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#141
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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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