Hybrid Car – More Fun with Less Gas

Chrome Solar dish

register ::  Login Password  :: Lost Password?
Posted by Michael Harrington on September 10, 2005, 10:59 am
 
How does chrome perform as the reflective surface for a
solar parabolic collector. Is its effeciency comparable to
silvered glass? Are there issues with regards to weathering,
cleaning etc. Any links appreciated.
TIA Mick.



Posted by Paul on September 10, 2005, 5:42 pm
 


   My first thought would be that chrome is very expensive and not done
much anymore as far as I can tell. You also know the "pitting" problems
with chrome if you have ever seen and old car bumper. I would think that
the reflectance would be good.
  I think these guys use polished aluminum for their troughs, same principle
would apply to dishes, I would imagine.

http://www.industrialsolartech.com/

Some folks use old C band diskes and cover them with relective mylar.
In this case, they used mirror pieces it looks like. Kind of extreme.

http://users.adelphia.net/~4jacksons/solar.htm  



Posted by Duane C. Johnson on September 10, 2005, 6:54 pm
 Hi Michael;


 > How does chrome perform as the reflective surface
 > for a solar parabolic collector. Is its effeciency
 > comparable to silvered glass? Are there issues
 > with regards to weathering, cleaning etc.
 > Any links appreciated.
 > TIA Mick.

Chromium doesn't sound to good at 65%-70$ compared
to aluminum at 99% or so. See:
http://webmineral.com/data/Chromium.shtml

Yes, it is quite durable though.

Reflective Mylar "Greased" onto the surface seems a
better choice although it will be needing replacing
in a few years. The stuff is really cheap though. See:
http://www.mirrorsheeting.com/
http://www.redrok.com/up980301.htm#mylar

Duane

--
     Home of the $5 Solar Tracker      Receiver
    http://www.redrok.com/led3xassm.htm       [*]
   Powered by             \  \     \        //|
  Thermonuclear   Solar Energy from the Sun / |
Energy (the SUN)           \  \     \  /  /  |
Red Rock Energy             \  \     /   /   |
Duane C. Johnson   Designer  \  \  /  \ /    |
1825 Florence St  Heliostat,Control,& Mounts |
White Bear Lake, Minnesota    === \   / \    |
USA      55110-3364                ===   \   |
(651)426-4766        use Courier New Font \  |
redrok@redrok.com     (my email: address)  \ |
http://www.redrok.com   (Web site)          ===

This Thread
Bookmark this thread:
 
 
 
 
 
 
  •  
  • Subject
  • Author
  • Date
`--> Re: Chrome Solar dish Duane C. Johnso...09-10-2005
please rate this thread