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Author Topic: Earth Energy Batteries  (Read 115377 times)

FreeEnergy

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Kysmett

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Re: Earth Energy Batteries
« Reply #16 on: May 13, 2005, 04:31:56 PM »
Okay then.  Lets decide what the low end for useful voltage is.  What would be the smallest valid load application?  Garden LED's?  Full lamps for the walk-way?  Any ideas?

hartiberlin

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Re: Earth Energy Batteries
« Reply #17 on: May 14, 2005, 09:07:42 AM »
all sorts of LED lightning.
Depends on how much power you can draw.
Build the cells bigger and you can draw more power and use high power LEDs.

betajim

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Re: Earth Energy Batteries
« Reply #18 on: May 14, 2005, 04:32:43 PM »
Okay then.  Lets decide what the low end for useful voltage is.  What would be the smallest valid load application?  Garden LED's?  Full lamps for the walk-way?  Any ideas?

Well, 0.4 volts would make a good cut-off. Most of the transister boost circuits that operate
LED's will stop working below 0.4-0.35 volts. I don't know what the voltage per earth battery
cell is, but build enough cells in series to give a reasonable starting voltage, say 5-6 volts.

For the load resistor, something in the range of 30-100 Ohms and rated at 5 watts would be
reasonable. Then you need to periodically measure the voltage across the load resistor. Use
the voltage measurement to calculate the current and you then have one current, time point
to plot on a graph.

At the end of the test, integrate to get the area that is below the data points on the graph. The
area will be equal to the batteries Amp hour rating. If you supply the data I'll write the program
to do the integration of the data.  :)

Kysmett

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Re: Earth Energy Batteries
« Reply #19 on: May 17, 2005, 10:12:07 PM »
Okay, sounds fair.  There is only one other variable.  Soil quality.  I don't have the resources to conduct periodic soil quality and moisture content tests throughout the experiment.  If we are willing to forego that, I will start gathering materials.

betajim

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Re: Earth Energy Batteries
« Reply #20 on: May 18, 2005, 04:43:05 PM »
Okay, sounds fair.  There is only one other variable.  Soil quality.  I don't have the resources to conduct periodic soil quality and moisture content tests throughout the experiment.  If we are willing to forego that, I will start gathering materials.

Hi Kysmett,

I don't think repeated soil quality or moisture tests are too important. What should be done though, is
find a location where you don't think soil moisture will change much during the experiment. Once the
battery is buried it might be a good idea to cover the area with a plastic sheet to help prevent any
moisture change. Saving a dried sample of the soil from the area would be a good idea too.

Well, I'm sure there are some other things that can be done to make this a good experiment, but
they can be hashed out later.  ;)

rst

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I have a problem Earth Energy Batteries
« Reply #21 on: December 02, 2005, 07:28:44 PM »
I have a problem when i connect them in series to get 12 volts

With one battery (copper pipe and zink rod) i have 1.1 volt add one battery in serie i have 1.8 volt and add third i have only 2 volt my maximum with 10 battery is only
2.2 volt

hartiberlin

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Re: Earth Energy Batteries
« Reply #22 on: December 02, 2005, 07:34:29 PM »
you have them too near to each other.
You have to insolate them from each other, otherwise
the moist ground builds a shortout for the voltage,
although you would get higher currents due to higher
metal surface...

rst

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Re: Earth Energy Batteries
« Reply #23 on: December 02, 2005, 07:42:59 PM »
I have put 1 feet between each pipe (battery)

Sorry for my bad english!

rst

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Replace paint by tape
« Reply #24 on: December 02, 2005, 09:48:03 PM »
It is possible to repalce paint by tape

hartiberlin

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Re: Earth Energy Batteries
« Reply #25 on: December 03, 2005, 11:43:00 AM »
Just isolate them in plastic boxes filled with wet sand and then put them in series...

rst

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Re: Earth Energy Batteries
« Reply #26 on: December 03, 2005, 01:41:39 PM »
Which is the lifespan of this system?

This is a chemical reaction between copper and the zinc which gives electricity?

adrian

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Re: Earth Energy Batteries
« Reply #27 on: January 18, 2006, 02:13:00 PM »
Earth Energy batteries remind me of something that I read recently in the jnl labs group about getting electricity out of trees.

I tried it and got 1.03 v steady. Never got to meassure the current though. No time.

I was wondering if anyone in this forum has heard of this or may be tried this.

The experiment is simple, one nail on the tree and a 1/4" cooper pipe about 12cm into the ground.

Would be nice to hear any comments ...

rensseak

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Re: Earth Energy Batteries
« Reply #28 on: January 18, 2006, 03:31:45 PM »
Earth Energy batteries remind me of something that I read recently in the jnl labs group about getting electricity out of trees.

I tried it and got 1.03 v steady. Never got to meassure the current though. No time.

I was wondering if anyone in this forum has heard of this or may be tried this.

The experiment is simple, one nail on the tree and a 1/4" cooper pipe about 12cm into the ground.

Would be nice to hear any comments ...

Into the tree a nail of steel and a cooper pipe into the ground gives a galvanic element. I do not believe that this is good for the tree.

Msclay24

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Re: Earth Energy Batteries
« Reply #29 on: January 18, 2006, 03:58:57 PM »
These people seem to be on the earth to tree path as well. http://www.magcap.com