Re: [SB-r-us] Re: Convection Air Conditioning
- I have also heard of the Indians (in India) using a shallow pan of water in the windows and doorways that had a piece of burlap or similar loosely woven fabric covering the opening. The fabric would wick up the water and as a breeze blew through the window or door, the evaporation would cool the home.
RT <archilogic@...> wrote: --- In SBfirstname.lastname@example.org, "LC" <azhaar82604@...> wrote:
> Apparently, he said, when wet, a slight breeze blowing over theCindy;
> damp sand and gravel would cool the tent markedly.
My location in snow-covered/overcast Kanata, Ontario, Canada of
course makes me extremely knowledgable about cooling in the deserts
of Iraq. [[PAUSE] while Murricans in the US SW roll their eyes w-a-a-
ay back in their heads]
The sensation of cooling is felt when air moving past our bodies
carries away the moisture (aka "sweat") into which excess heat was
dumped and transpired though our pores.
That's one of the reasons why many desert dwellers (in the days
before mechanical air-condtioning ) wore heavyweight black garments
that entirely enshrouded their bodies from head to toe despite their
living in environments devoid of natural shade and where the sun beat
The black shroud created a portable macro environment that was in
effect, a solar chimney that induced air movement to effect
evaporative cooling ... which sounds like what is being attempted
with the rings of wet sand and gravel + fan, but in a seemingly
curious (to a Kanatan) fashion.
=== * ===
Kanata, Ontario, Canada
< A r c h i L o g i c at chaffY a h o o dot c a >
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