Originally Posted by Ironduke
If you have a smattering of mechanical skill or just a laymans abilities, no doubt you'll be able to cobble it all together in the physical world.The big issue remains, how to control of a system that you want to use in every day application?
You may have noticed that the aircon industry changed the way it was controlling their phase change systems some years back. Instead of a simple temperature opperated switches, they all went to D/C inverter systems. Basically a method of controlling compressor speeds to match the set point or the requirerd outcome. Without this, your always going to freeze up. Thats just a fact of poor control. However, where this becomes critical is in the thermal boundry layers surrounding your CPU. It dose not matter if you freeze your CPU down to as close to absolute zero as it is possible to go, you'll alway run into the thermal boundary layer problem. This mean masses of condesation and you'll be fiddling around with masses of insulation, padding, even bathroom sealant products. Anything! because its all soaking wet.
As you'll be aware, the professional system that is made to control this series of issues is already available and fully researched by some dam clever people. Its a micro system and controlled based on the D/C inversion principle, therefore, the compressor never stops running, rather its output is controlled as a function of keeping the CPU within temperature boundaries. +30 to +50 deg C. This more than alows the the CPU to be overclocked, to some extremes I might add, but always controlled to prevent the very serious condensation issues that we would all reach in a home or office.
To go minus deg C in any human environment makes no sence. Unless you are doing some pretty serious testing for the sake of testing, whats the point outside of that?
My experience is that if you can get your hands on a nice clean D/C inverter controlled A/C unit, you'll have the basis for a top system. You had best be an engineer however as you'll need to work out and test whether the system can be controlled sufficiently enough to extract the variable heat generation of your CPU etc etc
Failure means your motherboard is going to get wet - very wet!!!
Best of luck, post it if you get there.
I really can't tell if this is spam or not.
<-- engineering student =]
I've got the spring set of bendys, and what I will prob do is use a flexible line in conjunction with an elbow fitting or somthing a few inches away from the evap head.
One thing I am wondering about is the control, as mentioned above, is from a fridge and of course it's a dial with 1-9 on it... not too sure what that means in terms of my application tbh.
Another thing I am thinking about is the power, do I need to wire up a special psu or something for this or use the existing wall plug?
Fedex changed my delivery date, the manifold was supposed to be here yesterday >_<
I finally found the rods at Grainger shurik, it seems Lowes here quit carrying them about a year ago (the employee I spoke with is married to a welder, she said she bought like $400 of those lenox rods for 50 bucks and paid 40 for his welder machine :O...gotta love clearance)Edited by underdog1425 - 3/24/10 at 6:38am