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Author Topic: Free Electricity From Water Pipes (News item).  (Read 5993 times)

Offline FatBird

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Free Electricity From Water Pipes (News item).
« on: February 24, 2015, 02:06:31 PM »
http://www.trueactivist.com/portland-just-installed-water-pipes-that-generate-electricity/


                                                                                                                                                .

Free Energy | searching for free energy and discussing free energy


Offline Enoch

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Re: Free Electricity From Water Pipes (News item).
« Reply #1 on: February 24, 2015, 03:30:17 PM »
This is not free energy.
The turbines grab the energy used by the pump to put the water of the pipe under pressure!

Offline MarkE

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Re: Free Electricity From Water Pipes (News item).
« Reply #2 on: February 24, 2015, 03:43:25 PM »
The irony here is that they would have saved more money by just reducing their pressure by the same amount as the turbines do.  And they could do that without buying extra equipment.

Offline mscoffman

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Re: Free Electricity From Water Pipes (News item).
« Reply #3 on: February 24, 2015, 05:26:47 PM »
This is not free energy.
The turbines grab the energy used by the pump to put the water of the pipe under pressure!

They seem to imply this is energy is free, but it really depends in a rather complex way on electrical
versus water equipment costs. It inverts the concept to water leaks being a good which is probably
bad. Hardly a brilliant idea...maybe a dim one. Also isn't really new.

Offline e2matrix

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Re: Free Electricity From Water Pipes (News item).
« Reply #4 on: February 24, 2015, 05:49:12 PM »
Great idea - for Portland anyway and that assumes they are talking about Portland, OR.   Not a problem that some are making this out to be as I suspect this involves the huge and swift flowing Columbia River which comes from a higher elevation than Portland.   If they are putting the pipes between the higher elevation and the city than no power would be consumed getting the water through the pipes as it would be gravity fed.   It would be like adding mini-damn generators along the distribution pipes.   Sounds like an excellent plan. 

Free Energy | searching for free energy and discussing free energy

Re: Free Electricity From Water Pipes (News item).
« Reply #4 on: February 24, 2015, 05:49:12 PM »
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Offline MarkE

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Re: Free Electricity From Water Pipes (News item).
« Reply #5 on: February 24, 2015, 06:40:23 PM »
Portland gets its water from a water shed about 30 miles east of the city.  East Portland water is gravity fed.  West Portland is served by pumps.  Whatever pressure drop is imposed between the water shed and the pumps feeding West Portland is energy that must be made up by pumping against a commensurately greater pressure differential.  Where it would potentially be neutral is if it is installed in distribution branches that tie from a common point towards lower elevations on the east side.  Then it would tend to create back pressure which could actually raise pressure at the branch point and on to the west side.

Offline Paul-R

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Re: Free Electricity From Water Pipes (News item).
« Reply #6 on: February 24, 2015, 09:50:13 PM »
Yes, some people haven't a clue. If everyone did that, then the pumping station would have to increase the pressure to keep the water flowing.

What would be clever would be to put their little turbines actually in the final tap. This would slow down and make more ordered the water as it falls to the sink or bath, this energy being wasted by ending up as noise, splashing etc.

What intrigues me is to recreate the water hammer from bad plumbing and use this for energy. I think one of John Worrel Keely's devices was effectively doing this.

Free Energy | searching for free energy and discussing free energy

Re: Free Electricity From Water Pipes (News item).
« Reply #6 on: February 24, 2015, 09:50:13 PM »
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Offline MarkE

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Re: Free Electricity From Water Pipes (News item).
« Reply #8 on: February 25, 2015, 02:07:32 AM »
"Discussing the process, Ben Coxworth in Gizmag said, "As the water flows through, it spins four 42-inch (107-cm) turbines, each one of which is hooked up to a generator on the outside of the pipe. The presence of the turbines reportedly doesn't slow the water's flow rate significantly, so there's virtually no impact on pipeline efficiency." "

IOW, the system only converts a small percentage of the fluid power to electricity.  Most likely that makes the cost per Watt very high.

Offline memoryman

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Re: Free Electricity From Water Pipes (News item).
« Reply #9 on: February 25, 2015, 02:56:06 AM »
I would like to see the calculations that makes it attractive financially.

Free Energy | searching for free energy and discussing free energy

Re: Free Electricity From Water Pipes (News item).
« Reply #9 on: February 25, 2015, 02:56:06 AM »
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Offline Pirate88179

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Re: Free Electricity From Water Pipes (News item).
« Reply #10 on: February 25, 2015, 03:41:41 AM »
Free Energy?

This is nothing more than a pipe dream.

Bill

Offline Lakes

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Re: Free Electricity From Water Pipes (News item).
« Reply #11 on: February 25, 2015, 09:47:13 AM »
Are Pipe Dreams Electric? ;)

Anyway besides the other costs, what about if the turbines get clogged, another extra cost.

You can already buy little LED turbine gadgets to put on your taps and shower heads.

 

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