[ RadSafe ] More on San Onofre - Engineer's input needed

Sun Apr 8 20:18:48 CDT 2012

The new EPA clean air regulations s effectively preclude any new coal
generating plants.

Bill Lipton
It's not about dose, it's about trust.
 On Apr 8, 2012 8:18 PM, "ROY HERREN" <royherren2005 at yahoo.com> wrote:

> Sandy,
>
>     I was surprised to read your e-mail about the Steam Generators being
> "relatively new".  I had initially assumed that they had merely replaced
> the old
> tubing in the old generator with new tubes; I didn't know that they had
> completely replaced the Steam Generators.  Given that these are
> "relatively new"
> generators it is all the more disconcerting that some of the tubes are
> already
> leaking.  Hopefully the root cause of the leak(s) will be determined and a
> timely solution can be applied to get the units up and operating.
>
>    We are in a quandary of sorts regarding electrical energy production!
> Some
> folks don't want coal fired electrical generating plants, some folks don't
> want
> oil or gas fired electrical generating plants, some folks don't want Solar
> thermal plants, some folks don't want windmills, and some folks don't want
> Nuclear Power plants (hell, here in northern California some folks want to
> tear
> down some old dams and do away with water reservoirs and the hydroelectric
> energy produced by those systems).   Clearly there doesn't appear to be any
> practical solutions that will please all of the parties.   What are we to
> do to
> produce electricity for a (post) industrial society?  Solar voltaic,
> Fusion?  At
> least Solar voltaic is a proven technology, but we can't possible produce
> enough
> panels in a short enough time frame to replace the loss of San Onofre,
> much less
> all of the other Nuclear Power plants.  What are we to do?
> Roy Herren
>
>
>
>
> ________________________________
> From: "Perle, Sandy" <sperle at mirion.com>
> To: "SAFarber at optonline.net" <SAFarber at optonline.net>; TheInternational
> Radiation Protection (Health Physics) Mailing List <
> radsafe at health.phys.iit.edu>
> Cc: The International Radiation Protection (Health Physics) Mailing List
> <radsafe at health.phys.iit.edu>
> Sent: Sun, April 8, 2012 2:27:17 PM
> Subject: Re: [ RadSafe ] More on San Onofre - Engineer's input needed
>
> Stu,
>
> Correct. Only a couple of tubes have had issues. The question is will
> others
> fail and at what rate. This could be an isolated random issue since the SG
> is
> relatively new. I drive by the plant frequently. The NRC may over-react
> due to
> public concerns, and the media is giving into the anti-hype, as expected.
> Count
> p. this being the scenario whenever any issue arises.
>
> Regards,
>
> Sandy Perle
> Sent from my iPhone
>
> On Apr 8, 2012, at 3:22 PM, "Stewart Farber" <SAFarber at optonline.net>
> wrote:
>
> > The two SG at San Onofre have about 10,000 individual tubes in total.
> > Depending on whether all tubes have a manufacturing defect and are
> likely to
> > keep failing regularly, I know in the past it was a routine procedure
> for a
> > plant to weld defective  SG tubes shut so that nothing from the primary
> side
> > can get carried over to the secondary loop. Back some time, Prairie
> Island
> > for example had to plug about 600 SG tubes and continued operations.
> It's a
> > question of how many tubes get welded shut and how much efficiency lost
> is
> > acceptable as a fraction of the approx. 5000 tubes in each SG.
> >
> > I would think it all comes down to how many plugs are defective or are
> > likely to fail soon and can be repaired before the plant goes back
> on-line.
> > The grid operators, and regulatory agencies involved,  are likely to give
> > alternatives like welding defective tubes closed serious consideration
> when
> > they think about the consequences of a shortage of generating capacity by
> > taking San Onofre offline.
> >
> > Of course the NRC, may just torpedo the whole idea of SG repair and keep
> the
> > plant offline in their pursuit of what they state is the need for zero
> risk.
> > I guess operating old coal and gas plants with the significant
> environmental
> > and health effects to be realized with certainty is OK with zealous
> forces
> > against nuclear electric generation.
> >
> > Stewart Farber
> > SAFarber at optonline.net
> > ==============
> >
> > -----Original Message-----
> > From: radsafe-bounces at health.phys.iit.edu
> > [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Joel C.
> > Sent: Sunday, April 08, 2012 1:35 PM
> > To: radsafe at health.phys.iit.edu
> > Subject: [ RadSafe ] More on San Onofre - Engineer's input needed
> >
> > It sounds like SCE spent $670 million on defective steam gennies.  I'd
> like
> > to hear from a knowledgable engineer about that.
> >
> >
> > Joel Cehn
> > joelc at alum.wpi.edu
> > _______________________________________________
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