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Nuclear Meltdown 101: What Is a Full Meltdown?

 
Psemeni
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03/15/2011 07:02 PM
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Nuclear Meltdown 101: What Is a Full Meltdown?
The most basic of questions and answers, but worthy of posting for those non-science types who are simply trying to understand--


The Daily Beast spoke with Ron Ballinger, professor of nuclear science and engineering at MIT, and David Brenner, director of the Columbia University Center for Radiological Research, about the difference between partial and full meltdowns, hydrogen blasts, and windblown radiation.

Read Q & A here--


[link to www.thedailybeast.com]
Post 7/11/10--

"We just walked right through all the stones, all the bottles, and whatever they threw. We have won a major Victory."

[link to www.youtube.com]
Psemeni (OP)

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03/15/2011 08:01 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Now that there's more room on the front page--


bump
Post 7/11/10--

"We just walked right through all the stones, all the bottles, and whatever they threw. We have won a major Victory."

[link to www.youtube.com]
Jebus

User ID: 1264574
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03/15/2011 08:45 PM

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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
bump
Peak Oil, Peak Civilization, Peak EVERYTHING
People who don't believe in peak oil fall into 3 categories:
Uninformed.
In denial.
Too stupid to understand it.
Which one are you?
Anonymous Coward
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03/15/2011 08:58 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Never go full meltdown...

Monkeyfister

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03/15/2011 09:03 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Worthwhile for those amongst us who are panicking now to avoid the rush.

Bump. Pin suggested, 5-stars.
"I'm the bride at every funeral, I'm the corpse at every wedding..." --Brother Theodore
... and don't blame me-- I voted for Bob Barr in 2008.
Only COWARDS hide behind anonymous Karma.
Anonymous Coward
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03/15/2011 09:05 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
Anonymous Coward
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03/15/2011 09:06 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?

[link to www.youtube.com]
StickyBun

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03/15/2011 09:06 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
 Quoting: Anonymous Coward 1220916


clappa
Fancy meeting you here!
Psemeni (OP)

User ID: 1295978
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03/15/2011 09:25 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
 Quoting: Anonymous Coward 1220916



Given I think this article is rather nebulous on the "fear-mongering" front would you quote from the text your particular problem with this being used as a basic (101) learning tool.

Seriously, I didn't get a fear mongering feel from this at all. I wouldn't have posted it if I'd thought so.
Post 7/11/10--

"We just walked right through all the stones, all the bottles, and whatever they threw. We have won a major Victory."

[link to www.youtube.com]
Anonymous Coward
User ID: 1220916
United States
03/15/2011 09:54 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
 Quoting: Anonymous Coward 1220916



Given I think this article is rather nebulous on the "fear-mongering" front would you quote from the text your particular problem with this being used as a basic (101) learning tool.

Seriously, I didn't get a fear mongering feel from this at all. I wouldn't have posted it if I'd thought so.
 Quoting: Psemeni


I mean to express the simple truth of the matter that the use of the term "meltdown" is somewhat inaccurate when describing nuclear fuel damage, and is unnecessary fear-mongering by word association with popular culture icons (ie: China Syndrome).

Science does not validate this theory, and the only way known to cause containment vessel failure is by generating heat in excess of 6000 degrees.

My only concern in the current situation is the use of Plutonium derived fuel, which is flammable and hard to extinguish if it catches fire. (unit #3 and #4 are suspect)

If that's the case... well... then Michio Kaku is right. They need to bury the reactors under a few tons of magnesium oxide.
Psemeni (OP)

User ID: 1295978
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03/15/2011 10:23 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
 Quoting: Anonymous Coward 1220916



Given I think this article is rather nebulous on the "fear-mongering" front would you quote from the text your particular problem with this being used as a basic (101) learning tool.

Seriously, I didn't get a fear mongering feel from this at all. I wouldn't have posted it if I'd thought so.
 Quoting: Psemeni


I mean to express the simple truth of the matter that the use of the term "meltdown" is somewhat inaccurate when describing nuclear fuel damage, and is unnecessary fear-mongering by word association with popular culture icons (ie: China Syndrome).

Science does not validate this theory, and the only way known to cause containment vessel failure is by generating heat in excess of 6000 degrees.

My only concern in the current situation is the use of Plutonium derived fuel, which is flammable and hard to extinguish if it catches fire. (unit #3 and #4 are suspect)

If that's the case... well... then Michio Kaku is right. They need to bury the reactors under a few tons of magnesium oxide.
 Quoting: Anonymous Coward 1220916



Okay. Thank you for your explanation and input.

