Fieldlines.com || Comments Solar thermal Applications.

Front Page - [Homebrewed Electricity-- (wind) (solar) (hydro) (steam) (controls) (storage) (mechanical)] - Classifieds - Site News
Everything - Newbies - [Remote Living-- (housing) (heat) (light) (water)] - Reviews - Diaries - Our Products

Solar thermal Applications. | 11 comments (11 topical)

Re: Solar thermal Applications. (3.00 / 0) (#3)
by Julius Tangka on Mon Aug 02, 2004 at 08:26:33 AM MST

Like every solar system, there must be a collector of solar radiation. My unit has collector/generator located behind the sytem. This contains a mixture of ammonia and water in a sealed container. The box is covered by two layers of glass separated by a space of 5cm. All incident solar radiation is absorbed by the black body generator located inside the box and very little is lost. Consequently the temperature rises steadily until ammonia is liberated from the generator to the piping net work. The flow of ammonia in the system with various changes in state, results in the cooling of the compartment. Only the collector assembly needs to be outside although the heavy insulation of the refrigeration chamber prevents heat gain to the system. Like mmost intermmittent systems the heat source has to be taken away to allow the generator to cool. I do this by covering the collector from solar radiation.

[ Parent ]

Re: Solar thermal Applications. (3.00 / 0) (#6)
by Ungrounded Lightning Rod on Mon Aug 02, 2004 at 04:00:40 PM MST

My unit has collector/generator located behind the sytem. This contains a mixture of ammonia and water in a sealed container. The box is covered by two layers of glass separated by a space of 5cm. All incident solar radiation is absorbed by the black body generator located inside the box and very little is lost. Consequently the temperature rises steadily until ammonia is liberated from the generator to the piping net work. The flow of ammonia in the system with various changes in state, results in the cooling of the compartment. Only the collector assembly needs to be outside although the heavy insulation of the refrigeration chamber prevents heat gain to the system. Like mmost intermmittent systems the heat source has to be taken away to allow the generator to cool. I do this by covering the collector from solar radiation.

Have you tried the continuous ammonia/water/hydrogen/sodium chromate version of this cycle, as used in propane refrigerators?

(I've often thought that this cycle would be marvelous for solar-powered refrigeration, though probably inadequate for air conditioning.)

[ Parent ]

Re: Solar thermal Applications. (3.00 / 0) (#8)
by elvin1949 on Tue Aug 03, 2004 at 01:58:22 PM MST

the only problem i see is shading the outside
unit.
look's to be manual.
i would try to modify a solar roof vent from
a greenhouse to supply shade when needed.
just a thought
have fun
luck
later
elvin

[ Parent ]

Solar thermal Applications. | 11 comments (11 topical)

Menu

· create account
· How to use the board
· FAQs
· search the board
· Google search the board

Login

Make a new account

Username:

Password:

You must be a registered user to post here. It's easy and free, and the link is on the upper right side of your page.
All trademarks and copyrights on this page are owned by their respective companies. Postings are owned by the poster, but may be deleted or moved at the ADMIN's sole discretion. The Rest © 2009 Forcefield.
You can Email the board ADMIN here. PLEASE include the username you signed up with!