ElPerfecto.com » rocket stove http://www.elperfecto.com Make your own energy, Grow your own food - plus science and tech stuff Mon, 19 Jul 2010 21:54:40 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 Peltier Cooler Generates Electricity http://www.elperfecto.com/2010/01/25/peltier-cooler-generates-electricity/ http://www.elperfecto.com/2010/01/25/peltier-cooler-generates-electricity/#comments Mon, 25 Jan 2010 05:24:10 +0000 Earl http://www.elperfecto.com/?p=602 Made a quick rocket stove with bricks.  Put a Peltier cooler on the back and got a fire going.  Measured the current, volts, and watts produced from a single Peltier cooler.  A cooling fan and aluminum heatsink with a 12V portable battery helped.

Peltier_Cooler_Rocket_Stove

Peltier Cooler (also called TEC or Thermo Electric Cooler) - resting against a hot brick

Video of experiment…

The fuel for the fire was just fallen tree branches that I found on the ground.  The portable battery was charged up by a solar panel.

The Peltier cooler rested against one of the bricks.  The brick got up to 210 degrees F while the aluminum heat sink was about 70 degrees F.  At this temperature difference (140F), the Peltier cooler produced:

  • 70mW
  • 1.05V
  • 67mA

The power generated by this Peltier cooler is comparable to the power generated by a small solar panel on a solar landscaping light.

solar-landscape-light

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