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Japan Nuclear Crisis Part II


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I keep thinking of goofy ways they could get water to the tops of the buildings without exposing the workers too much.

Some zany ideas (some of which I think people have mentioned)

1) heavily shielded ladder fire trucks that have cannons at the tops of the ladders

2) tethered balloons with hoses - tethers can be adjusted from a "safe" distance to position the balloon

3) remotely operated airships carrying hoses (bigger versions of what fly around indoor arenas)

If the Russians could build remotely operated bulldozers 25 years ago, surely the Japanese could invent some solution...heck send in a bunch of those Asimo robots with buckets of water

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According to the Yomiuri newspaper, the water spraying exercise conducted from the ground by special trucks on reactor three (to fill the containment pools?) has been completed. They will wait to see the results.

so they finished the operation after the had to stop becuase of high radiation?(assuming they had to do that in the first place)

TEPCO now saying it has began hooking up cables to power to the plants cooling system..but since the sprayings took up time they will have to wait until tomorrow to finish

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they doesn't really follow from my post. Since they are mitigating the risk to the workers, they are most likely increasing the risk to a larger segment of the general population.

This plant is really old, this disaster could of been avoided if they had just shut it down. Really disappointing situation and people are so eager to bash coal power plants over "emissions".

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Water shots effective in cooling fuel pool as steam rose: TEPCO

Tokyo Electric Power Co. said Thursday that high-pressure streams of water shot earlier in the evening by the Self-Defense Forces' fire trucks were effective in cooling an apparently overheating spent fuel pool as steam rose from the partially destroyed building housing it.

The operation, part of an unprecedented cooling attempt that also involved SDF helicopters dropping tons of seawater earlier in the day, came later than expected because of a high level of radiation in the vicinity of the building, it said.

But the radiation level remained more or less unchanged at around 3,600 microsievert per hour after the trucks completed their work,

http://english.kyodonews.jp/news/2011/03/79023.html

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This plant is really old, this disaster could of been avoided if they had just shut it down. Really disappointing situation and people are so eager to bash coal power plants over "emissions".

total coal emissions : this nuclear emergency (as) total US annual rainfall for 20 years : morning dew on the grass IMBY for one day

totally different magnitudes, dude (thus far).

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* 1st operation

Japan Self-Defense Forces dropped 4 huge buckets of seawater from helicopters

in this morning. Lead plates were installed at the bottom of the helicopters to

shield radiation and crew members wore radiation protection suits.

* 2nd operation

The National Police Agency tried to pour water from the ground with pumper

truck in the evening. However, they were not able to come close because of high

radiation and water did not reach the pool.

* 3rd operation

Japan Self-Defense Forces poured 30 tons of water from the ground with 5

special pumper trucks from 19:45 to 20:09. Because these trucks are special, they

were able to do this operation

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Coal produces about 360 mCi (milli) per billion kwh generated for some reference

thx for info.

i was trying to communicate a comparison of the impacts of the coal emissions he noted to this once incident as he did...in other words, it's pretty evident that coal has caused a tremendously larger impact to the environment and humanity than nuclear ever has...much less this one nuclear emergency he used as a prop.

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this sounds high, no?

[9:38 a.m. ET Thursday, 10:38 p.m. Thursday in Tokyo] High levels of radiation have been detected 30 kilometers (18.6 miles) from the damaged Fukushima Daiichi nuclear plant, broadcaster NHK reports, citing Japan's Science Ministry. Exposure to those levels of radiation for six hours would be equivalent to the safe level of what a person can absorb in a year, according to the report.

Japan's science ministry says radiation levels of up to 0.17 millisieverts per hour have been detected about 30 kilometers northwest of the quake-damaged Fukushima Daiichi nuclear power plant.

http://news.blogs.cn...support/?hpt=T1

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they doesn't really follow from my post. Since they are mitigating the risk to the workers, they are most likely increasing the risk to a larger segment of the general population.

This whole thing has just been bizarre. Today the news conflicts even from the same sources but the information they have released to me anyway doesn't make it seem anywhere near as bad right at this moment.

What I wonder is this....have the experts figured out with this much damage to the buildings there is really no way to stop the bleeding? It's not like they flip a switch and the buildings get better they're destroyed/damaged. Systems are compromised to some degree. Is this plant either in for a prolonged low level leak situation best case? How do you move spent rods when the apparatus to do so got blown up? How do you 'fix' broken containment?

I suspect that's the big difference between singapore saying 100km and Japan saying 20.

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TEPCO dude exact qoute: we believe we saw a small amout of steam after the water pump operation, indicating a cooling effect

White smoke + steam always good at a fire! Someone was saying yesterday that you can't compare radioactive elements burning to a house fire.. but no one has really presented anything to prove otherwise! It has been good we have seen steam, keep the steam coming.. water is getting in there

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White smoke + steam always good at a fire! Someone was saying yesterday that you can't compare radioactive elements burning to a house fire.. but no one has really presented anything to prove otherwise! It has been good we have seen steam, keep the steam coming.. water is getting in there

which reactor is it out of though? Weren't they spraying on reactor 4? Which I interpreted as the most stable one to begin with?

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White smoke + steam always good at a fire! Someone was saying yesterday that you can't compare radioactive elements burning to a house fire.. but no one has really presented anything to prove otherwise! It has been good we have seen steam, keep the steam coming.. water is getting in there

but there is no ongoing fire....would colder water poured onto hot water create steam?(meaning the pool is still pretty full) or does this mean the water that was pumped hit something solid(ie very hot steel or exposed fuel rod) and turned into steam

post above: they poured in onto 3

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White smoke + steam always good at a fire! Someone was saying yesterday that you can't compare radioactive elements burning to a house fire.. but no one has really presented anything to prove otherwise! It has been good we have seen steam, keep the steam coming.. water is getting in there

congrats on your degree in nuclear engineering

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TEPCO dude exact qoute: we believe we saw a small amout of steam after the water pump operation, indicating a cooling effect

You have to laugh at these idiots to think that type of comment would be appeasing in 2011.....on a global new wire.

Hence the problem with old school big corps and even Govt.......they never grew up with the people.

TEPCO thinks they are speaking to the rice farmers and that's it.....

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but there is no ongoing fire....would colder water poured onto hot water create steam?(meaning the pool is still pretty full) or does this mean the water that was pumped hit something solid(ie very hot steel or exposed fuel rod) and turned into steam

post above: they poured in onto 3

Well, likely this steam is caused by air temp or normal water touching the hotter objects or rods...

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I'm automatically wrong because I don't have a degree

im just not sure you're on to much. water + hot substance creates steam. steam does not necessarily mean things are going the right direction.

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