Well.. as an expirenced phase changer. heh. I'm here to stomp on all of your ideas!! MUWAHAH!!
It will work.
Put the evaporator of the phase change system inside of the case.. or build an air channel in the case.
Basically with an air channel, You would cut a hole in the case and have aluminum vent tubing and a fan carry the air inside the case out to the evaporator box.. then blow the air across the evaporator and then back into the case. All moisture in the case will build up on the evaporator. Just take the damn thermostat off of the compressor so it doesn't shut off when it's not supposed to.. or put the thermostat to full power..
Either way you do it.. you have to have the humidity in the case go over the evaporator.. this way it will just freeze up on it..
For the side of the case.. make it an acrylic window.. that way you can see in.. use silicon sealant to seal everything up . you can keep your CD-roms and all in.. just use the silicon sealent.. take the front bezel of your case off and insulate the whole front.. using Rubatex insulation tape from home depot.. do this to ALL of the metal parts of your case along with any vent tubing you use if you decide to use the air channel I talked about. Once all of the metal in the case that contacts the outside is insulated (not like the hard drive bay.. doesn't need to be insulated.. )
You are ready to roll.. just make sure there are no spots for air to get in.. or large quanitities.. you won't be able to make the thing so air tight that you could put it in a vacuum.. but if you COULD make it so air tight that you could even vacuum it.. well sh!t.. u'd have one hella system. I was going to do this myself but since I am using the evaporator as a water chiller.. I wouldn't of had enough power left to cool my machine as well. Since you are just using the evaporator to cool air.. it will work fine.
I'd suggest that you just build your own phase change system. Get a mini frige and yank the compressor and cap tube.. and you are half way done.
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