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Message from discussion Only of interest to USA citizens...
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JRStern  
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 More options Oct 13 2012, 12:15 pm
Newsgroups: rec.arts.sf.written
From: JRStern <JRSt...@foobar.invalid>
Date: Sat, 13 Oct 2012 09:15:33 -0700
Local: Sat, Oct 13 2012 12:15 pm
Subject: Re: Only of interest to USA citizens...
On Sat, 13 Oct 2012 02:06:21 -0500, Bill Snyder <bsny...@airmail.net>
wrote:

>On Fri, 12 Oct 2012 18:01:20 -0700, JRStern
><JRSt...@foobar.invalid> wrote:

>>On Fri, 12 Oct 2012 17:42:30 -0500, Bill Snyder <bsny...@airmail.net>
>>wrote:

>>>>>> As they say, close enough for government work.

>>>Check out "pebble-bed" reactors.

>>I think I did say so way upthread, it was certainly one design I had
>>in mind, again (and I won't even check on Wikipedia) such proposals
>>are decades old, but other than maybe a proof of concept I don't think
>>they've ever been in real production.  I have vague recollections of
>>articles dozens of years ago on why not, remaining design issues, and
>>the fuel cycle thing for the pebbles.  Or, are they using them already
>>in France or somewhere?

>>Goddamn Google anyway you can never just mention something and let it
>>drift, ...

>>http://www.thebulletin.org/web-edition/features/the-demise-of-the-peb...
>>http://en.wikipedia.org/wiki/Pebble_bed_reactor

>>Yeah, close enuf.

>I see one of those URL's has the word "demise" in it.  Seems a tad
>overstated, to say the least.  Not up-to-the-minute, but a couple
>of years more recent news:

><http://www.nytimes.com/2011/03/25/business/energy-environment/25china...>

>"SHIDAO, China While engineers at Japan s stricken nuclear power
>plant struggle to keep its uranium fuel rods from melting down,
>engineers in China are building a radically different type of
>reactor that some experts say offers a safer nuclear alternative."

I had not looked at the status of pebble bed projects in many years.
It's not encouraging.  I'd have to get into serious research mode to
have much of an informed opinion on this report of a new Chinese
effort, sounds on the surface just like the ones that have previously
failed.  Y'know, nature just seems to be like that, if you want to
generate a gigawatt of power there are just no real easy answers.

"Helium-cooled" just doesn't sound like the design is ever going to be
simple.

J.


 
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