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Using river flow to pump water uphill (for later power generation) | 23 comments (23 topical, editorial)

Re: Using river flow to pump water uphill (for lat (3.00 / 0) (#22)
by MattM on Mon Sep 29th, 2008 at 06:56:59 PM MST
(User Info)

A tidal flow is not usually reversed flow. Not to say it cannot be, but that is the exception. It can be in something like a channel through a sound, where there is a structured flow cutting below the top water like a rip tide. I suspect your general water flow rate is lessened in the high tide as the water doesn't have as much potential energy; its less elevation at that point relative to the sea/ocean. You probably have a little reverse flow along the top of the water as high tide moves in, but it should be negligible. The more troublesome issue would be turbulence in the flow as the water backs up during high tide. It is harder to extract energy from a turbulent flow.

It may just end up being entirely not worth your while to use the current's energy during high tide's ebb if you cannot reach the structured flow (the channel?) since the overall water flow is slower. You will still have flow somewhere in the river. Its more than likely that flow is out there in the channel rather than on the surface.
----------------------------- Go Huskers!
[ Parent ]

Using river flow to pump water uphill (for later power generation) | 23 comments (23 topical, 0 editorial)

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