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	<title>Comments on: Is Nuclear Oversight Getting More Lax to Accommodate Aging Reactors?</title>
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		<title>By: Anonymous</title>
		<link>http://cleantechnica.com/2011/06/23/is-nuclear-oversight-getting-more-lax-to-accommodate-aging-reactors/#comment-101334</link>
		<dc:creator><![CDATA[Anonymous]]></dc:creator>
		<pubDate>Fri, 24 Jun 2011 19:33:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=28533#comment-101334</guid>
		<description><![CDATA[Color me skeptical.

Until Rossi turns his device over to a few independent university labs for testing I&#039;m not betting he&#039;s got the answer.

Remember, a lot of people were convinced that Uri Gellher was bending spoons with his mind until someone made the trick public.

You can fool some of the people some of the time even if they have good credentials....]]></description>
		<content:encoded><![CDATA[<p>Color me skeptical.</p>
<p>Until Rossi turns his device over to a few independent university labs for testing I&#8217;m not betting he&#8217;s got the answer.</p>
<p>Remember, a lot of people were convinced that Uri Gellher was bending spoons with his mind until someone made the trick public.</p>
<p>You can fool some of the people some of the time even if they have good credentials&#8230;.</p>
]]></content:encoded>
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		<title>By: Anonymous</title>
		<link>http://cleantechnica.com/2011/06/23/is-nuclear-oversight-getting-more-lax-to-accommodate-aging-reactors/#comment-101324</link>
		<dc:creator><![CDATA[Anonymous]]></dc:creator>
		<pubDate>Fri, 24 Jun 2011 15:38:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=28533#comment-101324</guid>
		<description><![CDATA[lol, you did it again :D]]></description>
		<content:encoded><![CDATA[<p>lol, you did it again <img src="http://cleantechnica.com/wp-includes/images/smilies/icon_biggrin.gif" alt=":D" class="wp-smiley" /></p>
]]></content:encoded>
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		<title>By: Anonymous</title>
		<link>http://cleantechnica.com/2011/06/23/is-nuclear-oversight-getting-more-lax-to-accommodate-aging-reactors/#comment-101321</link>
		<dc:creator><![CDATA[Anonymous]]></dc:creator>
		<pubDate>Fri, 24 Jun 2011 14:13:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=28533#comment-101321</guid>
		<description><![CDATA[Sarcasm?  What sarcasm?

There&#039;s no damn sarcasm in my post.

America is falling behind.  We&#039;re in danger of no longer being Number One.

First the Ruskies and now that little Japanese island have shown us up with their impressive reactor meltdowns.  We took a shot at it and didn&#039;t ruin any large tracts of land with our puny little Three Mile Island meltdown.  

Shame is upon us.

We need a great big meltdown to regain pride in our great land.  And the best way to get the disaster we need is to push our tired old reactors and to push them hard.  

Run them long after they&#039;re held together by rust and hope.  

Crank up the output until something really important busts.

That&#039;s how we return America to the top of the heap.

God Bless America....
]]></description>
		<content:encoded><![CDATA[<p>Sarcasm?  What sarcasm?</p>
<p>There&#8217;s no damn sarcasm in my post.</p>
<p>America is falling behind.  We&#8217;re in danger of no longer being Number One.</p>
<p>First the Ruskies and now that little Japanese island have shown us up with their impressive reactor meltdowns.  We took a shot at it and didn&#8217;t ruin any large tracts of land with our puny little Three Mile Island meltdown.  </p>
<p>Shame is upon us.</p>
<p>We need a great big meltdown to regain pride in our great land.  And the best way to get the disaster we need is to push our tired old reactors and to push them hard.  </p>
<p>Run them long after they&#8217;re held together by rust and hope.  </p>
<p>Crank up the output until something really important busts.</p>
<p>That&#8217;s how we return America to the top of the heap.</p>
<p>God Bless America&#8230;.</p>
]]></content:encoded>
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		<title>By: Anonymous</title>
		<link>http://cleantechnica.com/2011/06/23/is-nuclear-oversight-getting-more-lax-to-accommodate-aging-reactors/#comment-101314</link>
		<dc:creator><![CDATA[Anonymous]]></dc:creator>
		<pubDate>Fri, 24 Jun 2011 11:27:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=28533#comment-101314</guid>
		<description><![CDATA[lol, Bob, the sarcasm here really made me laugh out loud :D
]]></description>
		<content:encoded><![CDATA[<p>lol, Bob, the sarcasm here really made me laugh out loud <img src="http://cleantechnica.com/wp-includes/images/smilies/icon_biggrin.gif" alt=":D" class="wp-smiley" /></p>
]]></content:encoded>
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		<title>By: Harry Rossignol</title>
		<link>http://cleantechnica.com/2011/06/23/is-nuclear-oversight-getting-more-lax-to-accommodate-aging-reactors/#comment-101290</link>
		<dc:creator><![CDATA[Harry Rossignol]]></dc:creator>
		<pubDate>Fri, 24 Jun 2011 04:09:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=28533#comment-101290</guid>
		<description><![CDATA[Without knowing how many thermal cycles and other wear related data the a given plant actually has gone thru compared to the original &#039;projected&#039; number of cycles it&#039;s awfully hard to make a statement as to whether or not the &#039;original&#039; standard was too lax or too strict.

