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[Various] Japan Nuclear Emergency - Continuous Coverage of Damage and Radiation Risks - Page 74  

post #731 of 2836
Quote:
Originally Posted by xd_1771 View Post
So has the seawater cooling method actually been working so far?
yes, the temps have been dropping steadily they said.
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post #732 of 2836
Thread Starter 
Quote:
Originally Posted by Tunapiano View Post
Sounds like it's getting under control though the reactors will be tough to cleanup, i thought i read somewhere that Sea water renders the reactor unusable, that's why it's a last resort option.
Yeah once the saltwater hits the cooling system corrosion begins. After everything is stabilized the reactor is basically useless and will have to be decommissioned.
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post #733 of 2836

Pretty insteresting and freaky vid of the ground cracking open and moving:

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post #734 of 2836
i say they just remove the reactor, reapply thermal paste, bolt it back down tighter and stress test it. keep an eye on realtemp.

glad its under control.
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post #735 of 2836
So basically the risk of any meltdown is reducing. That's great to hear.
Is there still a good risk though?
post #736 of 2836
This is why we couldn't of let more countries become Nuclear states. should of just kept the original 5.

And the nuclear power station is over 40 years old! this is just ridiculous.
    
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post #737 of 2836
Quote:
Originally Posted by Andr3az View Post
Pretty insteresting and freaky vid of the ground cracking open and moving:

http://www.youtube.com/watch?v=qkHxDZGSM7E
haha i like at one point it says this is reclaimed land from the bay haha, it looks like the bay is reclaiming it once again!
post #738 of 2836
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
So basically the risk of any meltdown is reducing. That's great to hear.
Is there still a good risk though?
Yes there is a still a risk but it's greatly diminished at this point. The most worrying one is Fukushima Plant #2's Reactor #3 because it a MOX reactor, using both Uranium and Plutonium fuel. All of the reactors are still classified as a nuclear emergency, but all the news that's come out today has been good so far.
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post #739 of 2836
Quote:
Originally Posted by BKsMassive View Post
This is why we couldn't of let more countries become Nuclear states. should of just kept the original 5.

And the nuclear power station is over 40 years old! this is just ridiculous.
Its pretty normal for nuclear power stations to be around 40 years old. Most of the worlds nuclear powerplants are around that age ( well in russia atleast ).
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post #740 of 2836
Thread Starter 
Quote:
Originally Posted by BKsMassive View Post
This is why we couldn't of let more countries become Nuclear states. should of just kept the original 5.

And the nuclear power station is over 40 years old! this is just ridiculous.
Hard to keep the nuclear genie in the bottle once it's been let out.

Also nuclear power plants represent a massive amount of capital investment and resources so they are designed to be used for decades like most power plants. I think the average cost of the Fukushima reactors was 1.5 billion each so they are trying to get a good return on their investment. Modern plants that are currently under development cost between 8.5 and 14 billion.

I think it's also a relatively expensive form of electricity compared to coal, oil and natural gas. The initial electrical cost is about 13 US cents per kWh for the first 5 years and 18 US cents ever year after that. The average cost of a full decommissioning is 300-500 million US dollars.
Edited by Lampen - 3/13/11 at 12:23pm
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