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[Various] Japan Nuclear Emergency - Continuous Coverage of Damage and Radiation Risks - Page 180  

post #1791 of 2836
Quote:
Originally Posted by willis888 View Post
It is not the reactor(s) that would cause the release of radiation. The core(s) are not at risk of catching on fire while exposed to the atmosphere.

The storage tank filled with old fuel rods is the concern. Those spent fuel rods are cooler than the core of the reactor, but still produce enough heat to light themselves on fire. To prevent a fire, they are kept under water, and that water is circulated through a heat exchange to keep it cool.

If the circulation system is broken and the pools are boiling, that would produce enough hydrogen to cause the explosions we've seen. If the pools are boiling, then the water level is dropping. It would be very bad if the spent fuel became uncovered and started to burn. The pools are not enclosed like the reactor core is - the water is the only shielding between the spent fuel and the atmosphere. If the spent fuel begins to burn, it will send up a cloud of radioactive dust. The radioactive elements in spent fuel rods have a longer half-life than what was released by Chernobyl, and there is more material in a storage pool than was present in that ill-fated reactor. However, unlike Chernobyl, there will not be a partial nuclear detonation that blasts globs of molten uranium for miles in all directions.
Wow, why does japan rely so much on nuclear power anyway when they are at such risk of s tsunami all the time.
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post #1792 of 2836
Quote:
Originally Posted by james_ant View Post
Wow, why does japan rely so much on nuclear power anyway when they are at such risk of s tsunami all the time.
I heard people discussing this on the radio today, basically they have so few natural resources that they have little choice but to use nuclear power. Plus, they were prepared for normal earthquakes and tsunamis, this was a once-in-500-years earthquake.
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post #1793 of 2836
Quote:
Originally Posted by james_ant View Post
Wow, why does japan rely so much on nuclear power anyway when they are at such risk of s tsunami all the time.
Nuclear power is fine there, it is the fact that the backup generators that would control the cooling when the reactors shutdown were above ground and got knocked out from the tsunami. Had they been below ground like modern plants there would be no issue. Japan will just have to rework their facilities to have the generators below ground in any that are designed like the ones that are giving them issues right now. You have to keep in mind these are 40 year old plants that were set to be decommissioned in a month. Most of Japans nuclear plants are much more modern with much better safety precautions than the ones that are giving them trouble.
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post #1794 of 2836
What i find ironic is that im watching the latest episode of "The Event" and its about uranium and chernobyl...... Im worried now, everything is circling around this disaster!
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post #1795 of 2836
Quote:
Originally Posted by Waffleboy View Post
I heard people discussing this on the radio today, basically they have so few natural resources that they have little choice but to use nuclear power. Plus, they were prepared for normal earthquakes and tsunamis, this was a once-in-500-years earthquake.
it's not so once in 500 years when we have had 5 or more world wide earthquakes that were 7.0 - 9.1 in the last 7 years stretching from india to chile to haiti to new zealand to japan and 3 of those were on the same plate.....the pacific plate.
post #1796 of 2836
Quote:
Originally Posted by Tunapiano View Post
it's not so once in 500 years when we have had 5 or more world wide earthquakes that were 7.0 - 9.1 in the last 7 years stretching from india to chile to haiti to new zealand to japan and 3 of those were on the same plate.....the pacific plate.
Which is exactly why they need to upgrade their older plants and get them at least near the same level as more modern plants safety wise.(not that they are unsafe but there are always things they can do to make them better) Japan can not give up nuclear, they have no means to power their country without it.
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post #1797 of 2836
edited by damric. nevermind.
Edited by damric - 3/17/11 at 11:27am
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post #1798 of 2836
Quote:
Originally Posted by scyy View Post
You have to keep in mind these are 40 year old plants that were set to be decommissioned in a month.
Link of reference?
post #1799 of 2836
Awesome, damric's back posting. What's your take on the fuel pools in unit 4?
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post #1800 of 2836
Quote:
Originally Posted by Chunky_Chimp View Post
Awesome, damric's back posting. What's your take on the fuel pools in unit 4?

Haven't heard anything reliable about that. I just got home from a 13 hour shift at the plant, and I'm going to bed. I'll find out what I can and share my thoughts again tomorrow night. Trust no one, especially news media that earns a profit from advertising.
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Overclock.net › Forums › Industry News › Technology and Science News › [Various] Japan Nuclear Emergency - Continuous Coverage of Damage and Radiation Risks