Rimersburg
http://www. nytimes. com/2011/03/22/world/…The reason I ask is that in this photograph of Unit No. 3, there appears to be very little left but smoldering ruins. Is this part just the outer shell, and is the actual containment vessel underground?
East Palo Alto
Here is an informative article describing the situation, it also has some diagrams: http://bravenewclimate. com/2011/03/13/fu…Note that the explosions were hydrogen gas explosions and were outside the containment vessel (unlike Chernobyl which had the hydrogen gas explosion inside the containment vessel because of poor reactor design). They blew away the outer shell of the building, but that's not part of the containment process. Given that the forty year old power plants were first subject to an earthquake five times the force they were designed for and then they were hit with a tsunami, they're actually doing incredibly well. It says a lot for the safety of nuclear power.
Atwood
Good question, but my understanding is the containment building is above ground and intact. I suspect the picture just doesn't show the containment building. The areas in the most trouble, from what I've read, were the spent fuel storage pools, which would be outside the containment building. The explosion (non-nuclear) might have cause the ruin shown in the picture. I would not trust the N. Y. Times to show an informative (rather than argumentative) picture.
Teaticket
nope all 6 are top ground see pic from google search. IT'S DOMED i call it operation sandman drop sand bag full of lead in the holes and make a concrete dome around the core's and fill it with concrete and a foot of lead on the outside to keep the radiation leakage low. http://www. techmagdaily. com/google-earth…http://www. wired. co. uk/news/archive/2011…http://www. bighaber. com/haber/3-nuclear-…
Showing posts with label nuclear reactors in japan. Show all posts
Showing posts with label nuclear reactors in japan. Show all posts
How is the radioation leaking from the nuclear reactors in japan?
Oak Hill
what is the reason of the radio ation being leaked in japan? what is wrong with the reactors?
Houston Lake
What's radio ation?
Dike
What is wrong with the power plants is that they were in an earthquake five times as strong as the level they were designed for and then got hit by a giant tsunami. Actually, they've stood up really well considering what happened. Here is an informative article describing the situation:http://bravenewclimate. com/2011/03/13/fu…And here is where you find current, factual status information:http://www. iaea. org/newscenter/news/tsun…And here is a chart that helps make sense of the numbers:http://www. xkcd. com/radiation/
Mapleton
In short: Cooling got shut off to places like the containment and spent fuel rod pool. This caused heat to build up which eventually damaged the structure exposing radioactive material to the outside air.
Dooling
We are not scientists - we only see what you see on the news
what is the reason of the radio ation being leaked in japan? what is wrong with the reactors?
Houston Lake
What's radio ation?
Dike
What is wrong with the power plants is that they were in an earthquake five times as strong as the level they were designed for and then got hit by a giant tsunami. Actually, they've stood up really well considering what happened. Here is an informative article describing the situation:http://bravenewclimate. com/2011/03/13/fu…And here is where you find current, factual status information:http://www. iaea. org/newscenter/news/tsun…And here is a chart that helps make sense of the numbers:http://www. xkcd. com/radiation/
Mapleton
In short: Cooling got shut off to places like the containment and spent fuel rod pool. This caused heat to build up which eventually damaged the structure exposing radioactive material to the outside air.
Dooling
We are not scientists - we only see what you see on the news
Will radiation emitted from the nuclear reactors in japan turn people into super mutants?
St. Joe
You know like turning green, talking slow and dumb, wielding clubs and hunting rifles.
Clarence
You have watched too many movies. You'll get more radiation from your microwave oven. Here is a factual article: http://bravenewclimate. com/2011/03/13/fu…
Madisonville
you dummy, japan needs to be taken seriously, not turned into a idiodic joke!
Perry
Time will only tell. But I hope their government will avoid this situation where babies are born with unspeakable health conditions that cause nothing but suffering and death. We will know in the next 5 - 10 yrs from now. My God Protect The Nation Of Japan
Gilroy
as a founding member and lead scientist of the chernobyl international monitoring committee I'm afraid to report that we have we have not yet seen any evidence of this, although many of us are still hopeful.
Clinton
NopeThey will just die a horrible deathSo please don't fun of this event. Next time it could be you!!!Cheers from DOWNUNDER
You know like turning green, talking slow and dumb, wielding clubs and hunting rifles.
Clarence
You have watched too many movies. You'll get more radiation from your microwave oven. Here is a factual article: http://bravenewclimate. com/2011/03/13/fu…
Madisonville
you dummy, japan needs to be taken seriously, not turned into a idiodic joke!
Perry
Time will only tell. But I hope their government will avoid this situation where babies are born with unspeakable health conditions that cause nothing but suffering and death. We will know in the next 5 - 10 yrs from now. My God Protect The Nation Of Japan
Gilroy
as a founding member and lead scientist of the chernobyl international monitoring committee I'm afraid to report that we have we have not yet seen any evidence of this, although many of us are still hopeful.