The major wear items on thermal plants(coal,gas,nuclear) tend to  be related to how many thermal(on/off) cycles.  

Just like how often many service items on your car need to be inspected/replaced depends on whether the car is being used as a taxi, or towing or predominately highway cruising.

Obviously, with 30 years of data on how a specific nuclear plant was used judgements as to what the appropriate service and replacement rates should be  based on &#039;actual&#039; operating experience rather then anticipated.








]]></description>
		<content:encoded><![CDATA[<p>Without knowing how many thermal cycles and other wear related data the a given plant actually has gone thru compared to the original &#8216;projected&#8217; number of cycles it&#8217;s awfully hard to make a statement as to whether or not the &#8216;original&#8217; standard was too lax or too strict.</p>
<p>The major wear items on thermal plants(coal,gas,nuclear) tend to  be related to how many thermal(on/off) cycles.  </p>
<p>Just like how often many service items on your car need to be inspected/replaced depends on whether the car is being used as a taxi, or towing or predominately highway cruising.</p>
<p>Obviously, with 30 years of data on how a specific nuclear plant was used judgements as to what the appropriate service and replacement rates should be  based on &#8216;actual&#8217; operating experience rather then anticipated.</p>
]]></content:encoded>
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		<title>By: Anonymous</title>
		<link>http://cleantechnica.com/2011/06/23/is-nuclear-oversight-getting-more-lax-to-accommodate-aging-reactors/#comment-101293</link>
		<dc:creator><![CDATA[Anonymous]]></dc:creator>
		<pubDate>Fri, 24 Jun 2011 01:11:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=28533#comment-101293</guid>
		<description><![CDATA[And, let&#039;s share this bit from the linked article.  It&#039;s such a hoot...

&quot;&quot;It&#039;s beyond the wit of mankind to identify all challenges to a 
nuclear plant,&quot; said John Large, a former researcher for the British 
atomic energy agency who runs a consulting company in London 
specializing in nuclear safety.


A case in point involved three uprated reactors in Illinois.


In 2002, both reactors at the Quad Cities Nuclear Plant were 
restarted after having their capacity boosted by 17.8 percent. Pipes 
began to shake, and cracks formed in a steam separator, which removes 
moisture from the steam before it enters the turbines. In one case, a 
9-by-6-inch metal chunk broke off and disappeared.


Similar problems were discovered at the Dresden Nuclear Power Plant, 
about 60 miles southwest of Chicago, which had undergone a 17 percent 
uprate.


Broken parts were replaced, but the problem continued. Exelon Corp., which owns the plants, and the NRC were mystified.


&quot;The greatest concern is loose parts that you can&#039;t find,&quot; John 
Sieber, a nuclear engineer on the NRC advisory committee, said during a 
2004 meeting. &quot;Are they in the bottom of the reactor vessel? ... Is it 
floating around where it can damage internal parts of the core?&quot;

