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Author Topic: Using Gravity and Buoyancy to drive a generator  (Read 19915 times)

frare bear

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Using Gravity and Buoyancy to drive a generator
« on: May 27, 2014, 08:38:26 PM »
With these two opposing forces... should we not be able to generate non-stop motion and energy?

I have some plans drawn up, and will start on a prototype soon. Essentially it is a water column with one-way gates, where slightly-less-dense-than-water weights can travel upwards. The gates allow for control of the water pressure due to the column of water. Once the weight reaches the top of the water column, it descends on a belt-driven system that can turn a generator as well as operate any moving parts required on the machine itself.


...is there any reason this can't/won't work? It's as simple as utilizing natural motion that occurs in opposite directions.

LibreEnergia

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #1 on: May 28, 2014, 12:46:56 AM »
With these two opposing forces... should we not be able to generate non-stop motion and energy?

I have some plans drawn up, and will start on a prototype soon. Essentially it is a water column with one-way gates, where slightly-less-dense-than-water weights can travel upwards. The gates allow for control of the water pressure due to the column of water. Once the weight reaches the top of the water column, it descends on a belt-driven system that can turn a generator as well as operate any moving parts required on the machine itself.


...is there any reason this can't/won't work? It's as simple as utilizing natural motion that occurs in opposite directions.


This cannot work. Buoyancy is caused by gravity. Without a gravitational field there is no 'buoyancy'. As such it is not a "opposing" force. Since gravity is the only force in play any machine utilizing it as the prime mover is subject to the limitation that gravity is a conservative field.

The energy gained moving a mass downwards is exactly equal to or less than the energy required to move this mass back up to the same position.

The situation with a buoyant object merely reverses this. It takes energy to submerge the object downwards. The energy gained as it rises is the same as it took to submerge. The net energy available to power a load in such a system is zero.



frare bear

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #2 on: May 28, 2014, 01:10:47 AM »
EDIT: sorry, looking back at the OP I realize I gave a poor explanation. I will draw up and post a schematic later tonight

I don't believe you understood my explanation...


The buoyancy and gravity forces are utilized independently. It's essentially a density driven up/down motion, but instead of changing the density of the weight going up and down in water, the medium the weight moves in changes.

The weight rises in the water column, then said weight is transferred to a nearby column in which the weight drops through the air, to again be inserted to the bottom of the water column.





You seem to have thought I believed that the weight would somehow float and sink in the same medium... Otherwise the extremely simple physics and conservation principles wouldn't have been brought up.

LibreEnergia

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #3 on: May 28, 2014, 01:50:58 AM »
EDIT: sorry, looking back at the OP I realize I gave a poor explanation. I will draw up and post a schematic later tonight

I don't believe you understood my explanation...


The buoyancy and gravity forces are utilized independently. It's essentially a density driven up/down motion, but instead of changing the density of the weight going up and down in water, the medium the weight moves in changes.

The weight rises in the water column, then said weight is transferred to a nearby column in which the weight drops through the air, to again be inserted to the bottom of the water column.





You seem to have thought I believed that the weight would somehow float and sink in the same medium... Otherwise the extremely simple physics and conservation principles wouldn't have been brought up.

It simply does not matter what geometry or mechanism you have come up with. It will not work.

In this case the act of making the buoyant object enter and leave the fluid requires energy. This energy is exactly the same amount or more than the energy than can be derived from the ascent of the object.






frare bear

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #4 on: May 28, 2014, 02:11:02 AM »
Haha okay dude. I came here for feedback on design, to "bake" it the other halfway. I'll go back to where I came from

MarkE

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #5 on: May 28, 2014, 02:43:31 AM »
With these two opposing forces... should we not be able to generate non-stop motion and energy?

I have some plans drawn up, and will start on a prototype soon. Essentially it is a water column with one-way gates, where slightly-less-dense-than-water weights can travel upwards. The gates allow for control of the water pressure due to the column of water. Once the weight reaches the top of the water column, it descends on a belt-driven system that can turn a generator as well as operate any moving parts required on the machine itself.


...is there any reason this can't/won't work? It's as simple as utilizing natural motion that occurs in opposite directions.
Buoyancy is the gravitational force of displaced fluid.  If you can figure out how to get free energy out of buoyancy then you should be able to figure out how to get free energy out of two pails of water connected by a rope thrown over a pulley.

rice

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #6 on: May 28, 2014, 07:18:28 PM »
I looked into this a few years back.  Have a look at how far this guy went with the idea.  The big problem is it can not be looped...  Good luck!

http://m.youtube.com/watch?v=gxnHJoyrQpM

LibreEnergia

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #7 on: May 29, 2014, 12:33:15 AM »
Welcome Frare Bear,

Don't worry about them,, they will post without thinking, nor asking nor considering anything other than there own beliefs,, it is not there fault really, it is just the way they are.

There will be others that are reading what you put out and might be able to answer your questions.

