Freon cooling help

DoGMaN · 02-23-2002, 04:32 PM

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

Brad · 02-23-2002, 06:45 PM

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

DoGMaN · 02-24-2002, 07:38 AM

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

superart · 03-14-2002, 02:06 PM

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

decodeddiesel · 03-14-2002, 03:48 PM

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

superart · 03-15-2002, 10:50 AM

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

02-23-2002, 04:32 PM	#1
DoGMaN Cooling Neophyte Join Date: Feb 2002 Location: Honeymoon Capital of the world Posts: 16	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

02-23-2002, 06:45 PM	#2
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	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 __________________ 2x P3 1100's at 1400, Abit VP6, 2x Corsair 256mb PC150 sticks, 20gb 'cuda ATA-III, 2x 40gb 'cuda ATA-IV in raid 0. 20" Trinitron. No fans 2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water

03-14-2002, 02:06 PM	#4
superart Cooling Savant Join Date: Mar 2002 Location: FL Posts: 787	dogman, this site may help you. this guy has a lot of info on phase change cooling. http://www.wizard.com/~scfoster/freoncool.html __________________ When you do things right, people won't be sure youv'e done anything at all. Looking to buy/trade for used Deep Fryer and Vacume Pack Sealer.

03-14-2002, 03:48 PM	#5
decodeddiesel Cooling Savant Join Date: Oct 2001 Location: classified Posts: 534	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 __________________ ...i hurt... do me a favor, disconect me... they can re-work me but i'll never be top of the line again ...i'd rather be nothing...

03-15-2002, 10:50 AM	#6
superart Cooling Savant Join Date: Mar 2002 Location: FL Posts: 787	eavryone keeps talking about getting HVAC cert. where can you get it? What is it? like certification for refrigeration and A/C? __________________ When you do things right, people won't be sure youv'e done anything at all. Looking to buy/trade for used Deep Fryer and Vacume Pack Sealer.

02-24-2002, 07:38 AM	#3
DoGMaN Cooling Neophyte Join Date: Feb 2002 Location: Honeymoon Capital of the world Posts: 16	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

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