Quote:
Originally Posted by pgfpro
Took this week off from my day job and got some much-needed personal need to do finished.
Got a question for y'all. Anyone knows of a cost-effective AC self-contained unit that doesn't need a crank driven pump?
Thanks in advance.
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IF and only IF:
You live in a dry climate; evaporative cooling is hugely effective and takes zero energy from the engine.
(Extra weight excepted)
AI Overview
The temperature difference, or delta T, for an evaporative cooler in a dry climate can range from 15° to 40°F...
NB
That you need DRY (fresh) air, in which to do the evaporating.
ie: Dry fresh air into the evaporator, into the cabin and OUT of the cabin.
Any humid, water saturated air, recirculating through the cooler, results in a tropical jungle type atmosphere.
(Having been in such jungles in Zaire, Angola, etc I can assure you that you do NOT want that in your car!
)
NB The area where the cabin air is is drawn into the cabin (from the high pressure area where the car's hood and windscreen meet)
That intake area already contains drainage plumbing to let rain water out.
So this makes it an ideal place to put one or 2 of these:
NB that its only a "humidifier" if the room is closed...
Edit:
Oops thats the big, multi piezo brick, not one or 2. These:
There's no better large surface area than that mist IMHO and IIRC the piezoelectric bit is very efficient.
I cant speak for the included transformer or anything similar designed to run one off of 12V DC.
All that would be required is a bowl of some sort to hold 1 or 2 of those and an auto top up system consisting of a water level switch, reservoir and pump.
The window washer system might be co opted to act as such with a little bypass switch/valve for when you actually want to wash the window.
I do know that kits were available for sale here some years ago so they are available, but does one need a kit for something this simple?