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Author Topic: Gravity Mill - any comments to this idea?  (Read 79231 times)

Offline keytronic88

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Re: Gravity Mill - any comments to this idea?
« Reply #75 on: August 25, 2006, 02:16:47 PM »
Hi all, Here is another site with som more drawings. http://www.icestuff.com/energy/elsa/

Keytronic

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Re: Gravity Mill - any comments to this idea?
« Reply #75 on: August 25, 2006, 02:16:47 PM »

Offline mark australia

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Re: Gravity Mill - any comments to this idea?
« Reply #76 on: August 25, 2006, 02:39:12 PM »
Hi I am comming into this one a little late but has one of these devices ever been built and if so are there any photo's
Kind Regards
mark

Offline pese

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Re: Gravity Mill - any comments to this idea?
« Reply #77 on: August 25, 2006, 05:04:08 PM »
http://www.icestuff.com/energy/energy21/

this was the end ...... (in past)

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Re: Gravity Mill - any comments to this idea?
« Reply #77 on: August 25, 2006, 05:04:08 PM »
Sponsored links:




Offline tbird

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Re: Gravity Mill - any comments to this idea?
« Reply #78 on: August 25, 2006, 05:15:54 PM »
hi  keytronic88,

great addition to our cause.  the Don Adsitt site has to get a gold star too.  if John Herring had sent as much info as in on your link, there might not have been as much confusion.

good to have you onboard too.

hi mark australia,

better late than never.

to my knowledge, the only units that have been built would have been by the inventor, John Herring.  at the link above, in keytronic88 post, Mr. Herring mentions showing his unit to a school or two.  the pages there don't show a complete unit, but there are a lot of drawings of verious parts with some explanation.  if you can read thru those pages, you should come away with a fairly good picture of the type and size right for you.

good to have you onboard too.

tbird

ps  has everyone had a smile today?

Offline hartiberlin

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Re: Gravity Mill - any comments to this idea?
« Reply #79 on: August 25, 2006, 08:52:47 PM »
It is directly here at icestuff:

http://www.icestuff.com/energy/elsa/

Best start with looking at picture #770
as the others are very confusing sometimes,
if you have not yet understand the basic principle in
#770

The main advantageof the ELSA design is,
that you can pump all water over the moving swimmer piston
body into an upper tank, where you then have stored potential energy
from the water there and it needs only a fraction of this energy
to recompress the swimmer piston body for another cycle.

Free Energy | searching for free energy and discussing free energy

Re: Gravity Mill - any comments to this idea?
« Reply #79 on: August 25, 2006, 08:52:47 PM »
Sponsored links:




Offline pese

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Re: Gravity Mill - any comments to this idea?
« Reply #80 on: August 25, 2006, 09:35:13 PM »

Offline ooandioo

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Re: Gravity Mill - any comments to this idea?
« Reply #81 on: August 25, 2006, 10:38:33 PM »
Anybody made some new calculationst? Will it be possible to compress the shuttle with the gained waterpower?
I think, this will be the sticking point. If we are not able to give enough power to the shuttle that it is able to reinflate in e.g. 10m depth, the whole overunity will be gone.

Has anybody an idea?

Free Energy | searching for free energy and discussing free energy

Re: Gravity Mill - any comments to this idea?
« Reply #81 on: August 25, 2006, 10:38:33 PM »
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Offline hartiberlin

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Re: Gravity Mill - any comments to this idea?
« Reply #82 on: August 25, 2006, 10:39:56 PM »
Maybe we can adopt this cartesian diver to extract energy from
the diving and lifting of the swimmer body ?

You only need a short relay latch push to put a weight onto the bottle
and then remove it again to restart the cycle, but you can earn all
the boyuancy force x distance upwards and downwars as output energy,
if you couple the diver unit to some kind of energy output production unit,
for instance a magnet-coil generator it will slide through.
Also  if you make the bottle more deep, the more output you will get at the
same input.

