Re: another freezing myth

Posted by buickanddeere on March 23, 2005 at 11:03:37 from (64.10.41.100):

In Reply to: Re: another freezing myth posted by Stickler on March 23, 2005 at 09:44:52:

I seen 4 x 540 MW go down a couple of times. Once was an ice jam in the cooling water intake channel.
The other was an alge run that bunged the "new and improved traveling screens". That flow was reduced to the dual condensor cooling pumps per unit. Shutting down one CCW pump per unit helped for a while at a modest reduction of MW output due to low condensor vacuum. Then the undersized motors on the traveling screens began to burn out from continious use. We call it tripping a unit, others say scram.
Some d*mb *ss decided to save a few bucks per barscreen (24 in total) with intermitant sized drives. Turns out we lost $700,000 per unit per day for three days.
They have spent a fortune fooling around with a combination silt dispersal system. And CCW outflow recirc into the CCW intake to melt frazil ice.
Doesn't work and has cost more than a cooling tunnel out under the lake into cool clear water would have cost. Plus the cooler intake water in summer would boost output 5-10 MW per unit for "free".

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