Re: Home-brew evaporative cooling
- From: not_real@xxxxxxx (Beachcomber)
- Date: Wed, 20 Jul 2005 17:42:08 GMT
On Tue, 19 Jul 2005 23:10:17 -0400, Choreboy
<choreboyREMOVE@xxxxxxxxxxxx> wrote:
>DT wrote:
>>
>> Another thread got me wondering about this. As a kid I spent lots of time in the Mojave desert.
>> One old guy there had something rigged up like a large tarp or maybe sheet of plastic; and a
>> drilled copper pipe ran along the top. The tarp angled up steeply from the ground, near-vertical
>> like a section of a tent. Water dripped from the pipe along the tarp, and somehow this
>> contraption made the shaded area beneath the tarp far cooler than just shade alone.
>>
>> Anybody built anything like that? I'd love to see pictures & ideas.
>
>The evaporator will be cooler if it's in the shade and not absorbing
>solar heat. I think it would work best with two cloths. One would
>provide shade, and it should reflect as much solar heat as possible.
>
>http://www.srh.noaa.gov/elp/psych/psych.html
>
>That page has tables showing how much cooler the wet cloth can be,
>depending on the ambient temperature and humidity.
In principal, evaporative cooling can provide thousands of BTU's of
efficient cooling. Commerical AC chillers using water as the cooling
medium are built to take advantage of this.
Perhaps you might want to look into the huge blowers with water
spraying into them, like they use during football games.
Making it portable can be a problem though. Water is heavy and must
either be hauled or pumped from a supply.
Beachcomber
.
- Prev by Date: Re: *How To Protect You Family From A Terrorist Attack!*
- Next by Date: Re: *How To Protect You Family From A Terrorist Attack!*
- Previous by thread: Re: Home-brew evaporative cooling
- Next by thread: Re: Summer survival
- Index(es):
Relevant Pages
|
