Re: Methane and other winds (was Re: alternatives to big oil andifthey can ...

From: Spike Jones (
Date: Fri Feb 04 2000 - 22:22:21 MST

> Stirling Westrup wrote: What
> is the highest density chemical energy storage that is currently known?

This is a much more complicated question than it looks.

> answer different if we look at joules per mililiter instead of per gram?

Of course. If volume doesnt matter, hydrogen and flourine
pack a tremendous bang per gram. Solid rocket fuels are
way down on specific impulse per unit weight, but they
exceed liquid rocket impulse as a function of volume. Furthermore
the answer depends on how you want to actually *use* the energy.
For instance, a hand grenade has less chemical energy than
a twinky. If you are interested in converting energy via
internal combustion, good old octane is quite respectable.
As far as energy released, a rusting piece of iron does well.
If you are imagining chemical storage for nanoconstruction,
mitochondria have found a good energy transfer medium,
the breakdown of simple sugars.

Please sharpen the question Stirling.

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