Harvesting energy from pipelines

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The discussion revolves around the feasibility of harvesting hydropower from pipelines, despite the non-continuous flow of water. Participants debate the potential energy available in pipelines, noting that most systems are pumped, which limits the energy that can be extracted without additional pumping power. While some argue that small-scale energy generation is possible, others highlight that extracting energy from the flow would reduce the available energy downstream. The conversation also touches on the comparison to hydroelectric dams, where energy is lost after passing through generators. Overall, the practicality of implementing such energy harvesting in pipelines remains uncertain.
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why can't we go for harvesting hydropower from the pipelines, eventhough the flow is not continuous we can generate and store it,,, and can use it for small devices..
 
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Pranav_Indian said:
why can't we go for harvesting hydropower from the pipelines, eventhough the flow is not continuous we can generate and store it,,, and can use it for small devices..
Welcome to the PF.

And where would that extra energy come from that you are extracting along the way in the pipelines...? :smile:
 
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berkeman said:
Welcome to the PF.

And where would that extra energy come from that you are extracting along the way in the pipelines...? :smile:
its the potential energy stored in the tank...
 
Pranav_Indian said:
its the potential energy stored in the tank...
Potential energy is only used for long distance slow liquid transfer (like water aqueducts transferring water long distances). Most pipelines are pumped, so you would need to add extra pumping power at the source to give you any excess energy to extract along the way...

http://www.prohim.com.tr/files/cache/431b5a2c9e79b65a44a1957295942aec_f857.jpg
http://www.prohim.com.tr/files/cache/431b5a2c9e79b65a44a1957295942aec_f857.jpg
 
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berkeman said:
Potential energy is only used for long distance slow liquid transfer (like water aqueducts transferring water long distances). Most pipelines are pumped, so you would need to add extra pumping power at the source to give you any excess energy to extract along the way...

http://www.prohim.com.tr/files/cache/431b5a2c9e79b65a44a1957295942aec_f857.jpg
http://www.prohim.com.tr/files/cache/431b5a2c9e79b65a44a1957295942aec_f857.jpg
potential energy is not only used for long distance slow fluid transfer, what in the case of a dam.. there the fluid at rest have a potential energy and that one is routed to harnish electricity... but there we get a continuous high velocity jet of stream due to the high water head, but in case of a tank head is low, so we will go for small application devices
 
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Pranav_Indian said:
potential energy is not only used for long distance slow fluid transfer, what in the case of a dam.. there the fluid at rest have a potential energy and that one is routed to harnish electricity... but there we get a continuous high velocity jet of stream due to the high water head, but in case of a tank head is low, so we will go for small application devices
After the dam water has fallen down through the hydroelectric generators, it has lost most its potential energy. The water flow out of hydroelectric dam facilities has very little energy left, and just flows slowly down the river, or is pumped to local water utilities.

There is some energy that can be harvested from tides, and we've had a few threads about that here at the PF. You can find more threads about energy harvesting by doing a PF search. :smile:
 
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berkeman said:
After the dam water has fallen down through the hydroelectric generators, it has lost most its potential energy. The water flow out of hyddroelectric dam facilities has very little energy left, and just flows slowly down the river, or is pumped to local water utilities.

There is some energy that can be harvested from tides, and we've had a few threads about that here at the PF. You can find more threads about energy harvesting by doing a PF search. :smile:
ok sir... thank you for your wordz...
 
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Pranav_Indian said:
why can't we go for harvesting hydropower from the pipelines,
You can. [ref]
eventhough the flow is not continuous we can generate and store it,,, and can use it for small devices..
"small devices"?
Is it safe to assume you were thinking of adding a hydroelectric generator to your showerhead?

hmmm... Were you of member of Michio Kaku's forum about 10 years ago?

[someone] 05-12-2007 09:01 AM
Generating Electricity from supplied water
Water is being pumped into our homes constantly...
[OmCheeto]; Check for leaks!

Always the comedian...:rolleyes:
 
There are cases where harvesting pumping energy would be considered acceptable, such as for a self-powered flow meter (aren't they all?), but I'm not sure that is what the OP had in mind...
 
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If you extract energy half way down a pipe there will be less energy available at the end of the pipe. Otherwise I see no problem with the OP.
 
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