Home > Archive > Home Automation > June 2005 > Re: Cooling attic (and home) by spraying water on roof (shingles)- good/bad?









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Author Re: Cooling attic (and home) by spraying water on roof (shingles)- good/bad?
Chas Hurst

2005-06-27, 12:25 pm

Don't cooling towers use evaporative cooling?

"Phil Scott" <philscott@philscott.net> wrote in message
news:d9ocdq$2hf$1@news.tdl.com...
quote:

>
> "Some Guy" <Some@Guy.com> wrote in message
> news:42BF3E57.659FD057@Guy.com...
> the
> cooling
> amount of
> cooling
> brought to an
> boiling and
> cooling.
> house in
> saturated
> saturated
>
> I am a mechancal engineer doing these sorts of calculations
> and systems for over 40 years.. and you are entirely correct
> if the humidity is say 50% and the outside air is 90F... you
> can cool the air to 75 or so but the humidity is then up into
> the 80% range and all the problems you mention manifest.
> Thats why evaportive cooling is not used in many cases.
>
> However in areas where the relative humidity is in the 20 to
> 30% range, and the outside air is over 90F... then the supply
> air can be cooled to 70F and 50% relative humidity..that works
> very well/
>
>
> water
> gets very
> cooling
>
> Its workable...but there are problems ..its seldom used
> because of those problems. You get to do whatever you wish
> though its yer house. Have fun.
>
>
> canopy to
> nasty
>
> Oh please.
>
>
> Phil Scott
>
>



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