have statistically significant longer life spans and lower cancer incidences than matched-control workers without the LLE. Our current radiation antipathy and LNT hypothesis would never predict this result, so this unexpected improvement for exposed workers continues to be largely ignored and unacknowledged. An Internet search for “radiation hormesis” produces a wealth of positive information, information that is almost completely lacking in prior and current medical textbooks and physics publications.
    It may well turn out that, as with global warming an awful lot of scientists had been persuaded that the LNT theory, like warming, was a “scientific consensus” & to keep quiet about their doubts because in a consensus there must be some people who actually know. If so, because there is so much much evidence against it particularly repeatable plant & animal experiments, it may prove even more brittle than the catastrophic warming “consensus”. Certainly I have found nobody able to put a coherent argument for LNT except ad hominum ones.


    Report comment

    • Deetu 3

      Oh they’re tricky!
      Poll; Shall we bomb them into oblivion or just flatten the entire country?

      Experts:”Death not thought to be harmful”


      Report comment

    • radegan

      Ah, so this is where Ann Coulter gets that. Let’s see, radiation produces mutations, 90% of which are not beneficial. So does irradiation in vivo mutate the viral and bacterial load, producing mostly damaged and weaker strains that serve as a vaccination? Sounds good, but you’re only looking at one part of the puzzle. What about the stronger 10%? And the other virus and bacteria that mutate, and now cross over and infect humans? So it’s easy to see benefit when your vision is narrowed.


      Report comment

  • jcrabb

    lol..Singer.. he also says Climate change isn’t happening and that Smoking doesn’t cause cancer.
    He has no credibility.


    Report comment

  • Jack

    Repo Man
    Plate o’ Shrimp!


    Report comment

  • xdrfox

    Central Japan nuclear plant to temporarily close
    Utility to suspend operations at Hamaoka nuclear plant in central Japan over safety concerns
    TOKYO (AP) — The operator of a coastal nuclear power plant agreed Monday to the Japanese government’s request to shutter three reactors until it builds a seawall and improves other tsunami defenses…
    http://finance.yahoo.com/news/Central-Japan-nuclear-plant-apf-1975177775.html?x=0


    Report comment

  • Cindy

    Today, The temp is 216.4 *C

    So, Still Going up …

    What will happen ?


    Report comment

    • Manifest Irony

      220.3&deg C today. My question is how can that be water or steam when the RPV is at atmospheric pressure? Has to be the temperature of the air inside the RPV, no?


      Report comment