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Posted by Josepi on December 24, 2010, 7:37 pm
 
I can't buy you logic on that one.
Are you stating the nuke subs do not run the engines from batteries?


History has indicated land nukes cannot reduce their output quickly without
radical measures. When the big blackout happened a few years ago, after the
nukes had to be emergency stopped, without notice, it took weeks to initiate
them again and get them functional online. Some lessons there.

If your logic were true there would be no need for coal and other quick
response energy supplies because the cheaper nukes could adapt t the load
readily and quickly...they can't.

There must be a different method to waste nuke energy in a submarine, like
charge batteries or heat sea water. Perhaps the water moderated method you
mention if you can explain it. Obviously land nukes do not have this luxury.

Cheap would be close, but cheaper than other fuels would more correct.



It's really no "feat" at all.  The problem is that you are posting
about something you are apparently ignorant about.  Water moderated
nuclear reactors actually can change power level quite rapidly, and do
it with little or no rod movement.    Commercial reactors are in fact
normally ran at full power, but that's not because the have any big
problem changing power level,  It's actually because their fuel is
comparably cheap.

A reactor that was incapable of quickly reducing it's power level
would be unacceptably dangerous to operate because it would destroy
itself if it lost its load.

Vaughn




Posted by Jim Wilkins on December 24, 2010, 10:25 pm
 

http://www.fas.org/man/dod-101/sys/ship/eng/reactor.html
I was never cleared for nukes.



Posted by x on December 24, 2010, 11:52 pm
 
I really don't care what you "buy".  I have been there, and you
apparently haven't.  I have told you that water-moderated nuclear
reactors can easily and virtually automatically vary their power
levels over a wide range, and do it quickly.  The US taxpayers spent a
great amount to teach me that stuff. Besides, I have sat on my hands
at the RPCP and watched it happen.

It can take a commercial reactor plant several days to recover from an
unexpected shutdown, but that is not what we are talking about here.


All submarines have batteries, but they are for emergency power,
emergency startups, and to run the emergency propulsion motor in a
pinch.  Other than that, the battery has little to do with the engines
and NOTHING to do with absorbing reactor power changes..

Vaughn

Posted by Josepi on December 25, 2010, 2:44 am
 That IS what we are talking about here. Since you responded to my statement
about grid power nukes, we ARE discussing them. Your side interjection about
the sub nukes was just that, off-topic to the point made whether your
Christmas is going badly or not.

You haven't changed anything with your vast knowledge of a different style
of nuke control sytem as it doesn't apply to land units. It was very
interesting though and thanx for the note that sub nukes can  can allow
quicker control of the output than a land nuke has.

Have a great Christmas.


I really don't care what you "buy".  I have been there, and you
apparently haven't.  I have told you that water-moderated nuclear
reactors can easily and virtually automatically vary their power
levels over a wide range, and do it quickly.  The US taxpayers spent a
great amount to teach me that stuff. Besides, I have sat on my hands
at the RPCP and watched it happen.

It can take a commercial reactor plant several days to recover from an
unexpected shutdown, but that is not what we are talking about here.

All submarines have batteries, but they are for emergency power,
emergency startups, and to run the emergency propulsion motor in a
pinch.  Other than that, the battery has little to do with the engines
and NOTHING to do with absorbing reactor power changes..

Vaughn


I can't buy your logic on that one.




Posted by x on December 25, 2010, 7:57 pm
 
Since you have chosen to trollishly top post, we can't really know
WHAT you are talking about can we?


Who said we weren't?


You are welcome to prove your point, but you haven't yet.  So far, all
you have done is show your ignorance.

What you said is that nukes can't change power quickly so they must be
used as base load.  That is wrong.  Nuclear plants are normally ran at
full power for ECONOMIC reasons, not because they can't respond to
changes in grid demand.

You too!

Vaughn


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