SolCool scam or not? [RE-wrenches]

[Roy Butler, Four Winds RE]

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Windy,

I get their flyers and sales calls all the time...here in the desert 
region of NY State!

Will you be at MREF this year? Hope to see you and a bunch of other 
Wrench heads there...

Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind installer 
Four Winds Renewable Energy, LLC
8902 Route 46
Arkport, NY 14807
607-324-9747
www.four-winds-energy.com



Windy Dankoff wrote:

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> I've lived with and otherwise observed a variety of PV-powered 
> evaporative (swamp) coolers here in the Santa Fe region. They work 
> fine whenever the humidity is low, and are only a nuisance when it's 
> high, because the only thing they accomplish is to further humidify 
> the air. Every promotion I've every seen from respectable evap cooler 
> makers states that it is only applicable in dry climates. I received a 
> call from SolCool a few years ago. The fellow was straight up about it 
> being an evaporative pre-cooler. When I saw that their web site made 
> no mention of the fundamental limitation, I lost respect. I'm amazed 
> if they are promoting any such thing outside of the arid west. Nobody 
> else does.
>
> Windy
>
>
>> From: "Joel Davidson" <joeldavidson at earthlink.net>
>>
>> In the 1980s Wm. Lamb Company made a PV powered swamp cooler that was
>> attached in front of the condenser of a conventional air conditioner. 
>> The
>> cooler uses a 24 VDC Pitman motor direct powered by 2 each Arco 30- watt
>> 30-cell modules and also required water plumbed to it. Within 2 
>> years, scale
>> built up in the cooler and the painted sheet metal body rusted. The
>> additional moisture on the air conditioner caused it to rust. The 
>> principle
>> underlying direct evaporative (adiabatic saturation) cooling is the
>> conversion of sensible to latent heat. Nonsaturated (low humidity) 
>> air is
>> cooled by exposure to free and colder water, both thermally isolated 
>> from
>> the other influences. Swamp coolers will work in Athens Greece, not 
>> Athens
>> Georgia.
>>
>> The Second Edition of Evaporative Air Conditioning Handbook by Dr. 
>> John R.
>> Watt P.E. copyright 1986 had 450 pages of more than I ever wanted to 
>> know
>> about the subject.
>>
>> Do any wrenches or your customers use a swamp cooler?
>>
>> Joel Davidson
>
>
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