Gravity Mill - any comments to this idea?

[hartiberlin]

As both pipes are connected the hydrostatic paradoxon would suggest the shuttles
sees 200 Kg instead of the real 110 Kg, right ?

[prajna]

Yes ooandioo and tbird.  Both spot on.  In fact it gets even more fun since all we have to consider is the volume of water above sealevel.  To pump  up 1m in a 1cm² tube we have to lift 1 kilo.  That is in order to pump any water out of the top of that tube.  So we know the boyancy required for our shuttle.  Next we decide how much water we want to pump to that height and that will determine the cross sectional area of our shuttle; the greater the area the greater volume we pump on each cycle.  If we want to pump faster over that distance then we have to increase the boyancy and the cross section of the top tube.

@ Stefan
Thanks.  I think we are beginning to get a good grip on this system.
Reference your last: the shuttle will see 10kg.

I will spend some time remodelling and then post some new diagrams and a clearer explaination.  It might not be too difficult to create a little html applet that you can just plonk in the values you want for each of the parameters and it will calculate the rest.  Maybe I will do that.

[hartiberlin]

stefan,

as long as you don't agree with the height issue, you are no use to this link.  either get with the program or leave.

tbird

Please don't shout that way! We are still brainstorming - every idea and criticism is a good one.

yes, TBird, please we are just brainstorming here and please copy and past all
your ideas to a new posting with all the numbers and energy calculations in there and present it in ONE
posting, so we can see,if your design works. Don?t spread it over several posts, as it gets
hard to follow.
We also need to post some moree drawings.
I will try to paint a few drawings and scan them in, so we can have a better and easier
view for this, but today I am pretty busy with other things, so also tommorow and the
next days I will not have much time towork on it...sorry.

[hartiberlin]

@ Stefan
Thanks.  I think we are beginning to get a good grip on this system.
Reference your last: the shuttle will see 10kg.

You mean 110 Kg ? Right ?

Okay, now I see it also,  as the surrounding water around the main pipe is also up to sealevel,
the weight onto the upper shuttle surface in 1 Meter deepth is 110 Kg.

I will spend some time remodelling and then post some new diagrams and a clearer explaination.  It might not be too difficult to create a little html applet that you can just plonk in the values you want for each of the parameters and it will calculate the rest.  Maybe I will do that.

That would be nice, if you could do that.
Many thanks !

[tbird]

andi.

Please don't shout that way! We are still brainstorming - every idea and criticism is a good one

sorry about that

andi

Thats what I'm saying.

glad we agree.

as i see it, there are 2 basic parts to Mr. Herrings design, the energy source and the use of the gererated energy.  at this point we are looking only at the energy source, of which there are 2 major componets, the shuttle and the recompression device.  since we have already put so much energy into the shuttle, i guess we should finalize that first.

in order to do that, let's agree on what size would be best to discuss on this thread.  i like prajna's suggestion except for the depth of the tube.  if we expect others to be interested enough to build a unit, it has to be doable.  i think more people would be apt to build one if it were only like 10 feet instead of 10 meters.  after all, if you can build one this size, you know enough to build one to supply whatever energy you want.

tbird