Power from wood stove?

jonrjonr Solar Expert Posts: 846 ✭✭✭✭
OK, not a solar question, but is there any practical ways to get useful power (say 50+W) from a wood stove or other high temp heat source?  Peltier devices?  Micro steam turbine?

Comments

  • PhotowhitPhotowhit Solar Expert Posts: 4,203 ✭✭✭✭
    I get useful power by putting wood in it and burning it....lol.

    There are ways, but practical, not in my opinion.

    http://www.ecosnippets.com/alternative-energy/wood-stove-power-a-small-home/
    Home system 4000 watt (Evergreen) array standing, with 2 Midnite Classic Lites,  Midnite E-panel, Prosine 1800 and Exeltech 1100, ForkLift battery. Off grid for @13 of last 14 years. 1000 watts being added to current CC, @2700 watts to be added with an additional CC.
  • EstragonEstragon Registered Users Posts: 1,435 ✭✭✭✭
    I've seen air circulation fans that run off the heat from the stove, but I doubt they would be 50w
    Off-grid.  
    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
  • peakbaggerpeakbagger Solar Expert Posts: 332 ✭✭✭

    If you have an appropriate heat sink, you could gang up several peltier effect generators and get up to 50 Watts.

  • dennis461dennis461 Registered Users Posts: 81 ✭✭
    boil water steam turbine generator, buy the unit on e-bay for around $125.  Make a small boiler (oops, now you need a license in USA)

    Camden County, NJ, USA
    19 SW285 panels
    SE5000 inverter
    grid tied
  • BB.BB. Super Moderators Posts: 26,769 admin
    Be very careful with steam and boilers--Even just hot water loops in wood stoves have blown up (temperature and pressure relief valve in wrong location, valves in wrong locations, hot spots in fire box, etc.). Water heat exchangers can cause sooting/creosote buildup and cause a chimney fire or a masonry chimney to fail, etc.

    http://www.woodheat.org/heating-water-with-a-wood-stove.html

    -Bill

    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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