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Flash steam
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39
comments (38 topical, 1 editorial)
Re: Flash steam
(
4.00 / 1
) (
#17
)
by Andrew (
andrew@lookingglass.com
) on Fri Jun 27th, 2003 at 08:28:20 PM MST
(
User Info
)
Looks promising.
I like the idea of using the water towers as solar collectors to build up some small pressure before the flash tube. The valve is a great idea, as it simply lets some low pressure water squirt in, and when the water flashes, it seals shut. Its a great idea. Looks promising. Might try and build a small solar flash boiler for fun.
Although I would reccomend some heat sinks installed before the valve to simply draw a slight vacuum at the valve. (as pointed out in my idea above.)
Also, I have seen solar boilers before that incorporate a darkend tube running through a focal point of an elongated parabla. (I think the Mojave desert solar thermal power plants runs this way)
-Andrew
[
Parent
]
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
]
Re: Flash steam
(
3.00 / 1
) (
#20
)
by Anonymous Hero on Sat Jun 28th, 2003 at 10:58:46 AM MST
I think if you can keep that parabloic mirror on the focus point (ball flash chamber) at 1000 degrees or close, you might not need a valve at all. The flash explosion would both spin the turbine AND back the water up for a brief moment. Who knows? anyone?
[
Parent
]
Flash steam
|
39
comments (38 topical, 1 editorial)
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