Quote:
Originally Posted by Grant-53
For those who might want to see a similar system in action visit the Robert Moses power plant in Niagara Falls, NY. The turbines use water from the Niagara River in addition to a reservoir into which water also can be pumped at off peak hours. No free lunch but better control to maintain stable output.
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There was also something about this on the study guide for my Energy in the Global Arena final. The professor reviewed the last day of class, mostly just answering questions, but since the TA posted a different study guide than he had wanted her to, he said that we would review for the first hour of the final, which would leave us plenty of time. Unfortunately, it did not seem like either review really helped. He discussed nuclear power, but asked about the order of incidents, which he did not cover.
Fortunately, that question was not on the final. I wanted to ask how much energy would be lost. Couldn't they divert water into the reservoir in the first place?
Quote:
Originally Posted by Old Tele man
SOLAR energy evaporating WATER into VAPOR, which upon rising & coolings, then falls back to earth as RAIN, usually at higher geographic locations (gravity)...is truly efficient and 100% solar powered...no electricity required.
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Okay okay okay, go build your own hydroelectric power plant already!
Quote:
Originally Posted by JRMichler
Compressing to 290 PSI takes a lot more power than compressing to 100 PSI.
If somebody could build an air compressor capable of that performance, they could get stinking rich selling air compressors.
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Is there an equation for the power required to reach a certain amount of pressure? I would not expect it to be linear.