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Ethanol Mandate for Iowa?



 
 
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  #141  
Old October 1st 05, 02:58 PM
sfb
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Is that a technical or economic statement?

"Dylan Smith" wrote in message
...
On 2005-09-30, Greg Copeland wrote:
On Thu, 29 Sep 2005 13:50:45 +0000, Dylan Smith wrote:

You can't really replace natural gas plants with nuclear plants.
Nuclear
plants provide base load power (they can't easily be throttled) for
the
continuous supply you always need.


Traditional nuclear plants are "throttled" by controlling the
reaction.
As demand goes down, the reaction is slowed, which produces less
heat,

snip

Yeah, sure they can - but they can't be throttled like a gas station,
and that's why they are baseload power rather than brought up and down
as demand fluctuates. You wouldn't run your entire electrical system
off
baseload generators, you'd still need powerplants that can be brought
up
and down quickly.

--
Dylan Smith, Castletown, Isle of Man
Flying: http://www.dylansmith.net
Frontier Elite Universe: http://www.alioth.net
"Maintain thine airspeed, lest the ground come up and smite thee"



  #142  
Old October 1st 05, 03:26 PM
Marty
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"Jay Honeck" wrote in message
news:i5K_e.410799$xm3.180028@attbi_s21...

Um, well, these aren't quite the '50s and '60s vintage, but Zion Nuclear
Power Plant in Zion, IL, was built in 1970. It's still chugging along 35
years later.

SNIP
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"


Actually the reactors at Zion were shut down many years ago. It was over
economics and politics. The plant (generators) is being used as an exciter
at the North end of ComEds grid. The NRC license may still be in effect, but
the reactors are not running. It has been a number of years since I left
ComEd but Zion 1 & 2 were mothballed when I did leave. I'd find it hard to
belive they were restarted.

Dresden Unit #1 was down for refuel when TMI happened, I was working in the
RX building when I first got the news. In the aftermath, it was determined
that Unit #1 did not produce sufficient power to pay for the new
modifications required for startup post TMI. The unit was turned into a test
lab and the results of those tests are responsible for extending the life
span of BWRs. Units 2 and 3 were also co-labrats to Unit 1, in that the
findings of Unit 1 tests were verified in real time on them. The biggest
life extension was the injection of hydrogen which drastically reduced the
oxidation of the steel.

Just a little nuke trivia,

Marty


  #143  
Old October 1st 05, 03:38 PM
Marty
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"Marty" wrote in message
...


Actually the reactors at Zion were shut down many years ago. It was over
economics and politics. The plant (generators) is being used as an exciter
at the North end of ComEds grid. The NRC license may still be in effect,
but the reactors are not running. It has been a number of years since I
left ComEd but Zion 1 & 2 were mothballed when I did leave. I'd find it
hard to belive they were restarted.


Marty


Nope, Zion is permanently mothballed.

http://www.exeloncorp.com/ourcompani...ng_station.htm

Physically it could be recommisioned, with todays energy woes who knows.
Never say never.
;-)
Marty


  #144  
Old October 1st 05, 07:26 PM
Jay Honeck
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Actually the reactors at Zion were shut down many years ago.

Nope, Zion is permanently mothballed.

http://www.exeloncorp.com/ourcompani...ng_station.htm

Physically it could be recommisioned, with todays energy woes who knows.
Never say never.


I was presuming that the dual nuke plants we see every time we fly to
our home town of Racine, WI, was Zion? The cooling towers are visible
east/northeast Rockford, IL.

If conditions are right, the columns of steam are visible from 70 miles
out.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

  #145  
Old October 1st 05, 08:49 PM
Marty
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"Jay Honeck" wrote in message
ups.com...
Actually the reactors at Zion were shut down many years ago.


Nope, Zion is permanently mothballed.

http://www.exeloncorp.com/ourcompani...ng_station.htm

Physically it could be recommisioned, with todays energy woes who knows.
Never say never.


I was presuming that the dual nuke plants we see every time we fly to
our home town of Racine, WI, was Zion? The cooling towers are visible
east/northeast Rockford, IL.

If conditions are right, the columns of steam are visible from 70 miles
out.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"


Zion station is directly south of Racine and has no cooling towers. It used
Lake Michigan for cooling.

Byron station is just southwest of Rockford, it has 2 cooling towers just
under 500' tall, maybe thats the one you see?

I have used it many times as a fix when going to Rockford and calling
approach.

Marty



  #146  
Old October 1st 05, 09:39 PM
Jay Honeck
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Byron station is just southwest of Rockford, it has 2 cooling towers just
under 500' tall, maybe thats the one you see?


Yep, that's the one, thanks.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

  #147  
Old October 2nd 05, 04:21 AM
Morgans
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"Marty" wrote

Zion station is directly south of Racine and has no cooling towers. It

used
Lake Michigan for cooling.


Davis Bessie, near Port Clinton, Ohio has cooling towers, and it is tight on
the lake. My understanding is that the water is cooled via cooling towers
before being returned to the lake. I believe it is still running, and it
has to be at least 30 years old now.
--
Jim in NC

  #148  
Old October 2nd 05, 04:46 AM
Marty
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"Morgans" wrote in message
...

"Marty" wrote

Zion station is directly south of Racine and has no cooling towers. It

used
Lake Michigan for cooling.


Davis Bessie, near Port Clinton, Ohio has cooling towers, and it is tight
on
the lake. My understanding is that the water is cooled via cooling towers
before being returned to the lake. I believe it is still running, and it
has to be at least 30 years old now.
--
Jim in NC


If restarted, I'm sure Zion would also have to have a cooling tower. To
control thermal pollution all plants, including fossil fueled, now need
either a cooling tower or lake (man made). Again, it was Dresden that was
the labrat for cooling lake construction. The water is cooled to acceptable
temps before it is returned to the natural source. This also lowers the
dependency and impact on the natural source.
The added cooling isn't for Nukes only. Near Dresden is the Collins plant
that is oil fired, my house used to sit on land now under the Collins
Station cooling lake. ;-)

I don't know about Bessie, but many operated for years on the natural
sources alone.

Often the plants have been called upon to help control freezing of navigable
waterways such as the Illinois and Mississippi rivers.

I used to take company photographers up to take the annual aerial photos of
the plants. I wonder what kind of flight planning it takes to do that
nowadays. 8-)

Marty


  #149  
Old October 2nd 05, 05:15 AM
Morgans
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"Morgans" wrote

and it is tight on the lake.


Crap. I hate when I can't type. Should read "right on the lake."
--
Jim in NC

  #150  
Old October 2nd 05, 05:29 AM
Montblack
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("Morgans" wrote)
and it is tight on the lake.


Crap. I hate when I can't type. Should read "right on the lake."



First one reads better - there's a whiff of style to it. g


Montblack
 




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