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post #11 of 75
Quote:
Originally Posted by dontpwnmebro View Post

it seems, based on many so called "nuclear engineers" and "nuclear scientists" on the internet (many of them with some sort of proof or knowledge base to back it up for laymen), nuclear power plants are designed to make meltdowns almost impossible.
tell that to fukushima
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post #12 of 75
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Originally Posted by HK_47 View Post

tell that to fukushima

Yeah, and all that took was a devastatingly powerful tsunami to melt that sucker down. And NC is known for it's earthquakes and tsunamis.

Seriously tho, odds of the thing melting down are very low. Only thing NC ever has to deal with is the occasional Hurricane.
post #13 of 75
Quote:
Originally Posted by dontpwnmebro View Post

it seems, based on many so called "nuclear engineers" and "nuclear scientists" on the internet (many of them with some sort of proof or knowledge base to back it up for laymen), nuclear power plants are designed to make meltdowns almost impossible.

this is true. there are many layers of fail safe devices, such as design, operating procedures, control and instrumentation interlocks, selection of operators ect. to prevent this from happening. unfortunately, due to freak conditions, such as what happened in japan, the fail safe devices can be bypassed or rendered useless. in general, pressurized water reactors are quite safe, which is why the navy has been able to operate them for almost 60 years without an issue.
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post #14 of 75
Quote:
Yeah, and all that took was a devastatingly powerful tsunami to melt that sucker down. And NC is known for it's earthquakes and tsunamis.

Seriously tho, odds of the thing melting down are very low. Only thing NC ever has to deal with is the occasional Hurricane.

Actually it had nothing to do with the earthquake or tsunami, again like Chernobyl it was just a lack of understanding from the engineers and staff on site. Of course the tsunami and earthquake put them in that situation but it was human error again that allowed it to spiral out of control.
post #15 of 75
Quote:
Originally Posted by navynuke499 View Post

this is true. there are many layers of fail safe devices, such as design, operating procedures, control and instrumentation interlocks, selection of operators ect. to prevent this from happening. unfortunately, due to freak conditions, such as what happened in japan, the fail safe devices can be bypassed or rendered useless. in general, pressurized water reactors are quite safe, which is why the navy has been able to operate them for almost 60 years without an issue.

Racing in nascar is relatively safe, very few people die doing it anymore
post #16 of 75
Quote:
Originally Posted by ttwerdun View Post

Actually it had nothing to do with the earthquake or tsunami, again like Chernobyl it was just a lack of understanding from the engineers and staff on site. Of course the tsunami and earthquake put them in that situation but it was human error again that allowed it to spiral out of control.

Ummm???
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post #17 of 75
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Originally Posted by navynuke499 View Post

Ummm???

Well you get the point, the problem arose from the two disasters, but if they didnt screw up cooling the fuel rods there would be no meltdown. Its like saying the oil I put in my car caused the engine to blow up, but I didnt change it in 150,000 km.
post #18 of 75
Quote:
Originally Posted by ttwerdun View Post

Actually it had nothing to do with the earthquake or tsunami, again like Chernobyl it was just a lack of understanding from the engineers and staff on site. Of course the tsunami and earthquake put them in that situation but it was human error again that allowed it to spiral out of control.

You do know that having 0 power due to downed lines and flooded generators means that you can't cool the fuel anymore. Also add cracked coolant lines into the mix means you can't keep pressure, and the only thing keeping the coolant from flashing to steam is lots and lots of pressure. Once a pressurized water reactor's coolant flashes to steam it's done. Alvin M. Weinberg the man responsible for much of the research behind the pressurized water reactor condemned the design, rallying for the industry to switch to liquid fluoride thorium reactors after he proved that one could be built. but was told to quit after going against the man.

Adding more safety devices to a bomb doesn't make it less of a bomb.
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post #19 of 75
It also had a coolant tank that ran on ZERO power, they operators read the gauge incorrectly thinking it was implemented when in fact it was still shut off, at the time they realized this "tank" was not running they radiation in the area holding the coolant tank with the ONLY manual switch was so high the workers refused the enter.

Im sorry I cant be more specific, it was in the report I read through and I would have to dig for it. It stemed from them miss reading a gauge but when they realized what was happening it was past the point of being able to correct it.

The sad part is they had these manual tanks cooling and shut them down because the pressure readings were improving when in fact they wernt.

Now im going to have to find it because it was a great read on how we as humans are to blame for causing the reactors to melt down.

Edit

Found one quick blurb on it.

"Checking the gauges: Air pressure inside No. 2 reactor rose suddenly when the air flow gauge was accidentally turned off. That blocked the flow of water into the reactor, leading to the water level dropping and the exposure of the fuel rods"

Theres a lot more too this though.
Edited by ttwerdun - 9/28/12 at 6:49pm
post #20 of 75
Quote:
Originally Posted by Aesir View Post

You do know that having 0 power due to downed lines and flooded generators means that you can't cool the fuel anymore. Also add cracked coolant lines into the mix means you can't keep pressure, and the only thing keeping the coolant from flashing to steam is lots and lots of pressure.

This

There wasnt much that could be done after it had been damaged. Chernobyl on the other hand you are correct about, those guys ignored and silenced alarms and bypassed safety features and really didnt understand what they were doing. that was a huge mess made by the operators.
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