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Slideshow: Profs Say Fukushima Plant Passed Ultimate Test

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bills0
User Rank
Iron
Re: Good news for nuclear
bills0   4/29/2013 6:26:32 PM
Westinghouse does not make an APS2000. You probably mean the AP1000.

 

Design approval does not mean that the plant is immune to mandated changes for new safety requirements as time goes on.

 

Some of the problems that were identified in the Fukashima installation were addressed in the US after the 911 attacks. Some if the issues that make the Japanese plants vulnerable to tsunami were also things that were identified as making plant more vulnerable to terrorist attack. Also the cooling system of the AP1000 is much improved over the 40 year old plants in Japan so some of those issues had already been address as well.





Debera Harward
User Rank
Silver
Re: Good news for nuclear
Debera Harward   4/29/2013 5:19:33 PM
These nuclear radiations are very harmfull and very common,  example is of hiroshima the whole world is aware of it  .I have come across that radiations received by single employee per hour in fukushima plant is equivalent to total quantity of radiations received in their career.

NiteOwl_OvO
User Rank
Gold
Re: Good news for nuclear
NiteOwl_OvO   4/29/2013 4:58:22 PM
Bills0,

The WHO apparantly has a signed agreement with the International Atomic Energy Agency (IAEA) to get their approval for any research and/or public statements concerning Nuclear Power. The IAEA is a known nuclear power proponent. Their own stated objective is "The agency shall seek to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity through the world." That's pretty much the definition of pro-nuclear. Your 4000 deaths number comes from the WHO and was approved by the IAEA. You talk about bogus reports. I choose to trust three noted Russian experts who have actually been involved over a bunch of armchair experts with pro-nuclear agendas.

The NRC doesn't license any Coal Burning Power Plants. Your statement doesn't make sense.

I'm worried about TMI because I have kids. In spite of the fact that TMI has a system for warning the public about significant issues, like exposing the core or venting radioactive steam into the air we had to find out about those details on the national news 2 days after it happened. I'm also worried about TMI because a friend of mine with a degree in nuclear physics, who used to work for the DOE and he used to inspect nuclear power plants tells me I should be. Done.

Mwitthof
User Rank
Bronze
Re: Test pass is correct
Mwitthof   4/29/2013 4:56:06 PM
How much worse could it have been given a magnitude 9 megathrust quake followed by a tsunami?

It should be said that the building itself should not be standing, and the 3 reactors online should have all melted down regardless. If seawater was applied sooner, (reactors be damned) then they would not have melted down at all.

The major error was having generators at or below ground level, which allowed the flooding to cause the failsafe to in essence fail.

These are lessons, and as history is written this can be used to make sites such as this impervious to disasters the likes of which have not been seen on our shores ever  (in recorded history 1906 was only 7.8).

ab3a
User Rank
Platinum
Re: World Trade Center
ab3a   4/29/2013 4:39:50 PM
Would you rather have the devil you think you know now? Or would you rather take a chance on actual improvements? 

No new project is ever without startup problems. There will be problems here too. However, many nuclear power plants are nearing the end of their functional design lifetimes and more than a few have been extended past that. Something has got to give.

Would you rather spew more coal pollution in to the water and atmosphere? Would you rather go fracking for natural gas?

There are tradeoffs and it has to be said that we need a diversity of energy sources.  The Not-this, Nor-that, and No-Way are we doing those things attitude of the so-called environmentalist movement is a non-starter. We have some tough choices to make and nuclear energy can not be left off the table. Let's make the best of it. 


Jake Brodsky

patb2009
User Rank
Gold
Re: Test pass is correct
patb2009   4/29/2013 3:39:15 PM
"it seems that this plant did indeed contain a vast amount of radaition when put under unbelievable stress"

 

yes, but the vast amount released is awful

patb2009
User Rank
Gold
Re: World Trade Center
patb2009   4/29/2013 3:37:42 PM
"There are new plant designs that are more fail-safe"

 

They just have new and unexpected ways to fail

William K.
User Rank
Platinum
Safe, but there was a meltdown, wasn't there?
William K.   4/29/2013 2:53:01 PM
So we hear that the nuclear power plant did not spill any radioactivity during the massive failure. But there was still that huge design flaw, the inability to maintain cooling long enough to do an orderly shutdown. That does not fit the description of a "minor design flaw". but more like "A screaming design failure", and it should not be ignored. A large tsunami and an earthquake may be classed as unusual things that may reasonably have been overlooked, but a failure of the external power source is something that should have been anticipated as happening on a regular basis. Power supply failures happen all the time, and so the plant should have been designed to survive that problem. All that would have been required would be to build the plant at a lower level so that gravity-fed seawater could have been used for cooling in an emergency. The ocean does not often fail to be an adequate source of seawater, and so that secondary backup choice would have prevented the meltdown, and the recovery would have been much simpler and a lot faster.

I do give the design of the containment system a lot of credit, but that was only half of what was needed.

bills0
User Rank
Iron
Re: Good news for nuclear
bills0   4/29/2013 2:47:36 PM
NightOwl,

There are a lot of bogus reports about the Chernobyl accident. The 980,000 number for the number of long term deaths is just something someone made up. There is no scientific support for it. The number that appears in peer reviewed scientific journals is a maximum of 4000, which is still a lot.


Second, I don't see why you are worried about the TMI plant and not the coal plants since one of the pollutants from the coal plants is radiation. Most coal contains small amounts of uranium and thorium and is in the ash when it is burned. In fact some coal plants could not be licensed by the Nuclear Regulatory Commission because they could not meet the radiation limits for emissions.


Anyone,

Does anyone have an idea on why the professor in the article was only measuring cesium in the population? Cesium is highly soluble in water and would quickly be purged from the human body. It would seem to me that the biggest long term worry would the strontium 90. It is a calcium analog and would accumulate in the bones and it is not easily eliminated from the body.

 

curious_device
User Rank
Gold
Re: Good news for nuclear
curious_device   4/29/2013 2:39:39 PM
Regarding the points made in the article and comments, saying that it "passed the ultimate test" is a great example of academic MINBY-ism. It minimizes the trauma and loss of mass relocations and the heavy price that the public will have to pay for the perpetual cleanup in a country that can't afford to lose any of it's land, etc.

It doesn't matter what technology you use in a high-cost, high-risk systems. In the end the risk comes from corrupt owners, builders, contractors and regulators.

Diablo Canyon is on the coast, on a fault, and not built to withstand the risks it faces.

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