Soldato
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n00b question 
What is phase cooling?
- Thread starter Megahurtz400
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Is it not in the "Advanced Guide to Overclocking & Cooling" sticky?
Soldato
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Its where you get a mini fridge and put your pc in it to make it like -500 degrees! (Or possibly not)
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Phase stands for phase change. It is the form of cooling that uses gass compression to make electronic components cold. Refridgerators use the same technology.
It is possible to cool processors to -50C or thereabouts with phase change coolers.
Once any electronic component is cooled below the ambient temperature insulation is needed to stop condensation short-circuiting components.
With very cold temperatures it is possible to get higher overclocks.
It is possible to cool processors to -50C or thereabouts with phase change coolers.
Once any electronic component is cooled below the ambient temperature insulation is needed to stop condensation short-circuiting components.
With very cold temperatures it is possible to get higher overclocks.
Soldato
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Chris Beard said:
And it heats your room up.
messiah khan said:And it heats your room up.
certainly does!
HIJACK!
Messiah, I need to talk to you. I am thinking of building a shroud for the back of the drive bays on my v2000 + mounting 2x 120mm fans and a res on there. I know you were planning something similar at one stage - do you have drawings etc.? What thickness alu were you going to use?
phase cooling works on the same principles as a fridge. it compresses a refrigerant (freon is commonly used, i used propane) in a liquid form and then drops the pressure as it hits the evap block, this causes the gas to evap removing huge amounts of heat. the refrigerant is then passsed through a condensor to remove the heat and change the gas back to a liquid (liquid and gas are the 2 phases that change, hence the name). the temperatures you achieve depend on the compressor strength (hp) and the refrigerant used (propane does -42'c @ 1bar of pressure). you can get lower temps by creating an auto cascade running two refrigerants together to utilise their evaporation temps or build a cascade (creating a second phase loop to cool the first) 
MW
MW
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ArchAnGeL said:
Yeah, i made mine, but its still not finished. I have to modify it quite a bit as I made the tolerances so tight, that it was impossible to work with. Add me to msn(details in trust) and i'll send you the blueprints when I get home from work. Quite a few other people have used my blueprints now, including Welshtom for a client and have done some variations to it to fit their needs. I think the Alu I used was 1.5mm thick. 2mm might work, but it will be harder to bend at 90 degrees unless you have a metal brake. Where is the res? Is it the one at the back of the case, or are you mounting it on the back of the shroud? Because I think you might be pushed for space mounting the rad on there. You need a certain amount of space for cater for the cables from hardrives etc, then space for the fans. This leaves not too much space between the shroud and the edge of the motherboard.
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Has anyone got any internal pics of their cases with phase cooling?
I understand its quite expensive to do.
Mark
I understand its quite expensive to do.
Mark
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Markatomic said:
http://forums.overclockers.co.uk/showthread.php?t=17700725&highlight=frosty
http://forums.overclockers.co.uk/showthread.php?t=17681715&highlight=project+mega
Edit; And yes its expensive to do.
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Wow that looks pretty cool, what temps are you acheiveing?
mark
mark
Soldato
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Markatomic said:
Normally sits around -42ish.
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Thats incredible really, I think once I have paid off my latest rig I will invest some money in it.
mark
mark
Freon is just a brand name, i think of DuPont and covers many different refrigerants and not others
Compressor HP is fairly irrelevant, absoloute system compressor performance depends on the volume of suction gas moved per second (m^3/s) which at a fixed speed (+~-) is mainly governed by compressor displacement.
//Are you the same Mr White who was on the old phase-change.com forums many years ago?
messiah khan said:
This is an old picture but hopefully it will illustrate what I plan to do
looking at it now I see what you mean about the res. i was planning on putting a EK res on the back of the shroud under the fill port but that proably won't work unless I move the fill port. Or perhaps I can take the fan out of the front of the 4-in-3 drive bay and push it forward a bit.
The dirve wires are always going to look a bit messy so if I can shroud of the back of that with the alu so that the t-line is hidden by the shround (I could probably fit a microres behing there but the Ek was only really going to be for show). i was then going to add a chipset block, spray the rad silver and have all the water tubing that is on show, wrapped in a stainless steel braid to give a rigid industrial look.
I'll add you to msn
