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Old 02-09-12, 05:02 PM   #13
Solar Mike
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Join Date: Apr 2010
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Quote:
Originally Posted by AC_Hacker View Post
All very interesting.

So what technique are you using to create a vacuum in the tube prior to introducing your refrigerant?

I tried to make a heat tube using R134a, which is similar to R22. I didn't have much luck.

-AC_Hacker
I have a standard vacuum pump goes down < 50 microns, standard multi way connection hub and hoses etc and a digital gauge so you can measure it with any accuracy.

As the amount of liquid gas in the tube is small, say 100cc in a 10m pipe you need to construct a small charge tank that can be filled from the main bottle of refrigerant. Once evacuated, the contents of the charge tank fills the heat pipe.

Ideally the gas should be a single component, not a mixture of gasses.

Cheers
Mike
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