Freon cooling help
 

Guys I'm looking for some info on sizes for and evaporator and condesor for a freon cooling system. There must be some way to calculate how big of a condensor/evaporator you need to balance out the system. Also I need to know where in the system the dryer goes. Is it right on the return line just before the compressor? I've come across lots of great info here on the forums on building freon cooled systems, but no one seems to have assembled one from just old parts. (except scfoster) Any help would be appreciated.

Thanks

DoGMaN

try to get a compressor that is rated at 1/5HP or bigger, and can run 24/7.

for an evaporator, just get one that is a resonable size, like 5" x 5", and use it to cool a body of water that is pumped to the cpu and back

I picked up a 1/4HP Tecumseh oil cooled unit. Its very srong and the guy said it should have no trouble running 24/7 as long as its well ventilated. I was thinking of using a 1/4" copper tubing wound into a 4" diameter coil, about 6" long (about 10' of straight tubing). Is this too much? I will be cooling between 2 and 5 liters of 66:33 water/methanol mixture. The pump flow rate is 230gph at one foot. Should I use a capiliary tube or would a "tx" valve better? (TX valve is sometimes known as a CPE valve keeps the pressure constant going into the evaporator.)

Thanks

DoGMaN

dogman, this site may help you. this guy has a lot of info on phase change cooling. http://www.wizard.com/~scfoster/freoncool.html

damn, that some interesting stuff. I would love to go to phase change as soemthing new but I'm a little leary about doing it without an HVAC cert. KA BOOOOOOOMMMMM

eavryone keeps talking about getting HVAC cert. where can you get it? What is it? like certification for refrigeration and A/C?