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A mini fridge CAN cool a PC - Page 6

post #51 of 55
Refrigeration components are actually produced by brazing, not by welding, and the person doesn't have to be a professional. The trouble is making sure that the system is sturdy enough, and making sure that it is leak and pressure tested properly.

As a simple analogy, if you blow up a balloon too much, it pops, because it can't handle the pressure. If you stick a pin in it, it bursts, because it cannot handle the impact.

Even if you are learning, you are wrong. For example, in a car refrigeration unit, the PSI of r410a is 57psi low pressure and 245psi high pressure. On the other hand, air has a PSI of 14.69, a huge drop. The pressure of your refrigerant will be over 10 times as high as the air around it, so you will need a very strong piece of metal. Solid copper is usually used for the high pressure parts, whilst tubing can be used for the lower pressure areas. When purging and leak testing, I believe propane is used, which is highly flammable.

If your home welded structure cannot support the high pressure, it will likely explode during leak testing.

To counter your final point, if you rely on your own brain rather than the brains of others, you will likely end up with a piece of metal stuck in your brain, and you won't be around to collect your darwin award.
If you don't want to take heed of valuable advice, then this is likely not the place for you, because all the discussion/topics/efforts presented here would be worthless.

If you are making your first ever phase change system, it is safer and easier to buy parts and braize them together, instead of just trying to botch one together with plumbing materials.

Phase change is NOT the same as water cooling with a different pump.
Edited by Cepheus - 12/10/09 at 9:28am
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post #52 of 55
how do you clean off the vegetable oil when you're done with the experiment?
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post #53 of 55
Quote:
Originally Posted by PeaceMaker View Post
how do you clean off the vegetable oil when you're done with the experiment?
National pride?

That's a good question, I guess if you don't do it to begin with you don't have to worrie about it, LOL

And be careful what you buy on Ebay
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post #54 of 55
Quote:
Originally Posted by Cepheus View Post
To counter your final point, if you rely on your own brain rather than the brains of others, you will likely end up with a piece of metal stuck in your brain, and you won't be around to collect your darwin award.
If you don't want to take heed of valuable advice, then this is likely not the place for you, because all the discussion/topics/efforts presented here would be worthless.
I gotta keep an eye on the Darwin Awards now for that
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post #55 of 55
Quote:
Originally Posted by graphicsman View Post
that poor mini fridge would have made a great kegerator
You are sooooooo right. I decided to sacrifice my mini fridge just to prove a point. See my thread "A Cooling Experiment" for all of the details.

I told myself I wasn't going to get into this.... A lot of people say that the compressors mini fridges use do not have enough horsepower to cool a PC..... Mine is a 1/12th HP unit and provides about 135W of cooling capability when using it as a chiller. This was more than enough to cool my 95W Q9550 CPU. I would let the water temp get to about 10C then turn off the compressor to let the temp come back up to around 15C. This way I didn't have to worry about condensation.

So I believe most mini fridges, properly modified, can cool PC components. Don't be stupid and try to put your whole computer inside one...
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