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Title: Why I am not worried about Japan’s nuclear reactors.
Source: Dr Josef Oehmen, a research scientist at MIT
URL Source: http://morgsatlarge.wordpress.com/2 ... about-japans-nuclear-reactors/
Published: Mar 13, 2011
Author: Dr Josef Oehmen
Post Date: 2011-03-13 22:20:19 by go65
Keywords: None
Views: 9199
Comments: 17

I am writing this text (Mar 12) to give you some peace of mind regarding some of the troubles in Japan, that is the safety of Japan’s nuclear reactors. Up front, the situation is serious, but under control. And this text is long! But you will know more about nuclear power plants after reading it than all journalists on this planet put together.

There was and will *not* be any significant release of radioactivity.

By “significant” I mean a level of radiation of more than what you would receive on – say – a long distance flight, or drinking a glass of beer that comes from certain areas with high levels of natural background radiation.

I have been reading every news release on the incident since the earthquake. There has not been one single (!) report that was accurate and free of errors (and part of that problem is also a weakness in the Japanese crisis communication). By “not free of errors” I do not refer to tendentious anti-nuclear journalism – that is quite normal these days. By “not free of errors” I mean blatant errors regarding physics and natural law, as well as gross misinterpretation of facts, due to an obvious lack of fundamental and basic understanding of the way nuclear reactors are build and operated. I have read a 3 page report on CNN where every single paragraph contained an error.

We will have to cover some fundamentals, before we get into what is going on.

Click for Full Text!

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Begin Trace Mode for Comment # 12.

#11. To: go65 (#0)

I am writing this text (Mar 12) to give you some peace of mind regarding some of the troubles in Japan, that is the safety of Japan’s nuclear reactors. Up front, the situation is serious, but under control. And this text is long! But you will know more about nuclear power plants after reading it than all journalists on this planet put together.

What bullshit.

Decay heat on the two reactors melted the fuel cells, releasing active fuel into the primary coolant. With the ruptured pipes, the fuel was then released into the atmosphere, entrained in the steam.

Bad news. While U-235 has a long half-life- which is good- when it's ingested or inhaled as particulate, it does particularly nasty things to live tissue.

The worst part will be activated fission-fragments that escape, with relatively short half-lives, before beta-decaying into more germane isotopes. If you were to inhale some of those buggers, the experience can have bad consequences.

The journalists don't know diddley shit about reactors. Neither does the author of this article- as soon as you get to the sentence "There was and will *not* be any significant release of radioactivity," it's obvious.

And yes, I DO know what I'm talking about... I trained on the Nautilus prototype reactor (S1W) and was plant operator on an S5W-equipped spook-boat. So yeah, I am qualified to analyze the situation...

The sea-water being pumped in, is to cool the fuel cells to prevent melt-down due to decay heat. The good news is that the majority source of the decay heat should subside within about 72 hours.

Capitalist Eric  posted on  2011-03-14   9:48:48 ET  Reply   Untrace   Trace   Private Reply  


#12. To: Capitalist Eric, mcgowanjm (#11)

Eric, Jim.

Jim, Eric.

Biff Tannen  posted on  2011-03-14   9:58:25 ET  Reply   Untrace   Trace   Private Reply  


Replies to Comment # 12.

#13. To: Biff Tannen (#12)

BWHAAHAHAHAHAHA

need to get up to speed there, Tan.

Eric hates me as a 'socialist'. Couldn't brand me a commie cause even CE realizes that's dead.

" #1048694

Banzai7, who is in Hong Kong, told me his broadband was been very slow since the tsunami. Another contact on the mainland told me the same thing. The assumption was just heavy traffic, but maybe it's more than that.

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by CPL on Sun, 03/13/2011 - 22:39 #1048711

It's a major hub. Same thing would happen if Denver, Chicago, Liverpool, Paris, Amesterdam, etc. Went up in smoke.

the guy that runs ricefarmer.blogspot.com is in Japan and managed to get a post up mentioning that there is only three hours of power a day...even then.

mcgowanjm  posted on  2011-03-14 10:23:54 ET  Reply   Untrace   Trace   Private Reply  


End Trace Mode for Comment # 12.

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