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FUKUSHIMA earthquake and tsunami thread and aftermath


geezer466
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And you trust the BBC?? The experts that they haev on are useless, one said the expolsion might have been hydrogen and oxygen burning after the water got turned into steam, utterly amazing, time to ask a 10yr old what happens when you boil water, the sodding clown. This chap also said it's impossible for a meltdown to happen (as did a chap on sky), it's clear that those walls just weren't thick enough, nothing to hold that expolsion in!

You can see with your own eyes that one of the 4 recator halls is now just a metal frame, I can't think of anything else that it could be.

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And you trust the BBC?? The experts that they haev on are useless, one said the expolsion might have been hydrogen and oxygen burning after the water got turned into steam, utterly amazing, time to ask a 10yr old what happens when you boil water, the sodding clown. This chap also said it's impossible for a meltdown to happen (as did a chap on sky), it's clear that those walls just weren't thick enough, nothing to hold that expolsion in!

You can see with your own eyes that one of the 4 recator halls is now just a metal frame, I can't think of anything else that it could be.

yeah, but its all gonna be OK. The GOVERNMENT is gonna rescue us.

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Caesium detected outside is very bad - this is a direct fission product, should be contained in the fuel assemblies, the fact that it has escaped suggests that they are not intact - either ruptured or worse, melted. I'm thinking that they've had a big coolant leak since the whole thing started - and have lost a lot of coolant. Potentially very similar to Three Mile Island (massive speculation here....). Normal turbine trip and loss of power really shouldn't do this. The explosion, could be anything, it won't be nuclear, it will be chemical (e.g. hydrogen, or a diesel tank going up).

Comment on "why doesn't the reactor generate its own power to run the pumps" - as someone else has said, the turbines will trip out very quickly if bad things (motion) are detected. Running them would be worse, if they vibrated and shattered, or ingested water, it would make a big mess. This is exactly what they were trying to demonstrate at Chernobyl: the ability to operate the reactor on its own supply.

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"No Chernobyl is possible at a light water reactor. Loss of coolant means a temperature rise, but it also will stop the reaction,"

are the quotes because this is an old quote that you're quoting for ironic reasons? or is there a significant difference with this one?

They're not saying it yet but clearly this is an exploding reactor. What else could it be unless someone left the gas on when they were evacuated? Glad it's on the other side of the world.

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This chap also said it's impossible for a meltdown to happen (as did a chap on sky), it's clear that those walls just weren't thick enough, nothing to hold that expolsion in!

The shed over the reactor is not the containment. The reactor itself is much smaller and stronger. This is one of the key differences with Chernobyl where the shed was effectively the containment. The building could be destroyed and the reactor still be intact.

It isn't impossible for a meltdown to happen, what should be impossible is for the melted products to get out of containment. The presence of fission products outside suggests that some form of meltdown/fuel rupture has already happened.

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With more tsunami and nulesr situation , all I can day is that the japs character etc will deal with it, imagine what we would do here , one bit of snow and we panic , moan , and think our world has crumbled. We should be ashamed of ourselves

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This is a 'Hindenberg moment' for the nuclear power industry. The future of nuclear ended today.

What's escaping from the building is obviously steam, but is it radioactive steam? With all that water gone, what's will happen to the cooling systems? Look at the speed at which the cloud spreads.

Edited by Hyperduck Quack Quack
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are the quotes because this is an old quote that you're quoting for ironic reasons? or is there a significant difference with this one?

They're not saying it yet but clearly this is an exploding reactor. What else could it be unless someone left the gas on when they were evacuated? Glad it's on the other side of the world.

It's not really possible that this is an "exploding reactor". The reactor is sub-critical -- off. Chernobyl did explode, the reactor went super prompt critical.

In Fukushima they are struggling to keep an already off reactor cool. There is substantial decay heat in a recently tripped reactor.

If they lose cooling, the fuel and rods may melt and slump down into the bottom of the reactor pressure vessel. This would be a meltdown, but there would be no nuclear explosion. If the pressure vessel maintains its integrity then things should be okay. The reactor is destroyed of course. I guess the explosion we are seeing could be a steam release on the primary-side, which would be bad, if the fuel containment is breached -- i.e. if the fuel has melted.

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Sky just had a professor on pontificating about the explosion, then said, 'I don't know, I haven't seen the picture of the explosion yet'. Pointless.

Is this a Three Mile Island?

Given the fact that a lot of infrastructure and people got washed away, how are they fixed for coping with this in general?

A three mile island would be bad enough, but one where responses were very difficult or impossible would be a nightmare.

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That really was a major explosion . To get some perspective those dynamo rooms (The square buildings) along side the reactor are at least 100metres high. There would have been a loss of life at the plant from the blast.

Where are the reactors with respect to the turbine halls then? Because the exploding building was nowhere near one...

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So peak oil approaches (if not already here), and now this. It's an ill wind.... looks like those in wind, wave, sun energy have an even brighter future.

In the meantime I just hope this situation can be contained (although it's not looking good). If one people have suffered enough from radiation, it's the Japanese.

Newsflash - according to Sky News, there's been an official request for British nuclear scientists to help out. Unclear if this is specific to the UK, or a request to all countries that have nuclear power expertise.

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The shed over the reactor is not the containment. The reactor itself is much smaller and stronger. This is one of the key differences with Chernobyl where the shed was effectively the containment. The building could be destroyed and the reactor still be intact.

It isn't impossible for a meltdown to happen, what should be impossible is for the melted products to get out of containment. The presence of fission products outside suggests that some form of meltdown/fuel rupture has already happened.

tell me, just what in a shed, apart from the reactor, could generate a visible shock wave twice as high as the shed itself? propane tanks?

And they have just confirmed a radiation leakage, and have called in the British Government for help.

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tell me, just what in a shed, apart from the reactor, could generate a visible shock wave twice as high as the shed itself? propane tanks?

And they have just confirmed a radiation leakage, and have called in the British Government for help.

and that's supposed to restore our confidence?

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