i have a small travel tralier approx. 6'x10'.  i would like to build a
swamp cooler(evaporative cooler) that can run on 12v.

i am looking for good DIY plans to build a small unit and or general
plans of how swamp coolers work.

thanks!

H blisstout,

Thank you for your question.

Self Sufficiency Plans and Pamphlets
http://www.kenneke.com/index.html

Evaporative Cooler Plans (Swamp Cooler)  7th from top of page

"These plans describe how to build swamp coolers ( evaporative coolers
) small enough to cool a single room and large enough to cool your
whole house. Coolers of this type reduce the average room temperature
to 66 degrees using 1/10 the electrical power of a conventional air
conditioner. The parts cost to build the large swamp cooler are $100
to $200. It is cheaper and easier to build your own swamp cooler which
works as well or better than a commercial unit, buying a new cooler is
should not be considered. $9.95, delivered via email."

Click on add to cart

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AdobeAir What is Evaporative Cooling
http://www.adobeair.com/info-what-is.html

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Swamp Cooler FAQs
http://www.air-n-water.com/faq_swamp.htm

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Keywords:
guide build 12v volt small evaporative evap swamp cooler plans
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Best regards,
tlspiegel

A bit of an aside, I realize, but did you know that the ancient
Egyptians also used evaporative coolers:

http://web-owls.com/2006/05/23/daily-life-ancient-egypt/

They even used them to make ice!


paf

Because right now, where I live it's 111 degrees F degrees in the
shade, the humidity is 2%, and the dewpoint is 15 degrees F - an evap
would work very well.  My neighbor has one running and the house is
quite pleasant.  I'm running the a/c at full speed.  :)

Here's one that runs on solar power.

http://www.voltscommissar.net/competitive_edge.htm

There is finally a do-it-yourself guide to servicing, repairing and
enhancing the performance of your evaporative "swamp" cooler yourself
and save lots of money.  The title of this great guide is Easy Cooler
Care.  Unfortunately it's not available in the hardware stores.  You
can get it at easycoolercare.com or amazon.com or it can be special
ordered from all the major bookstores.

I hope this info helps you save money.  Those guys that set up coolers
for the season charge way too much!!  It's just way too easy!  This
book shows you how easy.