Push those puppies.  Let&#039;s see where the limit really is....]]></description>
		<content:encoded><![CDATA[<p>And, let&#8217;s share this bit from the linked article.  It&#8217;s such a hoot&#8230;</p>
<p>&#8220;&#8221;It&#8217;s beyond the wit of mankind to identify all challenges to a<br />
nuclear plant,&#8221; said John Large, a former researcher for the British<br />
atomic energy agency who runs a consulting company in London<br />
specializing in nuclear safety.</p>
<p>A case in point involved three uprated reactors in Illinois.</p>
<p>In 2002, both reactors at the Quad Cities Nuclear Plant were<br />
restarted after having their capacity boosted by 17.8 percent. Pipes<br />
began to shake, and cracks formed in a steam separator, which removes<br />
moisture from the steam before it enters the turbines. In one case, a<br />
9-by-6-inch metal chunk broke off and disappeared.</p>
<p>Similar problems were discovered at the Dresden Nuclear Power Plant,<br />
about 60 miles southwest of Chicago, which had undergone a 17 percent<br />
uprate.</p>
<p>Broken parts were replaced, but the problem continued. Exelon Corp., which owns the plants, and the NRC were mystified.</p>
<p>&#8220;The greatest concern is loose parts that you can&#8217;t find,&#8221; John<br />
Sieber, a nuclear engineer on the NRC advisory committee, said during a<br />
2004 meeting. &#8220;Are they in the bottom of the reactor vessel? &#8230; Is it<br />
floating around where it can damage internal parts of the core?&#8221;</p>
<p>Push those puppies.  Let&#8217;s see where the limit really is&#8230;.</p>
]]></content:encoded>
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	<item>
		<title>By: Anonymous</title>
		<link>http://cleantechnica.com/2011/06/23/is-nuclear-oversight-getting-more-lax-to-accommodate-aging-reactors/#comment-101292</link>
		<dc:creator><![CDATA[Anonymous]]></dc:creator>
		<pubDate>Fri, 24 Jun 2011 01:00:00 +0000</pubDate>
		<guid isPermaLink="false">http://cleantechnica.com/?p=28533#comment-101292</guid>
		<description><![CDATA[Good point you make Harry.  We just won&#039;t know when these plants will fail until we push a few until the do.

And just to satisfy our curiosity a bit sooner how about we up the output on these old corroded plants?  We could reach bang-dome even quicker and thus learn what the limit really is.

Oh, wait, we&#039;ve already done that.  We&#039;ve uprated a number of reactors, as much as 20% more than their designed output.  That ought to give us the  &quot;thermal cycles and other wear related data&quot; we need...

&quot;In an uprated reactor, more neutrons bombard the core, increasing 
stress on its steel shell. Core temperatures are higher, lengthening the
 time to cool it during a shutdown. Water and steam flow at higher 
pressures, increasing corrosion of pipes, valves and other parts.


&quot;This trend is, in principle, detrimental to the stability 
characteristics of the reactor, inasmuch as it increases the probability
 of instability events and increases the severity of such events, if 
they were to occur,&quot; the Advisory Committee on Reactor Safeguards, which
 is mandated by Congress to advise the NRC, has warned.&quot;

http://ns.gazettenet.com/2011/04/28/us-nuclear-plants-push-output

Wish there was a law that required nuclear fan-boys to live next door to our oldest, most ready to fail reactors....]]></description>
		<content:encoded><![CDATA[<p>Good point you make Harry.  We just won&#8217;t know when these plants will fail until we push a few until the do.</p>
<p>And just to satisfy our curiosity a bit sooner how about we up the output on these old corroded plants?  We could reach bang-dome even quicker and thus learn what the limit really is.</p>
<p>Oh, wait, we&#8217;ve already done that.  We&#8217;ve uprated a number of reactors, as much as 20% more than their designed output.  That ought to give us the  &#8220;thermal cycles and other wear related data&#8221; we need&#8230;</p>
<p>&#8220;In an uprated reactor, more neutrons bombard the core, increasing<br />
stress on its steel shell. Core temperatures are higher, lengthening the<br />
 time to cool it during a shutdown. Water and steam flow at higher<br />
pressures, increasing corrosion of pipes, valves and other parts.</p>
<p>&#8220;This trend is, in principle, detrimental to the stability<br />
characteristics of the reactor, inasmuch as it increases the probability<br />
 of instability events and increases the severity of such events, if<br />
they were to occur,&#8221; the Advisory Committee on Reactor Safeguards, which<br />
 is mandated by Congress to advise the NRC, has warned.&#8221;</p>
<p><a href="http://ns.gazettenet.com/2011/04/28/us-nuclear-plants-push-output" rel="nofollow">http://ns.gazettenet.com/2011/04/28/us-nuclear-plants-push-output</a></p>
<p>Wish there was a law that required nuclear fan-boys to live next door to our oldest, most ready to fail reactors&#8230;.</p>
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