CO2 Cooling Project

jmke · 16th September 2003, 19:28

:grin:

jmke · 16th September 2003, 19:29

jmke · 16th September 2003, 19:29

jmke · 16th September 2003, 19:29

jmke · 16th September 2003, 19:29

jmke · 16th September 2003, 19:30

16th September 2003, 21:42

those crazy italians

RichBa5tard · 16th September 2003, 21:50

man, does his hobby rock or what?

20th September 2003, 16:24

Hi, I'm MrZzz and I'm PcTuner Staff member.

We use a tank filled of liquid CO2: to obtain liquid C02 at normal temperature, you have to put CO2 under big pressure (about 80 ATM). When you open the valve on the top of the tank, CO2 passes from 80ATM to normal atmosferical pressure. Because of this sudden change of pressure, C02 starts to pass from liquid to solid state. It's real important to use tank with bottom draught: we need liquid CO2 at the beginning, not gas.
We connect to the bottle a copper pipe. To connect copper pipe to heatsink, we use a small silicon pipe. This is a kind of safe valve: if the internal pressure of the block will rise too high, silicon pipe will inflate and detach.

We have CO2 in our copper pipe: this is basically on the way to become carbonic snow. If you prefere, you can call it dry ice. The internal camera of our block

starts to be filled with dry ice. CO2 begin to expand and vaporize, passing from solid to gas state. This is a real interesting process for cooling purpose: the bottom of the block could reach -78C (measured in our preliminary tests).

Take a look at this photo:

This is a test without the insulation. C02 entrance is on the left, the other plastic pipe on the right is only an exhaust pipe.

The entire block is designed and produced in Italy.

By the way, our design team announced yesterday that CO2Block 2.0 is now starting to be designed. Last saturday experience was very important to REAL understand this kind of cooling.

I'm here for any question.

16th September 2003, 19:27	#1
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	CO2 Cooling Project PICS __________________

16th September 2003, 19:28	#2
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	:grin: __________________

16th September 2003, 19:29	#3
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	__________________

16th September 2003, 19:29	#4
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	__________________

16th September 2003, 19:29	#5
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	__________________

16th September 2003, 19:30	#7
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	__________________

16th September 2003, 21:42	#8
vegeta Posts: n/a	those crazy italians

16th September 2003, 21:50	#9
RichBa5tard [M] Reviewer/HWBot ***** Join Date: May 2002 Posts: 3,344	man, does his hobby rock or what? __________________ HTPC (mac osx): Mac Mini \| Core Duo 1.6Ghz \| 2GB DDR2 \| 26\" TFT Development (mac osx): Macbook \| Core 2 2.0Ghz \| 4GB DDR2 \| 250GB HD Games (win xp): E2160 @ 2.4Ghz \| HD3850 OC \| Asrock 4coredual-vsta \| 2GB DDR2

20th September 2003, 16:24	#10
MrZzz Posts: n/a	Hi, I'm MrZzz and I'm PcTuner Staff member. We use a tank filled of liquid CO2: to obtain liquid C02 at normal temperature, you have to put CO2 under big pressure (about 80 ATM). When you open the valve on the top of the tank, CO2 passes from 80ATM to normal atmosferical pressure. Because of this sudden change of pressure, C02 starts to pass from liquid to solid state. It's real important to use tank with bottom draught: we need liquid CO2 at the beginning, not gas. We connect to the bottle a copper pipe. To connect copper pipe to heatsink, we use a small silicon pipe. This is a kind of safe valve: if the internal pressure of the block will rise too high, silicon pipe will inflate and detach. We have CO2 in our copper pipe: this is basically on the way to become carbonic snow. If you prefere, you can call it dry ice. The internal camera of our block starts to be filled with dry ice. CO2 begin to expand and vaporize, passing from solid to gas state. This is a real interesting process for cooling purpose: the bottom of the block could reach -78C (measured in our preliminary tests). Take a look at this photo: This is a test without the insulation. C02 entrance is on the left, the other plastic pipe on the right is only an exhaust pipe. The entire block is designed and produced in Italy. By the way, our design team announced yesterday that CO2Block 2.0 is now starting to be designed. Last saturday experience was very important to REAL understand this kind of cooling. I'm here for any question.

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