Skip to comments.Why I am not worried about Japan’s nuclear reactors
Posted on 03/13/2011 9:24:12 AM PDT by Qbert
click here to read article
We have our hysteria, its ours, we worked for it, we earned it and nobody is going to take it away!
Fascinating stuff - thanks for posting.
” But you will know more about nuclear power plants after reading it “.
And I thank you for that Qbert,
Best... Analysis... Yet...
Thank you. Very interesting.
Thanks for the post, but I’ll be damned before I hang out near that plant.
Afterthought . . . maybe your knowledge could be used in a constructive way to clean up the mess (among others) left at Hanford, Washington.
The Japanese BWRs do not have a core catcher. There is nothing like that incorporated in GE’s design unless it was some sort of add-on. At TMI the internals in the reactor including the fuel rods, control rods and the stainless steel rack support structures completely melted. All of that ended up in the bottom of the reactor looking like a pile of rubble. The reactor (4” thick steel) was never breached.
Excellent post. Thanks.
I agree. Thanks Qbert and thank to Dr Josef Oehmen.
Good post. Mostly accurate.
I agree. Thanks Qbert and thanks to Dr Josef Oehmen.
I wish this could be posted on the Front Page, I am SO tired of the chicken Littles on every quake thread on FR....
I bow to your excellent post.
Love the fact that the material has a half life of mere seconds and is not really a threat.
Further, the entire containment system and Dr. Oehmen’s explanation is superb.
Now I can go on about my day and give a quick tutorial to others, hopefully giving them ease of mind.
Just to clarify, I’m not the author of the blog- I just felt it was important to post this because there seems to be a lot of misinformation floating around the Internet about the reactors.
(I will be speaking this week with a friend of mine whose father is a nuclear scientist, and will try to see if he has any further information that may be helpful.)
Oh no! Can't let *that* happen. If he did, then people would no longer be alarmed, and they [gasp] might stop watching 24-hour news! The loss of advertising revenue! Think of the loss of revenue!
The reporting has been atrocious.
Can anyone verify there is, in fact, a 3rd containment at the reactor in question?
Also, what is the half-life of the radioactive isotopes of iodine and cesium to which the doctor refers? These numbers did not appear in the article (or, perhaps I just missed them). These would seem to be somewhat of importance, as radioactive cesium is oftentimes mentioned as the principal nasty agent in a (putative) terrorist dirty-bomb attack.
Thank you for any corrections/information you can add, and FReegards!
Thnaks for this.
Thanks for this.
Ok this makes more sense than the “diesel fuel was contaiminated with seawater” line from yesterday.
Did anyone else have to look up the word "tendentious?" Or am I just the product of a State educational system? :-)
I vote for this thread, because it was posted in full. :-)
First, the GE BWR-1 reactor in question has NO 3rd containment. If the "pressure cooker" is breached, the fuel is exposed to the environment.
Secondly, Cesium-137 has a 30yr half-life. If you were to get a big breath full of that steam, you would likely have health problems, if not serious health problems. That's not to say it was concentrated or didn't adequately disperse at sea.
When the earthquake hit with 8.9, the nuclear reactors all went into automatic shutdown. Within seconds after the earthquake started, the moderator rods had been inserted into the core and nuclear chain reaction of the uranium stopped. Now, the cooling system has to carry away the residual heat. The residual heat load is about 3% of the heat load under normal operating conditions.
Good post overall, but the earthquake was 8.9 at the epicenter, not where the nuclear reactors are.
THIS IS WHY I LOVE Free Republic!
Lots of accurate, comprehensive information, usually with references.
Thanks for posting, Qbert!
Cesium 137 is a lot less radioactive, it has a half life of about 30 years. As far as I know, it doesn't have a special affinity for a specific organ or tissue
I am a perfect example of how partial knowledge can be dangerous. I nod to better information. My profs would’ve had my ass for some of my thoughts. Great info.
Cesium is in the same grouping on the periodic chart (1A) as sodium and potassium and therefore could be found anywhere those two elements (or their salts) are found. In other words, just about everywhere.
I wouldn’t go so far as to call it “BS”. That seems a bit harsh to a rather reasoned explanation by someone trying to help people to chill out, which is badly needed.
Let’s be charitable and call it inaccurate while we wait to see. As you implied, there is a lot of good info here.
If the author made an honest error which might invalidate the core of his analysis, then that will be apparent.
It has been a while for me, but I do recall Cs-137 is very dangerous when inhaled or ingested. That was the case in South America when some people found a discarded medical source in a dump and broke it open to see what was inside.
Yes, it’s a really dangerous gamma and beta source, but much less radioactive than iodine 131.
OK, but nothing mentioned to reduce the threat of Mothra.
ping good post
“First, the GE BWR-1 reactor in question has NO 3rd containment. If the “pressure cooker” is breached, the fuel is exposed to the environment.”
From where are you getting this information?
I think he is correct on this, containment appears to be a identified weakness in this circa 1971 design.
Time,distance & shielding.....
“I think he is correct on this, containment appears to be a identified weakness in this circa 1971 design.”
—I’m just correcting the claim that the Fukushima reactors are BWR-1 types. They’re actually all BWR-3 and higher:
As for containment flaws with this design- could well be, I don’t know. I’ll defer to the experts here.
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