公開日: 2013/05/31
小出裕章さんが熱く小沢一郎代表に語ります。福島第一原発事故の本当の姿を。そこで働
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Nuclear Power plant Fukushima Japan spent fuel pool number 4 Risk
公開日: 2013/08/14
I posted this not to showcase ARnie, but to flood youtube with any and all fukushima news, old or new. this event is not over now nor will it end in the next thousand years and the tepco water wall makes the already fragile buildings in greater risk of collapse and that means the spent fuel rods are ever more at risk.
remix from 8-14-12
Fire & Risk at Nuclear Power plant Fukushima Japan spent fuel pool number 4
Published on Aug 19, 2012
Can Spent Fuel Pools Catch Fire?
http://fairewinds.org/content/can-spe...
Chief Engineer Arnie Gundersen analyzes a US government national laboratory simulation video that shows nuclear spent fuel rods do catch fire when exposed to air. This simulation video proves Fairewinds' assertions that nuclear fuel rods can catch fire when exposed to air, and Arnie discusses the ramifications of this phenomena if the Fukushima Daiichi Unit 4 spent fuel pool were to lose cooling water.
Zircaloy can burn in air if it gets hot enough. And it is called pyrophoric,
There are 4 reactors in jeopardy at Fukushima-Daiichi. But everyone's attention now has been focused on the fuel pool at Fukushima-Daiichi Unit 4. Why is that? Well, in the Mark I design, there is no containment over the fuel pool. And that means that if there is a problem in the fuel pool, there is nothing to trap the radiation and prevent it from going airborne. At Fukushima-Daiichi, Unit 4 though, an entire nuclear fuel core had just recently been removed from the containment, from the nuclear reactor, and was put into the spent fuel pool. That is what makes Daiichi Unit 4 unique. It has got an entire nuclear core, out of the reactor, out of the containment, and in the fuel pool. Related to that though, is the fact that Fukushima-Daiichi 4 is also damaged. There is a bulge in the bottom of it and I believe it is something called a first mode Euler strut bulge. And it clearly is an indication of a seismic damage. This is not something that happened from the explosion. The building has been damaged from a seismic event. So Daiichi Unit 4 has an entire nuclear core out of the containment in a spent fuel pool and the building it is housed in, has been previously damaged by the explosions in the building and by the seismic events that occurred since March 11th of 2011. That is why all eyes in the world are focussed on what is going on in Fukushima Daiichi Unit 4.
The Nuclear Regulatory Commission wanted to know if a fuel bundle can burn in air too. And they commissioned Sandia National Labs to run a test. Just by coincidence, the test was done about 2 weeks before the Fukushima-Daiichi accident. Now this was a test of a nuclear fuel bundle, but I need to be clear: there was no spent nuclear fuel in the bundle.
There's an enormous amount of data collected in these 5 hours and all of it is on the Sandia site which we linked to/from the Fairewinds site. The first video shows a bundle immediately before the heat was applied. Shortly after, it's the same bundle, the heat is on, and it's already beginning to smoke. A little further on is the bundle, again, smoking considerably. Well, where's there smoke there is fire. The last one in the sequence shows the bundle on fire. Now, what you're seeing is zircaloy burning in air. There was no match applied to start this fire, it just got hot enough so that it began to combust of its own volition - in air.
Regardless of what the nuclear industry claims, a fuel pool fire is possible if the water were to drain from a seismic event. Now this is not just a Fukushima-Daiichi Unit 4 problem. There are 23 Mark I reactors in the United States and they have even more nuclear fuel in them than Unit 4 at Fukushima-Daiichi. This is an international problem, especially in the United States, because we have the most of these Mark I reactors. What can we do about it? We can put the pressure on Tokyo Electric and on the Japanese Government to get the fuel out of that pool just as quickly as possible. We cannot wait for an earthquake to be proven right or wrong. In the United States, we can demand that the Nuclear Regulatory Commission take the fuel out of these fuel pools in the 23 nuclear reactors that are identical to Fukushima-Daiichi. Right now, industry pressure to save money is preventing those fuel pools from being emptied.
remix from 8-14-12
Fire & Risk at Nuclear Power plant Fukushima Japan spent fuel pool number 4
Published on Aug 19, 2012
Can Spent Fuel Pools Catch Fire?
http://fairewinds.org/content/can-spe...
