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Nuclear Experts Explain Worst-Case Scenario at Fukushima Power Plant
Scientific American ^ | March 12, 2011 | Steve Mirsky

Posted on 03/12/2011 10:22:33 PM PST by SteveH

Edited on 03/12/2011 11:37:14 PM PST by Jim Robinson. [history]

The type of accident occurring now in Japan derives from a loss of offsite AC power and then a subsequent failure of emergency power on site. Engineers there are racing to restore AC power to prevent a core meltdown.

First came the earthquake, centered just off the east coast of Japan, near Honshu. The horror of the tsunami quickly followed. Now the world waits as emergency crews attempt to stop a core meltdown from occurring at the Fukushima Daichi nuclear reactor, already the site of an explosion of the reactor's housing structure.


(Excerpt) Read more at scientificamerican.com ...


TOPICS: Breaking News; Japan; News/Current Events
KEYWORDS: bwr; fukushima; nuclearpower
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To: blueplum
so they need AC power - can that be gotten somehow from a battleship or a nuke sub linking up to some transmission lines?

Absolutely. It doesn't even have to be a nuclear USN ship. A diesel ship can do it.
It's just a question of power transmission (electrical lines).

And, sadly, a question of if the USN is given clearence to prevent a nuclear reactor meltdown by their Commander in Chief.

I wouldn't put it past him to send those resources to other areas instead.
21 posted on 03/12/2011 11:32:07 PM PST by RandallFlagg (Let this chant follow BHO everywhere he goes: "You lie. You lie. You lie.")
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To: SteveH

I believe the USS George Washington was in port at Japan when the quake hit.

Let me guess how this will play out. The media will breathlessly report the “meltdown” for days, even describing how many people will be killed by the radiation cloud which has surely been released by now.

Then at the last minute the Japanese will perform a completely successful shutdown of the reactor. At that point the Democrats and leftwingers all over the world will once again proclaim nuclear power is very, very bad and we can’t build anymore plants.


22 posted on 03/12/2011 11:32:55 PM PST by VeniVidiVici (The last Democrat worth a damn was Stalin.)
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To: SteveH

A+ Article!


23 posted on 03/12/2011 11:33:03 PM PST by Danae (Anailnathrach ortha bhais beatha do cheal deanaimha)
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To: Cvengr

Try restore your infrascture when you die within three days without sanitary water. I am thinking you may not understand our capabilities. Logistics is admittedly an issue, but these things are overcome when required.


24 posted on 03/12/2011 11:34:28 PM PST by mmercier
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To: mmercier

A chain is only as strong as its weakest link.


25 posted on 03/12/2011 11:37:33 PM PST by Cementjungle
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To: RandallFlagg
Absolutely. It doesn't even have to be a nuclear USN ship. A diesel ship can do it. It's just a question of power transmission (electrical lines).

There's a bunch of problems that have to be over came. One is the ship any ship can not come in that close to port right now due to trash in the water. A carrier is very deep draft & needs at least 50 feet preferbly 75 feet or more in water depth. Weighted draft is 36-38 feet but you want some margin for navigation and the water intakes away from the ocean floor.

You don't want your fire pumps, and all other sea water intakes sucking up stuff into the strainers. It would shut the ship down and compuund the problems even more.

Really the quickest way to get power is to airlift either an Army or USAF portable power station in by helo and set it on site. That also cuts down on voltage drop you would get running cables out to a ship. Dropping in a portable generation unit is the most logical and practical and quickest alternative for on site use.

26 posted on 03/12/2011 11:44:44 PM PST by cva66snipe (Two Choices left for U.S. One Nation Under GOD or One Nation Under Judgment? Which one say ye?)
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To: cva66snipe

I know all that (I was a BM on a flat top). The question was asked about if it could be done with a ship’s systems. It’s be a major beyotch, but it could be done if needed.

HIGHLY agree with the airlift, though. Load up some 46’s and 53’s with the gear and personnel and get to work.


27 posted on 03/12/2011 11:54:09 PM PST by RandallFlagg (Let this chant follow BHO everywhere he goes: "You lie. You lie. You lie.")
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To: mmercier

I run the numbers daily.

Most people who run the numbers assume modern infrastructure and suburban lines of communication.

Survival is a different metric.


