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LIVE thread & Breaking News ~ Japan
Various | 15 March 2011

Posted on 03/15/2011 8:13:35 AM PDT by SE Mom

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To: Drill Thrawl

“Thos scum sucking libs will not be happy until the population is a million people and we are all living in caves”

And called Morlocks.


481 posted on 03/15/2011 6:17:01 PM PDT by PastorBooks
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To: SE Mom

There are seven total spent fuel pools at Fukushima Daiichi: one at each of the six reactor units and one commonly shared pool. There are over 15,000 spent fuel assemblies stored in those pools. All pools have some number of fuel rods in them, based on that figure and the storage capacity described at #381.


482 posted on 03/15/2011 6:17:12 PM PDT by BuckeyeTexan
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To: BuckeyeTexan

Reuters FLASH: White smoke seen coming from No.4 reactor at Fukushima Daiichi plant:


483 posted on 03/15/2011 6:17:47 PM PDT by janetjanet998
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To: BuckeyeTexan

Wow. Thank Harry Reid for blocking storing our Spent Fuel Rods in the Nevada desert. Much safer to let them pile up around a live reactor, I guess.


484 posted on 03/15/2011 6:19:59 PM PDT by justa-hairyape
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To: bgill
I don't know, you'd be surprised how quickly water can boil away given a significant heat load. I've seen some pretty violent surging of fluid in a confined space if the boiling gets going pretty good. Lots of splashing and surging. If you can find it, check out the slow-motion films of the old SPERT reactors tests in Idaho. Some of the coolant just jets out of the containment pool once the transient starts. Not the same thing here (prompt criticality), of course, but perhaps similar fluid dynamics.
485 posted on 03/15/2011 6:22:43 PM PDT by chimera
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To: BuckeyeTexan

Thanks,...all the media seems to think it is the fuel rods.


486 posted on 03/15/2011 6:23:05 PM PDT by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach

Looks like the world press moved on to Japan. Now Gadafi can bomb the shit out of the rebels with little eyes watching.


487 posted on 03/15/2011 6:23:13 PM PDT by Marine_Uncle (Honor must be earned....Duncan Hunter Sr. for POTUS.)
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To: SE Mom
Was listeing to Foxnews and Shep and Hannity picked up a factoid.

Normal work force in that power plant complex....is 800...currently they have only 70.

That probably includes a large number of "mainenance people"

Not much mainenace going on at the moment...but it still seems shorthanded.

488 posted on 03/15/2011 6:27:51 PM PDT by Ernest_at_the_Beach ( Support Geert Wilders)
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To: Ernest_at_the_Beach

Read a report that stated the US Military helped put out fire #1 in reactor #4. This is of a global concern, no question.


489 posted on 03/15/2011 6:30:30 PM PDT by justa-hairyape
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To: justa-hairyape
That's the most ironic part of this whole mess. Those anti-nuke kooks are nothing but duplicitous SOBs. They trashed Yucca Mountain and said it is better to keep the used fuel at the plants. Now they'll use this unfortunate tragedy to say the plants are unsafe because of all the fuel stored at them. When all the while they are the ones responsible for the fact that the fuel is still there.

That dope Robert Kennedy was out agitating to trash Indian Point Energy Center because he said they stored spent fuel there and that made it unsafe. Yet he led the fight to have the Yucca Mountain repository trashed by Obama. So Indian Point can't move the fuel. So Kennedy says it is unsafe, but it is his fault the fuel is still there. Nothing but a duplicitous SOB.

490 posted on 03/15/2011 6:31:24 PM PDT by chimera
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To: Errant
I'm a fan of nuclear energy, just not one of piss poor engineering when the consequences of a major failure are so great.

I hope you're not suggesting that Fukushima was piss-poor engineering. It withstood an earthquake 40x more powerful than it was designed for, plus an end-of-the-world-sized tsunami, and while the situation has been dangerous and difficult, none of the reactors failed catastrophically.

491 posted on 03/15/2011 6:39:05 PM PDT by mvpel (Michael Pelletier)
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To: janetjanet998
Looks like it could be steam. Steam has the appearance of “white smoke”. They be be filling those fuel storage pools again.
492 posted on 03/15/2011 6:39:15 PM PDT by chimera
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To: mvpel
So it did exceed the design basis earthquake then? I thought it might have. Pretty impressive safety margin to still get the plant shutdown safely (i.e., reaction stopped).

There obviously was a common-mode failure in that the quake-tsunami scenario taking out the diesels was not accounted for by waterproofing the diesels. Station blackout is one of the most troublesome issues plant operators face. Couple that with a failure of emergency power and you have a situation difficult to deal with because we depend on those diesels to keep AC on the plant safety buses. Lose that and there is not much you can do other than scramble to get it back on, which they did. But by then other things had happened to complicate things.

493 posted on 03/15/2011 6:44:43 PM PDT by chimera
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To: justa-hairyape

Almost.

“In the wake of the fire at the No. 4 reactor, TEPCO ...sought cooperation from the Self-Defense Forces and U.S. forces to extinguish the fire. However, it was confirmed about 11 a.m. that the fire went out by itself.”

http://www.yomiuri.co.jp/dy/national/T110315004749.htm


494 posted on 03/15/2011 6:52:11 PM PDT by mrsmith
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Tepco official on NHK: We can’t say exactly what is going on at the moment.

Either #3 or #4 smoke


495 posted on 03/15/2011 6:55:33 PM PDT by WestCoastGal (SL I believe hes a remarkable race-car driver, I think some people in the world have forgotten that)
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To: mrsmith

Was that Fire #1 or Fire #2 ? So US Military and Japanese Military aid was sought initially, obviously since Fuel Rods on Fire would be catastrophic, but was not needed. So our guys are on standby ?


496 posted on 03/15/2011 6:55:38 PM PDT by justa-hairyape
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To: justa-hairyape

The big fire last night.

I guess the JDF and the US military would do anything they can to help.


497 posted on 03/15/2011 6:59:34 PM PDT by mrsmith
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To: bgill
Water doesn't just get up and jump out of the pools so the only other way out is down through a crack in the foundation.

These aren't just hot bars of steel like you'd find in a blacksmith shop, that spit off a bit of steam when you throw them in the water. They are actually creating an amount of heat that's hard to understand in the context of everyday life.

Freshly-spent fuel can generate up to about 13 watts of heat per kilogram of uranium, and one rod is about 6 kilograms, and a single fuel assembly contains about 95 rods. So that's nearly 7,500 watts of heat, or about 25,000 BTU per hour, in a single fuel assembly, out of hundreds and hundreds used in the reactor core. And that's AFTER they're used up.

Just three assemblies would be roughly equivalent to the furnace in my home running non-stop 24x7 for year after year. It's hard to imagine that there's that much energy in such a small amount of material, but there is. God works in mysterious ways.

So you can see why the water they're sitting in would heat up and evaporate in a hurry.

498 posted on 03/15/2011 7:01:24 PM PDT by mvpel (Michael Pelletier)
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To: WestCoastGal

Unit 4 has a report of “white smoke”. Looks a lot like steam to me, although it may be something else. They could be trying to refill those storage pools again.


499 posted on 03/15/2011 7:02:04 PM PDT by chimera
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To: chimera
Station blackout is one of the most troublesome issues plant operators face.

I gather modern reactors are designed to passively cool for an extended time using natural convection, rather than having to rely on pumps to circulate water. These reactors are about 40 years old.

500 posted on 03/15/2011 7:05:01 PM PDT by mvpel (Michael Pelletier)
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