Gravity Mill - any comments to this idea?

[hartiberlin]

Pondering in bed about it, I now see the main Problems are in sinking the shuttle again ! If we just use a balloon for the shuttle, it will not work, cause at seawaterlevel, the balloon will have a much bigger volume, due to the reduced water deepth pressure. Also then releasing some air also does not work, as it never will sink again, until you will remove ALL the air ! But then we face again the problem to have to put too much energy into pumping all the air again into 10 meters deepth !

[hartiberlin]

Now the only solution I see is to build the Shuttle unit like a Cartesian diver unit.

It needs to have weight on it, so if we move some air out of it on the top at seawaterlevel, then it can sink again. Maybe it is also better to build the shuttle really this way, that it can just have 2 different volumes and switch between them. Now I have to calculate how much energy is needed to sWitch between these 2 volumes.

[tbird]

stefan,

did you read my earlier post today?  were they not worth a comment or 2?

tbird

[ooandioo]

tbird, you are right, I see it now. The pressure is constant, so we just have to arrange the pipes diameter.

hartiberlin, thats what I'm saying. Fixed volumes will not work as the pressure is different at different sea levels. Maybe it should really be a static box with 2 volume states. Lets see, what your calculations are going to look like.

Andi

[hartiberlin]

TBird, which posting do you mean ? I am only at my PDA now, cause my DSL hoster has some problems...

Well let us first look at the sinking problem and define a solution for this. I guess we really need a longer much smaller tube ontop the seawaterlevel to bring the water more up !