$10 TEC; OVER 3 VOLTS DC BREIFLY AND 2.8VDC CONSTANT! (12PM)1.8Amps Peak Vs Solar Panels!

[fernandesilyt]

How much i can warm the hot side? I got mine from a small refigerator of a coolbox. Im afraid to burn up and melt it...

[luc59457]

@fernandesilyt They are rated around 180 degrees Celsius (cont). If you are transferring the heat quickly like I did in this video (with the ice pot, or running cool water) and wires placed safely, you can get away with around 250C Peak. (30 seconds or less) To get the 3 volts that I did, you need around 250C on the hot side and around 50C for the cold side.

[luc59457]

@fernandesilyt Never get cold side to 180! Always keep it under 100

[josephdupont]

I would limit the temp to boiling water.. 212 max.

float the chips on a cookie sheet on hot water and the put a cold watter pan on top.

[cricketol]

have you tried stacking them?

[luc59457]

@cricketol Stacking them may result in the cold side getting too hot and if so will reduce the tecs life or destroy it prematurely. Even though Tecs capture/transfer heat, nowhere near an aluminum heat-sink because of the different material and size.You want the heat to be transferred out of the cold side as quick as possible to prevent it from overheating and to get the T.D.which increased voltage/current. So either a fan to the heat-sinks on top of the Tecs cold side or flowing water.

[luc59457]

@cricketol Furthermore stacking them will result in the top Tec producing less power output.

[lexichronicle2]

It wouldn't be much use up mountains or in polar regions beyond being used as an emergency source of power; cables too long. Heat could be produced by focusing the sunlight onto a water based heat exchanger. But it could keep radios, gps, epirb or medical gear running. Somewhere more normal, you'd want to connect the cold side to a water source (pond / lake / river) or the earth. You'd also want some efficient /cheap (metal) means of conducting heat away (google aluminum foam)

[luc59457]

@lexichronicle2 A company that I have dealt with claim to have a teg module produce 22-30w @ 13-14 V with a 140 -150 Degree Delta T. and a hypothetical design for 200w. I do not doubt efficiency can be improved on these things. I will send you think Url which also explains some methods of heating/cooling. As I stated before this test was just to show the highest temperature difference I could get with what I had.

[lexichronicle2]

i'm sounding kind of negative, but I really liked your video

[lexichronicle2]

"It is not a matter of X amount of heat... It is a matter of X amount of TD. (temperature difference)... I have explained an approximation."

You have that backwards, it's the amount of heat, delta T is a causal factor for the heat moving through; higher temp can move more energy, but so can a better design at same delta T. Volts is set by the barrier energy of the PN diodes, the heat moves a current through it and the growth in voltage that occurs is due to the resistance of the semiconductor

[lexichronicle2]

The energy you're withdrawing from it not only came from the sun, but also the freezer that created the ice; which will have used a lot of energy up in the process of doing so. I'd recommend if you try my spike into the ground idea, you create a little enclosure around the lens and hot side to get the hot side as hot as possible; keep drafts out. a vacuum would be even better. any future patents are now void due to disclose and you own me some money if you sell the spike. :P

[lexichronicle2]

That's an impressive amount of juice, but using ice for this kind of test isn't really realistic, since ice and intense sunlight only occur at the tops of mountains or in the polar regions. If you have to buy it, that rules it out for anyone who can't get to a shop or afford to buy. You should try driving a steel spike into the soil, connecting the TEM to that and then putting a lens over the top.

[luc59457]

@lexichronicle2 The Ice was used for the purpose of getting a higher TD.

[luc59457]

@luc59457 I am well aware it is not the most energy efficient method. There are several other methods to cool the cold side.

[lexichronicle2]

@luc59457 I realize, but it's also not a fair way of doing it if you want to suggest this is a good way to generate free energy; because the ice has taken a ton of energy to produce in the first place, and melts. But that's not to render it useless! After I'd thought about it for a while, I realized there are a couple of places this could be acomplished. E.g. Alaska is often covered in ice and gets sunshine. I believe they're actually working on a big TEM idea there.

[jrlakers84]

do you know the formula on how much X amount of heat = x amount of volts??

[luc59457]

It is not a matter of X amount of heat... It is a matter of X amount of TD. (temperature difference)... I have explained an approximation. 3 volts Dc, is the Peak for one of these modules.. 2.8vdc will be safer continuous... The hot side at 3vdc is around 160-180 degrees celcius (Around the peak temp for these modules) And The Cold Side Was around 30 degrees celcius with the frozen Pot on top.. These are estimates, but they are not off by much.

[luc59457]

I have a module that can handle up to 250 degrees celcius and is suppose to have a peak of up to 8.6volts dc. I have only gotten 3 so far with it also.. I haven't been doing further tests with this.. I decided to take a brake since others are also working on it... This video was to show that the peak is higher than what I have seen displayed online. The module which handles more heat and provides more output is called a "Teg".. It is more expensive than the tec.

[jrlakers84]

what kind of setup can you make to get a consistent 12v to equal a 12v battery? any way to make that really compact?

[luc59457]

That is my goal with this.. I have designed some kind of Tec/Teg heater which can be customized.. In Theory, without too much internal resistance, I should be able to get 40+vdc all in series... If not, their may be a method to have them going to individual high AH batteries (low voltage) and have 2 sets of them, one being charged while the other is powering things, with a quick switch to make them go in series to increase the voltage of the batteries. Not too hard to understand.

[luc59457]

seems to be internal resistance from my findings, and some resources on the net which state the same, still not 100% sure though.

[sjh7132]

Wow, I would have never expected such a high current from these things.

[GREENPOWERSCIENCE]

VERY NICE VIDEO!!!!!!!!!!!