If you mix that with the ELSA principle, you would only need
to compress the outside water surface, so the center tube, where all
the water is pushed up does not need to be modified.

Have a look at this cartesian diver video:
http://video.google.com/videoplay?docid=-3177135341125519060

Offline hartiberlin

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Re: Gravity Mill - any comments to this idea?
« Reply #83 on: August 25, 2006, 10:43:40 PM »

Free Energy | searching for free energy and discussing free energy

Re: Gravity Mill - any comments to this idea?
« Reply #83 on: August 25, 2006, 10:43:40 PM »
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Offline hartiberlin

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Re: Gravity Mill - any comments to this idea?
« Reply #84 on: August 25, 2006, 10:56:37 PM »
Okay, mix this with the ELSA principle and
we will have a winner !
Look at the attached animation picture. ( you must be logged into the forum)

If you put the egg into a pipe and the pipe goes a bit over the watersurface,
this will be the ideal combination.

Offline tbird

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Re: Gravity Mill - any comments to this idea?
« Reply #85 on: August 25, 2006, 10:59:13 PM »
hi andi,

Quote
Anybody made some new calculationst? Will it be possible to compress the shuttle with the gained waterpower?
I think, this will be the sticking point. If we are not able to give enough power to the shuttle that it is able to reinflate in e.g. 10m depth, the whole overunity will be gone.

Has anybody an idea?

sorry my answer in reply 74 didn't satisfy you.  give  me some numbers and method (way you want to recompress) you want to use and i'll try to do the math for you.

tbird

Free Energy | searching for free energy and discussing free energy

Re: Gravity Mill - any comments to this idea?
« Reply #85 on: August 25, 2006, 10:59:13 PM »
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Offline tbird

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Re: Gravity Mill - any comments to this idea?
« Reply #86 on: August 25, 2006, 11:17:15 PM »
hi
stefan,boy, your mind is really racing!
not sure if i follow your unit, but i get the impression you want to put those electronics under water again,  is that right?

in this case, do you want to make electricy or move water?  don't forget at depth your "egg" still has to be able to expand enough to be buoyant.  if you are making electricy, won't take as much as pushing water.  do you think you can make a gen that will put out as much at that speed as you would get from the water?  maybe you want to do both at the same time?
« Last Edit: August 26, 2006, 01:19:34 AM by hartiberlin »

Offline hartiberlin

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Re: Gravity Mill - any comments to this idea?
« Reply #87 on: August 26, 2006, 12:45:05 AM »
I am just trying to correct my old posting to calculate now
with a 10 Meters deep inside the water 1 Meter high swimmer body.

Does anyone know, how to calculate the work-energy
required to compress normal air to
785,4 Liter of air with 1 bar pressure ?

How much normal air  with normal seawaterlvel pressure
do you need for this ?

Habe a look at :
http://www.peter-junglas.de/fh/vorlesungen/thermodynamik1/html/kap2-3.html

Do I just have to calculate the area under the PV diagramm ?
But with how much air do I have to start in the begining to get
785,4 Liter of air with 1 bar pressure ?

Many thanks.
Regards, Stefan.

Offline hartiberlin

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Re: Gravity Mill - any comments to this idea?
« Reply #88 on: August 26, 2006, 01:00:55 AM »
Well it seems the energy required to compress air in a airpump
to higher pressure with smaller volume is this:

W= - (Integral px dV ) + Pu ( V2 - V1)

With Pu being the pressure of the normail air outdoors at sealevel
and V1 being my 785,4 Liter at 1 bar pressure.

So how can I calculate the Work Energy W, if I don?t don?t know the starting
Volume V2 ?

Offline tbird

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Re: Gravity Mill - any comments to this idea?
« Reply #89 on: August 26, 2006, 01:19:36 AM »
hi stefan,

i could not understand anything on your last link (not my language).

the metric system is pretty cool, but.....iget lost pretty quick with this stuff.

in psi and pounds, we might be able to figure something.  like how much water.  if we know that, you can figure how much work you can do with the leftovers.  would that be good?

 

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