Clinton
NopeThey will just die a horrible deathSo please don't fun of this event. Next time it could be you!!!Cheers from DOWNUNDER
Why and how did the nuclear reactors in japan fukushima partially meltdown?
Luther
i need an answer quick! Why and how did the nuclear reactors introduce Japan (Fukushima) partially meltdown? divert include full and precise widen. Information forth a website please as i have to write a bibliography regarding each reply. I backside't remember hugely but our don vocalized something involving the tsunami and earthquake (obviously), cool air, a fuel pool, leaks, fuel rods had to do with this. thanks!
Hartford
In nuclear reactors, the "fuel" is a fissionable substance such as uranium235. Typically uranium is enriched to about 3% uranium235 & then used in the form of UO2 pellets. These enriched uranium pellets are encased in zirconium or stainless steel tubes. Rods composed of materials such as cadmium or boron control the fission process by absorbing neutrons. These control rods regualte the flux of neutrons to keep the reaction chain self-sustaining while preventing the reactor core from overheating. The reactor is started by a neutron-emitting source; it is stopped by inserting the control rods more deeply into the reactor core, the site of the fission. The reactor core also contains a moderator which acts to slow down the neutrons so that thay can be captured more readily by the fuel. A cooling liquid circulates through the reactor core to carry off the heat generated by the nuclear fission. Most of the time the reactor core which contains the control rods, fuel rods & circulating cooling fluid cannot reach supercritical levels and explode which the violence of an atomic bomb (full meltdown) because the concentration of uranium 235 is too low. However if the core overheats sufficient damage might be done to release radioactive materials into the environment (partial meltdown) which is what is happening in the case of Japan. The tsunami & earthquake has damaged the electrical connections in the reactor, the primary coolant which passes through the core is in low levels in the reactor core. Hence the fuel rods faces a risk of overheating & burning their way through the steel pressure vessel reactor core they are confined in. That is why Japan is trying hard now to pour seawater into the plant to keep the fuel rods inside the reactor core from being exposed to the air where they could reach critical stage and go into full meltdown.
Rosalie
Here is an informative article describing the situation:http://bravenewclimate. com/2011/03/13/fu…And here is where you find current, factual status information:http://www. iaea. org/newscenter/news/tsun…And here is a chart that helps make sense of the numbers:http://www. xkcd. com/radiation/Polly, great answer, but one point. The seawater has now been replaced with freshwater, except for the storage pools.
Parkton
Made in America. Look up GE BWE reactors and their design flaw on CNN or google.
i need an answer quick! Why and how did the nuclear reactors introduce Japan (Fukushima) partially meltdown? divert include full and precise widen. Information forth a website please as i have to write a bibliography regarding each reply. I backside't remember hugely but our don vocalized something involving the tsunami and earthquake (obviously), cool air, a fuel pool, leaks, fuel rods had to do with this. thanks!
Hartford
In nuclear reactors, the "fuel" is a fissionable substance such as uranium235. Typically uranium is enriched to about 3% uranium235 & then used in the form of UO2 pellets. These enriched uranium pellets are encased in zirconium or stainless steel tubes. Rods composed of materials such as cadmium or boron control the fission process by absorbing neutrons. These control rods regualte the flux of neutrons to keep the reaction chain self-sustaining while preventing the reactor core from overheating. The reactor is started by a neutron-emitting source; it is stopped by inserting the control rods more deeply into the reactor core, the site of the fission. The reactor core also contains a moderator which acts to slow down the neutrons so that thay can be captured more readily by the fuel. A cooling liquid circulates through the reactor core to carry off the heat generated by the nuclear fission. Most of the time the reactor core which contains the control rods, fuel rods & circulating cooling fluid cannot reach supercritical levels and explode which the violence of an atomic bomb (full meltdown) because the concentration of uranium 235 is too low. However if the core overheats sufficient damage might be done to release radioactive materials into the environment (partial meltdown) which is what is happening in the case of Japan. The tsunami & earthquake has damaged the electrical connections in the reactor, the primary coolant which passes through the core is in low levels in the reactor core. Hence the fuel rods faces a risk of overheating & burning their way through the steel pressure vessel reactor core they are confined in. That is why Japan is trying hard now to pour seawater into the plant to keep the fuel rods inside the reactor core from being exposed to the air where they could reach critical stage and go into full meltdown.
Rosalie
Here is an informative article describing the situation:http://bravenewclimate. com/2011/03/13/fu…And here is where you find current, factual status information:http://www. iaea. org/newscenter/news/tsun…And here is a chart that helps make sense of the numbers:http://www. xkcd. com/radiation/Polly, great answer, but one point. The seawater has now been replaced with freshwater, except for the storage pools.
Parkton
Made in America. Look up GE BWE reactors and their design flaw on CNN or google.
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