Fukushima nuclear plant explosion

[mashman]

it must be hard going, especially when they don't stop exploding... another one apparantly

[Crasherfromwayback]

Just gets worse for the poor buggers

[Brian d marge]

Just gets worse for the poor buggers

I know , Customers still want their stuff , and the power is .ummm ropey.

Communications up north are still shot , but most people I know are alright

Same as CHCH really there will be someone.

On a lighter note got a lot done in the garden , peas beans potatoes garlic carrots pumpkin Goya ginger and red peppers

Now just need to put cooling in the workshop for summer .

Can get a lot done when the Pc doesnt work ...!
Stephen

[The Stranger:Me]

No it hasn't. Hydrogen created by a process explained in the link I posted a little earlier has exploded.

Noooo, the sky is falling, the sky is falling.

Ok, was thinking (it's actully not that hard) so they are short of pumps. The press tell us so, but I haven't seen anyone (say the press) put that into a perspective. I mean why not just rip down to hire pool and grab some pumps and a genset? Well obviously the they thought of that one, perhaps they're not rocket scientists but I gather they're pretty smart none the less.
But, hell there must be some temporary arrangement surely?

A quick google search and and you get a perspective on the magnitude of the problem. So I have no way of knowing if these pumps are anything like what are/were in use at the plant but fook me 121,600 Gallons per minute.
Now you start to see the magnitude of the problem.

A question for those in the know please.
I gather they are puming in sea water to cool the cores.
Does the water come into contact with the radioactive core? I assume it does in this case at least. It would appear that any chance of using a heat exchanger is out as they have said that the coolant is below the core.

[Swoop]

Did any greeines like Royal forest and bird, greenpeace, green party, marua society submit against it?

The question is also "did the greenies support the idea?".
One resident NIMBY can shut down a good proposal, very easily.

[george formby]

I gather they are puming in sea water to cool the cores.

Not sure of the exact plumbing in a nuclear reactor but I do know that the sea water is highly corrosive. If the reactor was not designed to circulate sea water then it is fooked. Throw it away & start again. Very worrying that this is the last resort & it is sacrificial.

[SPman]

Some background info on the Toshiba/Westinghouse reactors and Tokyo Electric power company....not all good...
http://www.gregpalast.com/no-bs-info...nds/#more-4497

Be skeptical about the statements that the "levels are not dangerous." These are the same people who said these meltdowns could never happen. Over years, not days, there may be a thousand people, two thousand, ten thousand who will suffer from cancers induced by this radiation.

[Ronin]

Noooo, the sky is falling, the sky is falling.

Ok, was thinking (it's actully not that hard) so they are short of pumps. The press tell us so, but I haven't seen anyone (say the press) put that into a perspective. I mean why not just rip down to hire pool and grab some pumps and a genset? Well obviously the they thought of that one, perhaps they're not rocket scientists but I gather they're pretty smart none the less.
But, hell there must be some temporary arrangement surely?

A quick google search and and you get a perspective on the magnitude of the problem. So I have no way of knowing if these pumps are anything like what are/were in use at the plant but fook me 121,600 Gallons per minute.
Now you start to see the magnitude of the problem.

A question for those in the know please.
I gather they are puming in sea water to cool the cores.
Does the water come into contact with the radioactive core? I assume it does in this case at least. It would appear that any chance of using a heat exchanger is out as they have said that the coolant is below the core.

This will answer all and more:

http://mitnse.com/

Rehosted version of Jim's previous post.

[The Stranger:Me]

Some background info on the Toshiba/Westinghouse reactors and Tokyo Electric power company....not all good...
http://www.gregpalast.com/no-bs-info...nds/#more-4497

That's interesting, particularly the part about the press only being interested in numbers. It's so right. My son and 3 of his friends were in Tokyo when the big one struck. All the NZ embassy was interested in was registering numbers. I'm very grateful to the Ausie embassy, one of their staff got the Kiwi's out of there. It wasn't until a few days later that we realised that they were on the missing list and we called and removed them. The embassy was very grateful - for helping them keep the numbers up to date.

[mashman]

and that makes 4... the link makes for exceptionally grim reading.

[Ronin]

and that makes 4... the link makes for exceptionally grim reading.

In that case I would read another media outlet other than Yahoo.

[george formby]

In that case I would read another media outlet other than Yahoo.

http://www.stuff.co.nz/world/asia/ja...pdates-Tuesday

[george formby]

Fook, it sounds grim. NHK TV is reporting slight increases in radiation levels & radioactive particles all over the place, including Tokyo.

[george formby]

http://www.stuff.co.nz/world/asia/ja...uclear-complex

[Winston001]

I gather they are puming in sea water to cool the cores.
Does the water come into contact with the radioactive core? I assume it does in this case at least. It would appear that any chance of using a heat exchanger is out as they have said that the coolant is below the core.

Yes. Seawater is directly cooling the core.

This is a BWR (Boiling Water Reactor) as opposed to a PWR (Pressurised Water Reactor). The difference - and its important - is that a BWR drives the generator directly with steam from core water. A PWR uses a closed loop cooling system and a heat exchanger to pass heat to the steam generation loop.

A PWR gives another level of safety because the generator is separated from the reactor cooling.

Below the reactor is the pool - a torus of water into which radioactive steam is vented in an emergency. If the pool loses pressure that tells us radioactive steam has been let out. Even so, it should be contained within the reactor building but as we've seen, there have now been 3 explosions releasing steam and particles into the environment.

Apparently reactor 4 is now on fire. Its incomprehensible.