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  1. Has this product even been made available yet? They were targeting a "late july" release... would like to buy it...
  2. Interesting, didn't realize the delta T across components was so small, even with less than 1 degree the theory behind a FPSC will still work. You'll be decreasing the inlet temperature into the cpu by a tiny amount which will then increase heat transfer rate. Probably not significant tbh, but would be an interesting experiment.
  3. The CPU and radiator are both elements of a watercooling loop which create ΔT. The radiator decreases and the cpu cooler increases water temperature. This must be the case in order to transfer heat. The FPSC in this case is a third ΔT creating element, one which also decreases temp. I understand that it isn't a new loop idea or anything and stated as such in my original post, saying that it is similar to a chiller loop. As for how efficient it is? Not sure, IIRC efficiency of the stirling cooler increases when hot and cold end temperatures converge. Most studies i've seen
  4. Wouldn't there be no heat transfer without delta T across heat source and radiator?
  5. Note the direction of flow arrows. Hot Liquid from heat source first travels to radiator in order to cool to near ambient levels. Then it is run through the cooler which brings it down to sub ambient levels. Placement of the reservoir and pump could just as easily be after the radiator.
  6. Honestly no idea, but way less cooling potential than LN2 and any gas refrigeration type cooling. This could be a daily driver type thing though. In a tier list it would be LN2>Waterchiller>FPSC+Liquid cooling loop>Liquid cooling loop. Another option would be to place the FPSC directly on the CPU die, but this increases risk. More something you add to a liquid cooling loop to drop 5-10C below ambient. I never got far enough to test the effectiveness of the idea.
  7. shoutingsteve is correct. Galliums specific heat is only 0.37 J/g K, water is 4.19 J/g K. Using gallium will result in higher fluid temps for the same volume of liquid as water. In order to produce the same results as water cooling, you would need more volume of gallium, larger radiator and more flow. Ammonia has higher specific heat, but would be much more expensive than just building a larger watercooling setup. If you want to change working fluid you could explore a compressible gas and turn your water cooling loop into a refrigeration loop. Replace cool air with CPU/GPU block
  8. You would probably want to insulate your CPU/GPU waterblock so that heat isn't transferred to the oil. If you do this, there is very little chance the oil will cool much. If you want to cool the oil too, mineral oil has a freezing temp of -4C. This can be lowered further by circulation. A small pump moving the oil around would probably be enough to prevent any freezing and would act as extra cooling for your MOBO.
  9. A couple years ago my team and I were working on a proposal for our final year engineering project. We were heavily considering a novel (we think/thought) method of sub ambient water cooling, similar to using a chiller. Instead of a water chiller or TEC (garbage efficiency), we were considering a free piston stirling cooler (FPSC from now on). Most engineers are familiar with the stirling cycle, usually input of heat (fuel being burnt for instance) and outputting mechanical work (torque @ RPM). However, if you invert the cycle and INPUT work, then this creates a temperature differential which