28 posted on 03/12/2011 11:56:48 PM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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To: Cvengr
It’s hard to quantify and qualify acts of God before the event, especially if one ignores Him.

Run out of funerals to protest, Mr Phelps?

29 posted on 03/13/2011 12:01:21 AM PST by newzjunkey
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To: RandallFlagg
Im was a MM and worked AC&R I know some of the limitations on electrical loads we were the biggest single user. In my civilian work I was a Commercial Maintenance Mechanic HVAV and Commercial Electrical back ground. The longer the wires the more voltage drop. A ship is not going to be pier side there but anchored out.

In the time need to even begin configuration if you could possibly make it work a portable could be operational. Believe it or not you can move a 300 ton chill water Air Conditioning plant in the same way. They have them that big portable. Where I worked at it was a twice a year event when the chiller went down. The portable was trucked in on a flat bed.

30 posted on 03/13/2011 12:02:21 AM PST by cva66snipe (Two Choices left for U.S. One Nation Under GOD or One Nation Under Judgment? Which one say ye?)
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To: cva66snipe

Ruh-roh!
Your name’s not Kidwell, is it?
(He was my old CC)


31 posted on 03/13/2011 12:04:32 AM PST by RandallFlagg (Let this chant follow BHO everywhere he goes: "You lie. You lie. You lie.")
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To: Cementjungle
I am now the weakest link in the chain.

Been up since 4am yesterday, kicked in 14 hours at work, lost a dumb hour a few minutes back today, and have to be at work in three hours.

My boss will be so thrilled with what is left of me.

Me be a walking talking piece of $hit for the next 18 hours.

If I get lucky, I will be run over by a bus getting the paper this morning.

32 posted on 03/13/2011 12:05:13 AM PST by mmercier
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To: Cvengr

What numbers do you run daily...?


33 posted on 03/13/2011 12:08:21 AM PST by mmercier
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To: newzjunkey

Sorry, IMHO, I don’t perceive the Westboro folks to remain in fellowship with God during such activity.

It is rather fortuitous for the nuclear plant sustaining these damages was going to be secured within a month of the events.

I believe the folks operating the plant and its designers have all acted with good intent and probably the best of human ability, from a secular perspective. If it fails, it can still be admitted as evidence in the angelic appeals trial, manifesting work independent of His Plan will still ultimately remain good for nothingness.

FWIW, the area hit by the tsunami had a Christian population within it. I don’t criticize the efforts of those working the situation in Japan, but support their effort as though I were working for God. All things through faith in Him and by what He provides.


34 posted on 03/13/2011 12:16:11 AM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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To: mmercier

Logistics and infrastructure construction, maintenance, and repair in remote areas, with and without infrastructure for 1000-20000 populations. Transmission, distribution and service levels of infrastructure design.


35 posted on 03/13/2011 12:30:55 AM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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To: mmercier

Good luck.

Keep the faith, Semper FI.


36 posted on 03/13/2011 12:32:36 AM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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To: RandallFlagg

Remember that Japan tends to be all 50Hz and metric, while we’re 60Hz. When we design with metric, we really design with English units and make metric conversions. Their systems are designed in metric. Much more difficult to interface with our gear. Feasible, but not conducive to immediate action.


37 posted on 03/13/2011 12:37:01 AM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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To: SteveH
"The containment, I believe, is still intact. But if the core does melt, that insult will probably not be sustained, and the containment vessel will fail. All this, if it were to occur, would take a matter of days. What's crucial is restoring AC power. They've got to get AC power back to the plant to be able to control it. And I'm sure they're working on it."

Honestly, we don't they send a ship up there and generate some power?

38 posted on 03/13/2011 1:20:10 AM PST by americanophile ("this absurd theology of an immoral Bedouin, is a rotting corpse which poisons our lives"-Ataturk)
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To: blueplum

...I would think so. The USS Reagan in nearby also; that could definately provide all the power they need.


39 posted on 03/13/2011 1:21:13 AM PST by americanophile ("this absurd theology of an immoral Bedouin, is a rotting corpse which poisons our lives"-Ataturk)
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To: glock rocks

Indeed.


40 posted on 03/13/2011 1:23:29 AM PST by americanophile ("this absurd theology of an immoral Bedouin, is a rotting corpse which poisons our lives"-Ataturk)
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