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My phase change project

post #1 of 17
Thread Starter 
Hi. although im new to these forums, ive been overclocking for a while now, and i built my own watercooling system that is working well (29 idle, 38 load even though it is not 'professionally' made) and i want to upgrade.

I am using this tutorial to buld my own phase change cooler---literally from scratch, more from scratch than my watercooling eve. i want to know if any one with a lot of experience can help me out as i understand the science flawlessly--but the machanics of it are kinda hard. i want to know if this tutorial is good, any suggestions, and i need a junkyeard like place w/ cheap 1/4-1/6 HP compressors as i have every thing else built (condensor/evaporator, r134a refrigerant, reservoir, tubing, etc.)
EDIT: never mind i cant find the tutorial......it was from overclocking.com or something like that
uhhhhh.......can someone a nice tutorial
    
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post #2 of 17
Thread Starter 
also HOW MUCH r134a do i need? how many 12oz cans should i buy?
    
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post #3 of 17
I used propane and a normal gas grill propane bottle, its cheaper and its about the same temps.
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post #4 of 17
lol and explosive!
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post #5 of 17
Nah, i did a test with it and it doesnt explode just creates a stream of fire
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post #6 of 17
Thread Starter 
sorry i know that people are using it as a cooler but have you actually compared the two because HFC's Hydroflurocarbons (like R134a refrigerant) are much better at absorbing heat because they have a much higher specific heat than regular Hydrocarbons (like propane). also r134a is used for cars and AC as well as refrigerators...so i think its better. but yeah, if i can't afford it, ill go to propane
    
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post #7 of 17
Thread Starter 
wow i take it back...didnt see your mod.....
-46C
how much did u spend on compressor, condensor, and evaporator? cause mine from junkyard look like crap but works
    
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post #8 of 17
Quote:
Originally Posted by amd_hardsoftware
wow i take it back...didnt see your mod.....
-46C
how much did u spend on compressor, condensor, and evaporator? cause mine from junkyard look like crap but works
How exactly could you possibly establish that your compressor works?.
I mean... Isn't it impossible without attaching it to a working phase change loop?. Otherwise it wouldn't generate work(generate liquid out of gas).
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post #9 of 17
How can you use propane? Doesnt it have to be a refridgerant?
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post #10 of 17
Quote:
Originally Posted by bigval
How can you use propane? Doesnt it have to be a refridgerant?
No, propane is a hydrocarbon and it shares the same characteristics as the commercial refrigerants. It condenses and evaporates at the same ballpark temperatures, so it is suitable for use in a phase change system. The cons include its volatility and that it is not as efficient as the commercial gasses.
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