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Posted by Morris Dovey on May 22, 2008, 12:20 pm
Please log in for more thread options Morris Dovey wrote:
> renewable_sources@hotmail.com wrote:
>
>> We would like know if there is anyone interested in purchasing solar
>> concentrators. We are considering manufacturing a line of parabolic
>> type reflectors (round & linear) Our objective is to produce low cost
>> concentrators from 11" to 44" in diameter & linear from 2' to 10'
>
> Depending on specs, I might be interested in both types. I'd be
> particularly interested in dimensions of focal area, materials used, and
> expected longevity.
>
>> We hope to keep within a price range of $25 to $200 usd for round
>> types. Linear types are in development and price range is yet to be
>> determined.
>
>> 11" prototype will produce smoke on a piece of MDF in less than 30
>> seconds.
>
> NBD. My 4x8 parabolic trough produced smoke on a piece of fir in less
> than 3 seconds. The more important question is how well it'll perform
> ten years later - and I don't have great expectations for my
> rear-silvered 3/16" polycarbonate mirror. You might address shipping and
> whether these can be shipped compactly (knocked-down) for assembly by
> inexperienced folks at point of use...
>
>> Please feel free to respond by post or email if interested. There is
>> no obligation, if you respond. We are only assessing market interest
>> at this time.
>
> Did. Don't feel any obligation. Talk to us!
Well, it's been almost a week. Just in case they don't come back or
didn't find enough market interest, I'll offer a set of seven
CNC-machined plywood ribs for US$99.95 - the set is suitable for use
with a sheet of 4'x8' mirror material to build a parabolic trough. The
trough I built with these ribs concentrates the light to a 3/8"-wide
line and produced a 724F temperature.
My offer ends when they identify themselves and post firm specs and prices.
--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/
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