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re: algae is the only crop to concider for biodiesel!
6 sep 2005
steve spence wrote:
>corn can be pressed for oil for biodiesel
so we grow it, which requires g btu?
then press it, which produces p btu?
>then fermented, mashed and distilled for ethanol
and this process produces e btu net?
>dried distillers grains are sold for animal feed.
this sounds like a (negative) a btu?
>the animals then output animal exhaust which can be biodigested for
>methane...
and this produces a net m btu?
>and the leftover material used for fertilizer for the next crop of corn.
and this takes (negative) f btu?
>want to talk about 20x positive energy ratio's?
sure. what are g, p, e, a, m, and f, and what does all this cost?
i suspect it's more efficient to skip the animals, if we ignore
the meat and milk...
nick
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