What are the efficient methods to vacuum or pump air into 15 meters underwater?

submitted by HolyDamn20 from self.Physics

Say we have a four underwater components tidal power / hydro power system.

Component A. A propeller would always orient along the same direction regardless the direction of the flow.

This is the easy part, for instance, an upright cross flow fan with movable blades.

Component B. A module would vacuum or pump air into the water.

Like two gears with different radius. This module is driven by the moment force while the water pushing the bigger gear.The bigger gear is the component A, the much smaller gear is Component B. Which means, the torque force of component B is relative high, and the speed of component B is low, maybe 1 to 5 rounds per second.

Component C. A rail from component B to component D for collecting the air generated by component B and guiding the air to move to component D.

Component D. The core of the generator with cables, magnets, and copper wires.

The basic shape of component D is a cross flow fan. The constructure from the main body to each blade of this cross flow fan should be able to trap air in it. It might be reasonable to combine with similar constructure like component A.

These four components could be arranged freely like lego blocks.

There have to be larger and constant enough power to make component D spin, but the large is never constant when we speak to nature power. We know the buoyant force of 1 meter cubic air is 1 ton, and we can accumulate air into the system even for 1g buoyant force only. If we can use the relative high moment force to vacuum or pump as much air as possible into the water, which will be the main task of component B, the air, not water. Maybe we can have another tidal power or hydro power method with relatively stable output.

When we use water flow to push the core unit to generate electricity, all small power will be used to fight against the maximum static friction. And also all power have to fight the water in front of the flow first while the water traveling from component B to D. Which are all waste of energy.

With this method / system, when component B stopped, the water would be push into the tubes by pressure. This means at the beginning of next run, we will have to eject the water inside the tube before we could see the air comes out from the tubes. It is a waste of energy too. The depth is 15 meters, valves in this kind of pressure need a lot of force to switch, which is a waste too.

So the first major questions we need to figure out first would be component B. And the second is where to build this module.

I think the well customized jet turbine and venturi tube might be one solution, as long as we adjust them to not to generate micro bubbles.

So, what are the efficient methods to vacuum or pump air into 15 meters underwater?

The best laid planes. No video clips, just this text.

Any one may use the post for the people's livelihood freely as long as they proactively share this post and all changes freely.

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[–]HolyDamn20[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (1 child)

Since these two methods are shared, I've got what I want, And no coming discussions. So this is the last response of these discussion.

If your intentions were good and were offended by me, please allow me to appoligyze for that.

If your intentions were not that good, then those were not even closed to be fair.

No willing to discuss physics? Build a small module to see it with your own eye. Then you will realize it do need to be calculated and rejected or proved by physics.

Or you can leave this post along.

If one had failed to do the discuss, test build, and ignore, then It may be hard for me to understand the good will of his.

the Water Pool: - Unless the questions were rejected or all proved by physics, or they were nothing but physical questions. - I guess the best STD1 and STD2 would be some where around the S. - Perish all perpetual thoughts, be objective, calculate and reject it by physics and physics only. - Those questions should be answered by orders. Q1 would be the first one need to be answered. The CND1 is the key to Q1, and the imagination and creativity are the keys to CND1. - Sinerely, there are lots lots of creative optimise could be apply to this system. And the accumulate method will stand even when this wave energy had been rejected.

Tidal / Hydro Power: - This is a concept of a primitive prototype. - Which means all parts are upgradable too. - But it could be build and work already from the current design. - Sinerely, there are lots of creative aspetcs of further discussions could be found from this system.

[–]hfxB0oyA 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

I don't think you offended anybody. Saidit has a very small user base, and I just discovered that there's a Physics sub right now, after being on this site for years.

In case you ever return, here's a bit of a cheat to consider - if you're only concerned with delivering gas under 15m of water and not specifically air, one could dispense with the mechanical apparatus and run electrical wires down there. Through electrolysis, you could then convert the water in situ into hydrogen and oxygen gases.