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Overunity Machines Forum



Peltier Generating More Watts Than A Solar Panel

Started by billmehess, September 11, 2008, 06:04:39 PM

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Bubba1

Quote from: billmehess on September 11, 2008, 08:10:24 PM
Yes I ran the same numbers but:
1000 peltiers in series would read 1000 x .019 volts= 19 volts
The same 1000 peltiers in series would read 1000 x .2 amps = 200 amps

200 amps x 19 volts = 3800 watts.

I agree the voltages would add up in series.  1000 peltiers in series would give 19 volts.  However, the amps do not add up in a series circuit.  The same current goes through all of the peltiers.  Do you really think that there would be 200 amps going through those skinny wires?

billmehess

Each peltier is acting as a individual charging station. If there was not a culmulative effect happening then I would not be seeing a step increase in both voltage and amperage as measured on the individual meters. The digital meter measuring the voltage and the 600ma meter measuring the amperage.
I took another capacitor and "charged it up" to 100 mv and 200 ma from the four peltiers. I removed the cap from the system and discharged it into the voltmeter and it read around 95mv.
I then reccharged the cap to 100 mv and discharged it into the amp meter and it spiked at 200ma.
I understand your math but the fact of the matter is that it is charging both amperage and voltage in series.

Of course 3800 watts would fry the system.

Again each peltier, acting independent of each other until is acting as its own charging station. In a panel configuration the entire system would read the culmulative levels. It might be possible to pulse charge a battery pack as is used in a standard solar system. Even though
the pulse would momentarily "drain" the panel it in effect recharges itself within seconds.

Also when I used a simple magnifing glass on the surface of one of the peltiers not even focused at its smalled point the amp meter pegged (600ma+) and the voltmmeter read 300 mv.

TheOne

You seam to not understand that your calculation is wrong, its 4w not 4000w, you cannot multiply 2 times 1000, only one time, the best way to calculate is to get the w from one peltier and then multiply it by 1000 not by 1000000

Anyway, i was looking at this too, maybe with a concentrator (mirror dish) could be used to focus the hot ray sun in a piece of metal that lye on few peltiers devices and maybe you can really get something useful from it.

GM is about to release a generator working on this principe, not sure if they use peltier device but they seam to generate enough power to be used as generator.


hydrocontrol

The best way to increase the power level is to increase the temperature differential between each side of the Peltier Junction. So the best way to do this is cool one side of the junction using a large heat sink. The other peltier side attach a piece of aluminum painted black and focus the sun on the aluminum. Make sure to use heat sink compound.  ;)

So you need four of these.
http://www.electronickits.com/kit/complete/peltier/ck500.htm

Remove the wimpy peltier junction and replace with one of these better junctions
on each assembly. Total four needed.

http://cgi.ebay.com/Gigantic-62mm-545-Watt-Thermoelectric-Peltier-Cooler_W0QQitemZ310081827783QQihZ021QQcategoryZ4660QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Hookup the 12vdc fans to be run off the peltiers.

get one of these surplus parabolic dishes discussed here at overunity and retrofit it with the above assembly.
http://www.overunity.com/index.php?topic=5453.msg125595;topicseen

Ebay source for small dish
http://cgi.ebay.com/DIRECT-TV-TRIPLE-MULTI-SATELLITE-DISH-SATALITE-SATELITE_W0QQitemZ150293343590QQihZ005QQcategoryZ29783QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I think you should be able to get 1500 watts with fan losses and losses from running four 545 watt peltier devices. Maximum possible would be 2180 watts but that is not going to happen.

Fan assemble $35.00 x 4 = $ 140.00
545 watt Peltiers @ $30.00 x 4 = $ 120.00
Parbolic dish = $ 45.00
A bit of engineering and for less than $400.00 you should have about 1500 watts plus on a sunny day.

Now compare with the cost of $ 400.00 for some creative backyard engineering against this  ebay listing for 6 solar panels that put out 180 watts each (6x180=1080 watts) for $3,780.00 and take up a lot of room.  ;D  ;D

http://cgi.ebay.com/Pallet-of-6-180-Watt-solar-panels-3-50-watt_W0QQitemZ220280243462QQihZ012QQcategoryZ41981QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Looks like it might pay to be creative.  :o  :o