TBH I forget myself. Perhaps through madscienceclub, which I've just joined.
Thankyou for your comments. I'm a member of halfbakery.com (BunsenHoneydew) where blimp and zeppelin designs are aplenty.
I'm wondering if some kind of adaptive surface could be used, to mould itself to the optimum shape for lighting conditions on the fly (so to speak).
In overcast conditions, a flat plate is best. Perhaps a compromise would be a series of tubes (snicker) in parallel, with trough reflectors beneath, rather than a single tube and reflector apparatus. If less than boiling temperatures are obtained, oil as a thermal fluid and a heat exchanger to the boiler might be necessary - more weight and expense and lower speeds, but still doable (at a price).
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asenathwaite
(no subject)
Date: 2009-01-24 11:28 am (UTC)Thankyou for your comments. I'm a member of halfbakery.com (BunsenHoneydew) where blimp and zeppelin designs are aplenty.
I'm wondering if some kind of adaptive surface could be used, to mould itself to the optimum shape for lighting conditions on the fly (so to speak).
In overcast conditions, a flat plate is best. Perhaps a compromise would be a series of tubes (snicker) in parallel, with trough reflectors beneath, rather than a single tube and reflector apparatus. If less than boiling temperatures are obtained, oil as a thermal fluid and a heat exchanger to the boiler might be necessary - more weight and expense and lower speeds, but still doable (at a price).
Can't do much about the wind issues though :-/