Chief Engineer Arnie Gundersen analyzes a US government national laboratory simulation video that shows nuclear spent fuel rods do catch fire when exposed to air. This simulation video proves Fairewinds' assertions that nuclear fuel rods can catch fire when exposed to air, and Arnie discusses the ramifications of this phenomena if the Fukushima Daiichi Unit 4 spent fuel pool were to lose cooling water.
Zircaloy can burn in air if it gets hot enough. And it is called pyrophoric,
There are 4 reactors in jeopardy at Fukushima-Daiichi. But everyone's attention now has been focused on the fuel pool at Fukushima-Daiichi Unit 4. Why is that? Well, in the Mark I design, there is no containment over the fuel pool. And that means that if there is a problem in the fuel pool, there is nothing to trap the radiation and prevent it from going airborne. At Fukushima-Daiichi, Unit 4 though, an entire nuclear fuel core had just recently been removed from the containment, from the nuclear reactor, and was put into the spent fuel pool. That is what makes Daiichi Unit 4 unique. It has got an entire nuclear core, out of the reactor, out of the containment, and in the fuel pool. Related to that though, is the fact that Fukushima-Daiichi 4 is also damaged. There is a bulge in the bottom of it and I believe it is something called a first mode Euler strut bulge. And it clearly is an indication of a seismic damage. This is not something that happened from the explosion. The building has been damaged from a seismic event. So Daiichi Unit 4 has an entire nuclear core out of the containment in a spent fuel pool and the building it is housed in, has been previously damaged by the explosions in the building and by the seismic events that occurred since March 11th of 2011. That is why all eyes in the world are focussed on what is going on in Fukushima Daiichi Unit 4.
The Nuclear Regulatory Commission wanted to know if a fuel bundle can burn in air too. And they commissioned Sandia National Labs to run a test. Just by coincidence, the test was done about 2 weeks before the Fukushima-Daiichi accident. Now this was a test of a nuclear fuel bundle, but I need to be clear: there was no spent nuclear fuel in the bundle.
There's an enormous amount of data collected in these 5 hours and all of it is on the Sandia site which we linked to/from the Fairewinds site. The first video shows a bundle immediately before the heat was applied. Shortly after, it's the same bundle, the heat is on, and it's already beginning to smoke. A little further on is the bundle, again, smoking considerably. Well, where's there smoke there is fire. The last one in the sequence shows the bundle on fire. Now, what you're seeing is zircaloy burning in air. There was no match applied to start this fire, it just got hot enough so that it began to combust of its own volition - in air.
Regardless of what the nuclear industry claims, a fuel pool fire is possible if the water were to drain from a seismic event. Now this is not just a Fukushima-Daiichi Unit 4 problem. There are 23 Mark I reactors in the United States and they have even more nuclear fuel in them than Unit 4 at Fukushima-Daiichi. This is an international problem, especially in the United States, because we have the most of these Mark I reactors. What can we do about it? We can put the pressure on Tokyo Electric and on the Japanese Government to get the fuel out of that pool just as quickly as possible. We cannot wait for an earthquake to be proven right or wrong. In the United States, we can demand that the Nuclear Regulatory Commission take the fuel out of these fuel pools in the 23 nuclear reactors that are identical to Fukushima-Daiichi. Right now, industry pressure to save money is preventing those fuel pools from being emptied.
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FUKUSHIMA DAIICHI UNIT 4 NUCLEAR REACTOR+WATER POOL
アップロード日: 2011/11/28
説明はありません。
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