absorption air conditioning [RE-wrenches]

[Todd Cory, Bald Mtn. Solar]

Our local hospital uses their cold well water pumped through fan coils for air
cooling. Many other local homes and businesses are also cooled this way... of
course it helps to have 45 degree well water. Most applications either
discharge the "waste" water back into the well, or on to irrigation systems.

Todd

Ray Walters wrote:

> I provided power for a similar system using the Servel/ Rohbur unit. In our
> case it ran to a forced air system which decreased its effeciency  from the
> Home Power article with passive cooling valences. Our 3 ton unit pulled
> almost 2200 watts AC. Thats the blower in the house,the cooling fan in the
> unit, the circulator pump and assorted controls and their transformers. It
> didn't operate properly on a SW5548 either until I added a 50 microfarad
> cap to the inverter output. I can't reccommend them for offgrid at this
> time. Maybe somebody could convert most of that previously  mentioned crap
> to high effeciency DC?    WINDY?
>  Ground source heat pumps are possible, but they require 220 vac with equal
> power draw, just no propane bill. Drilling all the wells though is gonna
> cost plenty. Cooling offgrid demands a holistic approach: Go underground,
> Insulate, Reduce (ahh!) Solar gain, promote natural ventilation, use
> ceiling fans, evaparative coolers, then use a small 1.5 ton unit with high
> SEER rating to bring you closer to the comfort zone. It takes ACTIVE
> participation on the consumer's part, Lots of cash, and a willingness to
> sweat a little.
>
> Ray Walters

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