I still don't think the article itself is fear mongering, though.

Tell me, what concept title would you apply, rather than "meltdown"? Nuclear "catastrophe"? Nuclear "disaster"?

Can we merely call this a Nuclear "event" and have that cover the true nature of what's happening in Japan?

You see, I don't think it's so much what we call it, but rather what we don't know about it that's more capable of instilling fear. Given that, again thank you for your input.

Lack of knowledge can easily make for dark quarters in one's psyche.

I'm just attempting to shed a little light, eh?

Last Edited by Psemeni on 03/15/2011 10:24 PM
Post 7/11/10--

"We just walked right through all the stones, all the bottles, and whatever they threw. We have won a major Victory."

[link to www.youtube.com]
Jebus

User ID: 1264574
United States
03/15/2011 10:26 PM

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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
 Quoting: Anonymous Coward 1220916


Lighten up Francis.
Peak Oil, Peak Civilization, Peak EVERYTHING
People who don't believe in peak oil fall into 3 categories:
Uninformed.
In denial.
Too stupid to understand it.
Which one are you?
Anonymous Coward
User ID: 1220916
United States
03/15/2011 10:28 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
 Quoting: Anonymous Coward 1220916



Given I think this article is rather nebulous on the "fear-mongering" front would you quote from the text your particular problem with this being used as a basic (101) learning tool.

Seriously, I didn't get a fear mongering feel from this at all. I wouldn't have posted it if I'd thought so.
 Quoting: Psemeni


I mean to express the simple truth of the matter that the use of the term "meltdown" is somewhat inaccurate when describing nuclear fuel damage, and is unnecessary fear-mongering by word association with popular culture icons (ie: China Syndrome).

Science does not validate this theory, and the only way known to cause containment vessel failure is by generating heat in excess of 6000 degrees.

My only concern in the current situation is the use of Plutonium derived fuel, which is flammable and hard to extinguish if it catches fire. (unit #3 and #4 are suspect)

If that's the case... well... then Michio Kaku is right. They need to bury the reactors under a few tons of magnesium oxide.
 Quoting: Anonymous Coward 1220916



Okay. Thank you for your explanation and input.

I still don't think the article itself is fear mongering, though.

Tell me, what concept title would you apply, rather than "meltdown"? Nuclear "catastrophe"? Nuclear "disaster"?

Can we merely call this a Nuclear "event" and have that cover the true nature of what's happening in Japan?

You see, I don't think it's so much what we call it, but rather what we don't know about it that's more capable of instilling fear. Given that, again thank you for your input.

Lack of knowledge can easily make for dark quarters in one's psyche.

I'm just attempting to shed a little light, eh?
 Quoting: Psemeni


I would simply use the truth to describe it. "fuel damage"

Meltdown does not mean "molten nuclear pile burning through the containment barrier and exiting in an uncontrolled manner"

Meltdown or "fuel damage" simply means that the metal casing around the aggregate fuel pellets has melted. It's damaged.

My two cents.
Anonymous Coward
User ID: 1220916
United States
03/15/2011 10:29 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
Molten fuel burns at 3000 degrees.

Container fails (burns thru) at 6000 degrees.

So.... the metal rods surrounding the fuel pellets melt and the fuel pellets collect at the bottom of the vessel. They will continue to gradually cool down .... over the course of a week or two .... and then they can be safely removed in a few months, and no radiation will be released.


The China Syndome is a myth, and an unproven hypothesis not supported by tests, nor did it happen in the only meltdown known to have occurred (at 3MI).

This is called "fear-mongering" and news hype to generate interest, viewers and sell advertising by news whores, and those with ulterior political motives.
 Quoting: Anonymous Coward 1220916


Lighten up Francis.
 Quoting: Jebus


Logan's Run. Good movie.
Psemeni (OP)

User ID: 1295978
United States
03/15/2011 10:41 PM
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Re: Nuclear Meltdown 101: What Is a Full Meltdown?
I would simply use the truth to describe it. "fuel damage"

Meltdown does not mean "molten nuclear pile burning through the containment barrier and exiting in an uncontrolled manner"

Meltdown or "fuel damage" simply means that the metal casing around the aggregate fuel pellets has melted. It's damaged.

My two cents.
 Quoting: Anonymous Coward 1220916



Well, actually, the classic definition of nuclear meltdown includes the escape of radiation, also.

Just a little more 101 information.
Post 7/11/10--

"We just walked right through all the stones, all the bottles, and whatever they threw. We have won a major Victory."

[link to www.youtube.com]

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