Subsea Power Generation: A New Approach to Sustainable Energy

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Discussion Overview

The discussion revolves around a proposed method for generating power subsea using a system that leverages air and natural gas. Participants explore the feasibility of this idea, which draws inspiration from hydroelectric power principles and seeks to address future energy needs.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • The original poster (OP) suggests using a wheel system that utilizes air to generate lift and power, inspired by observations from an aquarium.
  • Some participants express skepticism about the energy balance, arguing that the energy required to pump air or natural gas to depth may exceed the energy produced by the system.
  • There is a proposal to consider the extraction of energy from compressed natural gas if it is tapped from beneath the seafloor, with a suggestion to use turbines for energy generation.
  • Questions are raised about the duration of gas pressure and its ability to sustain energy production over time.

Areas of Agreement / Disagreement

Participants generally express skepticism about the feasibility of the OP's idea, particularly regarding energy efficiency. However, there are competing views on the potential of tapping natural gas from the seafloor, indicating that the discussion remains unresolved.

Contextual Notes

Participants note the need for more details on the proposed system, including the mechanics of air and gas pressure management and the overall energy output versus input considerations.

Who May Find This Useful

Individuals interested in sustainable energy solutions, subsea engineering, and innovative power generation concepts may find this discussion relevant.

Physics2010e
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Hello

I have figured out a way that we maybe can generate power with.

I have talked with some people but they doesn't understand my idea.

I am not to good in the math / physics. But i like to invent things.

If you look at the picture: Subsea airwheel.jpg, then what i thinking of is that we can put air

into the open tanks from 6 o clock till 9 - 1+ o clock. Then at 12 o clock the air runs out

itself. The tanks are automaticly filled with water and sinks again. When I say clock I only

try to explain the position of the wheel.

I have tried to fill a little air in a bottle with water, and I see that it generates a huge

amount of lift.

Why not use the air's lifting power? Can even run at night time. And in quiet water.


What I am thinking of running this wheel with is:

-nature gas.

Because we can produce energy of this gas before even burning it.

If you want you can produce hermetic systems which can use the gas many times. (i hope so). If they beeing put on top of each other.

-maybe we can use it on Iceland?

-The black shimneys in the oceans?

-What about cooking water from the Earth's magma and use the steam in the wheel.


I hope some of you see my idea.

I thinking of this because some day the oil will run out and we need alternatives.

I got this idea from my aquarium. Why not use rising air.

It's kinda reversal system of hydroelectric powerplants.


Maybe this is against the physics laws. This is why I ask you in this forum.
 

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Getting the air down to the depths required plus pumping it into the tanks at the bottom (evacuating the water) would require more energy than you get out of the system.

This is an over unity device as far as I can see, so it won't work.

You may want to provide more details before this thread gets locked.
 
Physics2010e said:
Hello

I have figured out a way that we maybe can generate power with.

I have talked with some people but they doesn't understand my idea.

I am not to good in the math / physics. But i like to invent things.

If you look at the picture: Subsea airwheel.jpg, then what i thinking of is that we can put air

into the open tanks from 6 o clock till 9 - 1+ o clock. Then at 12 o clock the air runs out

itself. The tanks are automaticly filled with water and sinks again. When I say clock I only

try to explain the position of the wheel.

I have tried to fill a little air in a bottle with water, and I see that it generates a huge

amount of lift.

Why not use the air's lifting power? Can even run at night time. And in quiet water.


What I am thinking of running this wheel with is:

-nature gas.

Because we can produce energy of this gas before even burning it.

If you want you can produce hermetic systems which can use the gas many times. (i hope so). If they beeing put on top of each other.

-maybe we can use it on Iceland?

-The black shimneys in the oceans?

-What about cooking water from the Earth's magma and use the steam in the wheel.


I hope some of you see my idea.

I thinking of this because some day the oil will run out and we need alternatives.

I got this idea from my aquarium. Why not use rising air.

It's kinda reversal system of hydroelectric powerplants.


Maybe this is against the physics laws. This is why I ask you in this forum.

As jarednjames says, it takes more energy to pump the air or natural gas down into the water than you get back out from the motion of the wheel.

However, if you were tapping natural gas from under the seafloor, that's a different situation. You could extract some energy from the compressed natural gas as you let it rise to the surface (like maybe with turbines or something), but it probably wouldn't be all that much energy.
 
berkeman said:
However, if you were tapping natural gas from under the seafloor, that's a different situation. You could extract some energy from the compressed natural gas as you let it rise to the surface (like maybe with turbines or something), but it probably wouldn't be all that much energy.

That's actually the sort of thing I was hoping the OP would clarify, but I also wanted a bit more detail such as how long enough pressure would remain to keep the system producing energy (how long would gas pressure remain able to pressurise the chambers).
 
Thank you everyone for your quick response.

It's nice to get things clarified.

Merry cristmas to all of you in the Physics Forums.
 

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