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Flash steam
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39
comments (38 topical, 1 editorial)
Re: Flash steam
(
4.00 / 1
) (
#19
)
by troy on Sat Jun 28th, 2003 at 08:50:07 AM MST
(
User Info
)
The big advantage of parabolic trough collectors is that they only have to be tracked in one axis, in comparison to a parabolic dish collector which must be tracked in both altitude and azimuth. Plus the boiler/heater tube in a trough collector sees less photons and heat per square centimeter, reducing the need for exotic high temp materials that still have good heat transfer qualities. Furthermore, a very good approximation of a parabolic trough can be made using plywood ribs and aluminum foil or mylar, so the cost becomes very inexpensive. For something more durable, the trough may be made of many 1.5" wide strips of glass mirror mounted on parabolic ribs.
Best Regards,
troy
[
Parent
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Flash steam
|
39
comments (38 topical, 1 editorial)
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