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[aprssig] Special GPS

Scott Miller scott at opentrac.org
Tue Jul 26 17:06:58 UTC 2005


I've thought about doing the same thing, but couldn't think of a simple way 
to create an appropriate reflective surface.  Generating power would really 
be a secondary concern - I'm sure I could have fun focusing > 7 kW of energy 
on ANYTHING.  =]

Here's some reading for you, complete with HTML-converted ASCII art.

http://www.redrok.com/engine.htm

Scott
N1VG

----- Original Message ----- 
From: "Robert Bruninga" <bruninga at usna.edu>
To: <tyler at allisonhouse.com>; <aprssig at lists.tapr.org>; <brianbr at mac.com>
Sent: Tuesday, July 26, 2005 9:52 AM
Subject: Re: [aprssig] Special GPS


In response to the solar power tracking post:

I was wondering about using one of many 10 foot
tracking dishes in my backyard to track the sun
and focus an aluminum reflective dish onto a
boiler at the feed.    Then run a steam turbine
to generate power:

* about 7000W solar energy
* with 30% conversion efficiency, about 2kw
   could be available?
* Are there any off-the-shelf hobbiest steam
turbines?

These 10' dishes with just one motor can easily
track the sun.  Only once a week or so, you would
need to use a wrench to re-adjust the declination
for the seasonal variation of the ecliptic.

Bob



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