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How can a make my own low cost after cooler?

by hue
(rpch min)

Hello Hue:

Nice to hear from you.

The lowest cost aftercooler is to have the compressor tank located as far from the compressor as possible. As the compressed air flows from the compressor over the longer pipe to the tank, natural cooling takes place.

Or, plumb the line from the compressor through a water bath. Of course, you'll need a water trap where the line exits the bath as their will be a lot of water coming along with the air.

You may need to run water through the batch continuously, as the flow of compressed air through the pipe will tend to warm the water very quickly, and warm water won't be effective in cooling the compressed air to force condensation of the water vapor load.

Cheers,

Bill

Comments for
How can a make my own low cost after cooler?

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Nov 08, 2009
AC instead of 'fridge
by: MEP1

Rather than a dorm room refrigerator, you'd be better off using a small window AC unit mounted in a hole in a box with a coil of copper tube inside. A small refrigerator doesn't have the cooling power or the internal airflow to cool well, but the high volume of cool air produced by even a small AC unit would be more effective. It would also be more able to withstand the long run times needed.

Nov 07, 2009
Not sure if this would work, but...
by: Anonymous

I have thought about using one of those dorm-room beer refrigerators to do this. Put a coil of soft copper pipe inside the refrigerator so that the air can spend more time in the cold. I am not sure what that extra travel distance would do to the CFM. You might need to provide several coils in parallel to compensate.

I have not tried it, but it might be worth a try.
_________________

Bill comments... actually, that would emulate what is provided with a refrigerant compressed air drier. It's essentially a coil inside a fridge!

Good thought.

B.

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