Turn a satellite dish into a parabolic dish

[triffid]

I goofed here.I should have said that glass blocks uv radiation and quartz does not.So quartz allows more light energy through it than glass(ie,more wavelengths).Although what I said about ir radiation going through glass was correct.I may not be right about about quartz blocking it(ir radiation).Triffid

[triffid]

For those of you wanting pirate satellite TV doing a web search on "satellite rookie" is a good place to start.Some one in this thread earlier mentioned satellite recievers.It is up to the broadcasters to secure their signals.If you happen to have a receiver that can pick them up.You are pretty much ok
unless you sell copies of broadcasts or rebroadcast the programs.Triffid

[The_Jerk]

Kampen, if you could make a mirror diffuser(a half coned cylinder lined with mirrors on the inside) at the focal point it would bounce the solar energy to narrower part of the cone.  At this point you add a mirrored tube containing magnifying lenses. This would shape the rays into a beam-solar laser.  The only real complicated part would be directing it-would need a mirrored sphere with an apeture eye that could open/close and rotate the ball to direct it.  Then you could heat or not heat stuff from distances away from the dish.  I designed something like this my last time in afghanistan.  The system consisted of a 300m aluminum polished dish with all those listed components that operated in a system of 12.  This way there would never be a lack of solar power to any one.  They could beam energy from one dish to another, from the day side to the dark side from one to one or from all to one for max power.  We could grow crops at night by opening the eye all the way or focus it into a narrow beam for either heating up water or blasting stuff into ashes.  I'm sure the atmosphere would react in a bad way not to mention burning away cloud cover and messing up weather patterns.  But then again it was just an idea of 24 hour solar power.

[kampen]

@ All,

Looking/searching for a small circulating pump, mustbe heat-resistant because I intend to circulate oil in my Parabolic Solar Heat Absorber. Any advise/help is welcome.

Thanks in advance.

[FreqShift]

 The parabolic dish is so simple. Such an eloquent way to make power.

This guy has some experiences with making parabolic dishes to use as power sources:

http://www.youtube.com/user/GREENPOWERSCIENCE

A parabolic dish power source can be compact too. A 24" dish is capable of making a few thousand watts of electricity on the fly.
The problem, of course, is converting that energy into electricity efficiently.

I love the idea of the solid state Peltier device converting power/sunlight from the parabolic dish. But most Peltier devices are inefficient at the moment.

However, this company claims to have an answer to higher efficiencies, 70-80% of Carnot efficiency. Very useful to the parabolic dish setup.

http://www.powerchips.gi/technology/pcalc.shtml

There must be a way to make these "solid state thermal electric generators" cheap and plentyful.

I envision a 36" parabolic dish on the roof of my RV, tracking the sun as I camp.  Providing 3500 Watts of power on the fly, and charging my 8 deep cycle batteries.

Any inputs?  Any homebrew ideas?


Here are more extremely interesting links:


http://keelynet.wordpress.com/2008/02/12/new-highly-efficient-thermoelectric-generator-invention/

http://www.navysbir.com/n07_1/n071-086.htm

http://www.advanceddiamond.com/products.html

http://www.johnsonems.com/?q=node/2

http://www.azooptics.com/Details.asp?NewsID=41

http://www.peltier-info.com/generators.html

http://www.sitechina.com/thermoelectric/Pspec.html