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BSOSCBlog.com • View topic - TEG (Thermal Electric Generator) Info

TEG (Thermal Electric Generator) Info

TEG (Thermal Electric Generator) Info

Postby jpf1030 » Mon Mar 08, 2010 5:17 am

Howdy All,

Evidently I lost the original info to be posted on TEG, the process of a generating unit being placed near a stove pipe or other source to generate small quantities of electricity. Below, I am posting some info sent to me by Elizabeth of Task Force #1 that she found on Jim Rawles, survivalblog.com site, a great blog site. Tons of great info gets posted there.

TEG's are of much interest to us, but we have not the manpower yet to devote to the R&D we need to do to start experimenting.

Happy Preparedness Trails,

jpf
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Two Letters Re: Thermoelectric Generators for Wood and Coal Stoves

By James Wesley, Rawles on February 27, 2010 7:56 PM

James,
To follow up on an earlier letter and your reply, Thermoelectric Generators (TEGs) work by generating power from the movement of heat from the hot side to the cold side of a dissimilar metal junction. An important consideration is that TEGs can become heat saturated or worse if you can melt your TEG, so don't just throw it in the middle of a fire!

I followed a design from "The Boy Electrician" by Alfred P Morgan 1913. It uses German silver wire and copper wire with hammered junctions, there are better combinations but this was easy to get. It would make enough electricity to run a small radio like the kind found on dollar store crank radios or a few LEDs. Modern TEGs are much more efficient and use a solid state Peltier–Seebeck chip. Be sure to buy a high temp solder chip, since the ones used in coolers will melt at much lower temperatures. These solid state devices can also be used with lanterns. In my experiments, I used one attached to a home made brass reflector on a kerosene pressure lantern and produced less than a watt at 3 volts. But several can be ganged [together in series,parallel, or series/parallel arrangements] for higher voltage or amperage. TEG lantern/radios are available.

Shalom, - David in Israel (SurvivalBlog Correspondent in Israel)



James,
Since I have messed with TEGs for some time, I ran across the guys at Hi-Z Technology. Check out the work they and others have done with their product. - Robert, in Nashville, Tennessee
Visit SOS General Store for all your
jpf1030
 
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