{{tag>hardware build}} ====== TEG ====== The TEG, ThermoElectric Generator or Thermocouple Electric Generator, is my project to build a device to directly convert a temperature differential into a power source. ====== TEG-MK1 ====== The Mark 1 is a device that can be powered via a few candles, an alcohol stove (main intention), or a twig fire. The goal is to produce at 5 volts at a minimum of 0.5 Amps--the idea being this is enough to charge and/or power a usb device. ===== Parts ===== ^ part ^ price ^ quantity ^ total ^ link ^ Notes ^ | Thermocouples | $3.41 | x10 | $34.10 | [[http://www.volumerate.com/product/tec1-12706-72w-semiconductor-thermoelectric-cooler-peltier--white-157283|↗]] | | | Heatsinks + Fans | $12.01 | x10 | $120.10 | [[http://www.volumerate.com/product/cooler-master-heatsink-fan-for-intel-p4-and-celeron-d-725r-gp-5112|↗]] | My preference would be to salvage these out of waste computers | | Rectifier | x | x1 | x | | A mains rectifier from radioshack will be more than good enough I already have some of these lying around from dissecting old power bricks. | | Voltmeter | $5.60 | x1 | $5.60 | [[http://dx.com/p/analogue-10v-compact-panel-mount-dc-voltmeter-white-156935|↗]] | | | Ammeter| $5.40 | x1 | $5.40 | [[http://dx.com/p/dc-0-2a-square-panel-mounting-analog-amp-current-meter-ammeter-white-164095|↗]] | | | Booster Converter| $3.90 | x1 | $3.90 | [[http://dx.com/p/03100127-dc-dc-3v-to-5v-boost-converter-charger-module-red-154870|↗]] | | ^ Total with Heatsinks + Fans | | ^ $169.10 | ^ Total without Heatsinks + Fans | | ^ 49.00 | Note: I probably could and should just have a switch (DPDT) to switch between input and output voltages and amps. ====== TEG-MK2 ====== The Mark 2 ramps up power and size. It's intended to run off a large external heat source such as a gas stove or large wood fire. It's intention is to produce enough power (12v @ 4 Amps) to power and charge a Samsung 3 Chromebook.