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Evaluate tiny thermoelectric generator with this thermoelectric power generation kit

December 18, 2008

If you’re evaluating energy harvesting technologies, you may want to check out this thermoelectric power generator kit from Nextreme. Nextreme wants to make it as easy as possible to get you started with its Seebeck effect-based thin-film embedded thermoelectric generator. (The Seebeck effect is present in two different metals or semiconductors where a thermal difference produces a voltage across the two.)

The evaluation kit provides a thick-film heater as a controllable heat source, Nextreme’s eTEG UPF40 power generator module, a heat sink/fan assembly, and thermocouples for temperature measurement. All you need to provide is a power supply for the heater and a volt meter to measure the voltage generated by the eTEG across a load resistor.  The kit costs $295.

Nextreme claims the eTEG produces output power levels of >90mW at ΔT of 70°C and >260mW at ΔT of 120°C.   With modules measuring just 1.6mm x 3.2mm, the eTEG has corresponding output power densities of about 5W/cm2 at 120°C.

 
THermoelectric generator kit

Nextreme Thermoelectric generator kit phot

Posted by Margery Conner on December 18, 2008 | Comments (2)

January 8, 2009
In response to: Evaluate tiny thermoelectric generator with this thermoelectric power generation kit
DaltonC commented:

What metals are the eTEG made out from? What is the maximum temperature that the eTEG can handle with out melting or loosing its optimization? I have a situation where i want to use a considerable amount the eTEG to produce electricity roughly 1kW at around 500C. Any advice will be helpful thank you.


December 19, 2008
In response to: Evaluate tiny thermoelectric generator with this thermoelectric power generation kit
TomW commented:

Technically, the Seebeck effect occurs within a wire that has different temperatures at its ends. You need 2 wires with different Seebeck coefficients (different materials)to measure the potential difference with a meter or harvest energy. The potential difference does not occur at the junction.

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