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The idea is for a tumber composter, turned by a Stirling engine driven by the difference in ambient temperature and the heat given off by the compost itself.
I think it would have the advantage of being self-regulating, if it were designed right, though some seasonal adjustments might be necessary.
Mother Earth News reviews Compost Tumblers
http://www.motherea...mpost-Tumblers.aspx
More background on compost tumblers in general. [jutta, Mar 28 2008]
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(for the record: that first bun isn't mine - I never vote on my own ideas) |
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Great idea. Endless configurations. + |
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I like the idea of a self-rotating, ambiently powered composter very much. The turning time will be so slow you have lots of flexibility in power sources. |
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My choice would be a tiny toy propeller, geared WAY WAY down to spin the barrel every month or so using wind power. |
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Or some sort of waterwheel-esque rain catcher that rotated half a turn each time the top bucket fills? Might need a crude flap valve lid for each bucket to let water in but prevent evaporation. |
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Tremendous. Now build it, ride the "lazy-but-green-at-heart" wave and make yourself rich. |
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My limited understanding of compost is that it needs to be warm but not too warm; hence a Stirling which turns it when it gets too warm, thus cooling it slightly, would provide the necessary feedback mechanism. Excellent. |
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I'm trying to think of a comment that is more than just flattery. Perhaps the methane that is given off can be burned to aid the process. That will do. |
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What's with all these sensible ideas lately? great + |
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Buns to [phoenix] and [sprogga]. |
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