Thermoelectric generator and piezo

[tkellylord]

Hi guys,

Ok so i'm making a energy charger whilst camping and am researching into new sources of energy.

One is thermoelectric. Was thinking I might be able to intergrate into a jacket, maybe a peg you stick in the ground or the ground sheet under the tent or any source with the biggest difference in temperatures.

All the videos online use ice or a blow torch which is quite extreme temperatures compared to the camping environment. Does anyone know what difference in temperature would be needed to produce any power?

Another concept is a piezo electric generator, harnessing the vibrating energy whilst walking. I love the idea but not sure if it will produce enough power.

Any input would be great! Thanks if you can help

Tom

 

[tkellylord]

How about using piezo electric or similar in a ruck sack. The up and down motion of walking could generate energy.

...not sure how much energy tho. Will look into

 

[kflynn11]

Linear Technology makes a line of ICs designed to capture the energy from a piezoelectric source (www.linear.com/3588) or a thermoelectric source (www.linear.com/3108). Check out http://www.linear.com/products/energy_harvesting for circuits, applications and tips on selecting the piezo or thermoelectric transducer.