cooling technologies [RE-wrenches]

[Todd Cory, Mt. Shasta Energy Services]

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In a previous live, when I was a engineer for a (so called) "public" 
radio station, one of the remote broadcast mountain tops was cooled with 
the earth. There was about 100' of ~3'diameter cement culverts stacked 
end to end, buried about 4 feet below the ground. On the intake end was 
hardware cloth screening. In the transmitter building a large squirrel 
cage fan sucked cool air through this tube. It worked very well and 
successfully mitigated the inefficient tube transmitter's heat production.

Another example is at the hydro plant I work part time which is mostly 
underground. The highest summer temperature runs about 60 degrees (when 
it is 90 out) and the coldest winter temperature runs about 50 degrees 
(when it is 25 out). This is with considerable air flowing through the 
dam adits (out in the winter and in, in the summer). Harvesting the 
moderating temperatures of the earth seems to be a reasonable solution 
to space conditioning.

Todd

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