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Low cost solar conentrators

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renewabl...@hotmail.com

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May 15, 2008, 11:07:01 AM5/15/08
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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'

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.

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.
Thanks, Bob

Morris Dovey

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May 15, 2008, 11:51:17 AM5/15/08
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renewabl...@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!

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

Ulysses

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May 15, 2008, 12:18:20 PM5/15/08
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<renewabl...@hotmail.com> wrote in message
news:f9ko241khimupv6sr...@4ax.com...

I'm not all that interested in just a collector per se however if you come
up with a collector and a steam or Stirling engine that drives a generator
and produces power and is not terribly expensive and all you have to do is
add water I'd be interested even if it produces only a few hundred watts.


ronwagn

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May 21, 2008, 10:22:36 PM5/21/08
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I think you would find a lot of takers, including myself. I would make
up a list of possible practical uses for them, and keep adding to it.
Also would consider carrying frames and stands, plus accessories.
Something to place objects on the focal point. Containers, food
holders etc. I would like to make char out of leaves and sticks, but
am no allowed to burn. Ideally there will soon be some sort of small
heat engine marketed that will make electricity from your dishes. You
tube would be a good place to advertise, plus sites like this one.

Eneco is working on a chip to directly convert heat to electricity,
then there are Stirling, and steam engines.

Good luck with your endeavors. We need thousands of people like you,
producing small energy products.

All the best,

Ron Wagner

duber

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May 22, 2008, 11:51:02 AM5/22/08
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Go for it, lot of solar applications could use this product!


<renewabl...@hotmail.com> wrote in message
news:f9ko241khimupv6sr...@4ax.com...

Morris Dovey

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May 22, 2008, 12:20:07 PM5/22/08
to

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

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May 22, 2008, 12:58:39 PM5/22/08
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Morris Dovey wrote:

> 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.

Just in case there's anyone out there who wants even higher
temperatures, I'll offer a rib set for building an 8'x8' parabolic
trough for a mere US$249.95 - two of these sets can be combined to build
an 8'x16' trough. Shipping, of course, is extra.

I won't recommend building much wider than 8' because you might be in
danger of melting/vaporizing whatever you put at the focus. :-)

Ken Maltby

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May 22, 2008, 4:52:17 PM5/22/08
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"Morris Dovey" <mrd...@iedu.com> wrote in message
news:4835a680$0$33225$815e...@news.qwest.net...

You wouldn't have any plans for a flash boiler/heat exchanger
to go with that would you?

Luck;
Ken


Morris Dovey

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May 22, 2008, 5:00:13 PM5/22/08
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Ken Maltby wrote:

> You wouldn't have any plans for a flash boiler/heat exchanger
> to go with that would you?

I don't - but if you find 'em, let me know so I can let others know.

FWIW, we only use ours to heat air for driving fluidyne engines (no steam).

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