Buoyancy device and wheel and bubbles

[hartiberlin]

Hi Alan,
interesting idea.
But you have to think about the hydrostatic pressure of water,
which depends only on the deepth of the syphon in the water.

Maybe it will be beneficial to have there a very small needle shaped
syringe for the output of the air to get the bubbles into the water.
So you might need less air pressure to blow the air through the needle
valve or just can use air strokes to get some new bubbles out there.

Remember, it is very hard to press bubbles out of a tube, if the
tube is below 1 Meter water deepth.

Try it yourself.
Take a plastic hose, fill your bathtube with water full in height,
so you have at least 0.5 Meters height of water in there and
put the hose to the ground of the bathtube and then blow
with your mouth air into the hose to get it out at the bottom
of the bathtube.

It will be really hard to get the air out there down there...

As the water presses with all its hydrostatic water pressure against the
hose opening you have to overcome this water height weight pressure.

If you make the hole very small needle like you also the pressure
at the end is divided from the end surface area to the needle hole
area, so there is not much air pressure left at the needle hole, so
well, just try and see, how much pressure you need and how you
produce this air pressure the best possible way with the least amount of
energy...
Maybe somekind of air pressure pulsing with high pressure with
like a pulse wave 20 % on / 80 % off duty cycle air pressure would
help. So the 20 % on cycle will have very high pressure and will
allow the air go through the water pressure and the 80 % off cycle
will need no input energy.
So you need the same input energy as if you would only apply
1/4 of the air pressure ALL THE TIME ( 100 % ON )
and which would be too low to pump the air through the
needle valve.

So I guess the real question is, how do you best produce high air pressure stroke
intervals to get the air bubble out of the needle valve.

Good luck.

Regards, Stefan.

[AB Hammer]

Greetings all here is some more detail of what I was doing.

[AB Hammer]

Greetings Stefan

I think we are on the same page. As per the design above is a clarification of the air displacement using air jets. Yes the smaller holes will also help keep back flow of the water. I also under stand the pressure problems.

I was once maintenance manager for the state of Arkansas for Rainbow vacuum cleaners and did many water vacuum pull and push demonstrations. Until now I didn't realize how this knowledge from the past would help me design.

helmut

I noticed you drew in what I would call a water trap. This is a good idea and it would need a smaller jet at the bottom to blow out any back flow of the water. You would loose a small minimum of air but it would be worth the addition.

[AB Hammer]

In the air line, once the water is out it will be easy to keep out, while running. Here is another drawing.

I will be working on the blower design to fit the needs of this system. These drawings will have to be more precise for construction, so they may take a bit of time.

[utilitarian]

The energy cost of pushing air into the air bubble tube is not the only obstacle.

Another obstacle, which is just as significant, is the energy required to move a float from the air bubble tube into solid water.  This is where every flotation-based free energy plan fails.  People assume that the float can just get sucked into the water with little effort, but it costs quite a bit of energy to push a float into the water, and after frictional losses, it always costs more energy to do this than can be gotten out of the rising float.