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Sorry I thought you said the concentrating systems would not work well enough. On the micro gravity of an asteroid such heating systems make even more sense.
Jim Brown
From: EOS Mars Program <eos.mars.program@...>
To: NEAmines@yahoogroups.com
Sent: Wednesday, July 1, 2009 4:31:39 AM
Subject: Re: [NEAmines] Heat Differentials and more
Ueli,
Yes, I am clear on this one, and I think we need to label them
differently.
The point I was making on the stats, is how efficient these electric
drive mass ratios are in themselves, even without the higher output
of MET's (although these need more solar array area, the power per
sq. metre on current PVs seems good for these purposes).
Jan
On 1 Jul 2009, at 07:19, Ueli Scheuermeier wrote:
> Yes, as far as I figure, we need to differentiate electric drives
> (such as ion engines) from electrothermal drives, such as METs. Big
> difference, I believe.
>
> Ueli
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