On the contrary this is not a post 'without thinking'.  I'm posting this to try to help people avoid wasting their time on concepts such as this that are fundamentally flawed and unworkable.

It's not the 'way we are', it is the way nature is and how our knowledge about nature allows us to understand why ideas like this do not work.

MarkE

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #8 on: May 29, 2014, 01:35:26 AM »
LibreEnergia, exactly.  Webby and anyone else who believe that there is a workaround for things like the conservative nature of gravity are welcome to investigate their ideas and produce supporting evidence. Many have tried.  None have produced that supporting evidence.  Noting what available evidence tells us is not a consequence of a chosen ideology.  It is a practical use of critical reasoning.

Rigel4

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #9 on: May 29, 2014, 02:27:03 AM »
I looked into this a few years back.  Have a look at how far this guy went with the idea.  The big problem is it can not be looped...  Good luck!

http://m.youtube.com/watch?v=gxnHJoyrQpM

This is a great video. It does not work as OU,  but I appreciate you  posting it. As an aside I do not think of "free" energy but ways to make the devices more efficient.  Build the tower, put a water bed mattress on it, use rain water to fill. Or take 2 trees and tie a cable between them that has some slack. Once the wind separates them use the slack to raise the water back to the water bed mattress. Use this to augment the water flow.
Cheap! I wish Tommey Read was on this site. He loves cheap and can build things for nothing.


MarkE

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #10 on: May 29, 2014, 04:46:51 AM »
Tommey is a very talented builder.

MarkE

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #11 on: May 29, 2014, 03:35:39 PM »
Now go and read the reply again.

Why would a, no one so far has been able to make it work, not be sufficient,, instead of a post without consideration,, why just slap down someone with an idea BEFORE you even hear the idea,, that was what I was pointing out,, and no you can not help it because that is the way you are,, many of you.

You could tell a quick story of your own failed attempts,, mine would be about the volume exchange problem that I never could work around,,

Consider HOW you respond and if you have the information to actually respond,, so far all we know is a column of water and some gates,, with a float,, sure that has not worked yet and neither did the IC engine until it was built.
Those of us who have studied math and science have the information to understand why these ideas that look for mechanical cheats to conservative systems are dead in the gate.  The fallacy that you trap yourself in is the concept that doing what is really the same thing over and over again amounts to trying out new ideas:  It doesn't.   It is a failure to understand the ideas sufficiently to recognize that they have already been tried many times.

One might believe that somewhere under some grain of sand there is a family of nano-leprechauns with pots of gold galore.  Never mind the complete lack of evidence for such things, some might argue that we should leave no grain of sand unturned looking for those tiny green benefactors.  They are welcome to take on such a task on their own.  If someday they should produce evidence that such a thing is real then the idea will rise above being nothing more than a silly notion.  IOW:  evidence carries weight.  Extraordinary claims need to carry a lot of weight in order to overcome the existing understandings that they seek to overturn.

If one wants to have any real chance of finding an exception to understood science then one had better go looking places that understood science hasn't gone yet, or where understood science still makes gross simplifying assumptions.  Lifting and dropping weights, in or out of fluids is an are that has been trampled to death for millenia.

TinselKoala

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #12 on: May 29, 2014, 07:51:15 PM »
I understand what you are saying.

Take your math and science and tell me, without any input into your math, what the final answer is.

The math by itself can only answer a question asked, but how do you find the question?

How do you know if there is an over simplification or something attributed incorrectly unless you go back many times and look at things in different ways.

Sharing knowledge and understanding is a good thing, and who knows,, maybe 10 minutes of someones time doing that can point someone else in a direction to find an alternate understanding that we all can grow from.

"your science and math?"

The great thing about science and math is that they don't belong to anybody. They are universals, and if two people are using the same data and getting different results... then (at least) one of them is wrong.

I will leave the conclusion as to which one is right and which is wrong ... to the reader.

MarkE

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #13 on: May 29, 2014, 09:25:14 PM »
I understand what you are saying.

Take your math and science and tell me, without any input into your math, what the final answer is.

The math by itself can only answer a question asked, but how do you find the question?

How do you know if there is an over simplification or something attributed incorrectly unless you go back many times and look at things in different ways.

Sharing knowledge and understanding is a good thing, and who knows,, maybe 10 minutes of someones time doing that can point someone else in a direction to find an alternate understanding that we all can grow from.
We find out that our understanding is flawed when we observe phenomena that go against that understanding.  IOW, when we come upon evidence against our understanding.

MarkE

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Re: Using Gravity and Buoyancy to drive a generator
« Reply #14 on: May 29, 2014, 11:22:34 PM »
And therein lies the problem with free energy machine proposals based on things like gravity:  There has never been any evidence that the conservative nature of gravity can be cheated.  HER are no closer to anything that outputs any extra energy today than they were when they started.  It's ditto for the likes of James Kwok, and gurangax.  Sunday will begin gurangax' descent back into obscurity.