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phase question

post #1 of 3
Thread Starter 
have built and ran a phase chiller in the past which performed very well for the crude attempt it was but now am looking to refine it a little and shrink the footprint. I am thinking of using a plate heat exchanger instead of a cooler like I did in the past. Also would like to have a fair amount of control over the system so I can go cold or keep it just under ambient if I choose.

so the questions

1. what size plate exchanger would be sufficient? my thought is a 10 plate 3x8 or 3x12. havent dealt with these on this scale before.

would adding a second compressor and exchanger be worth it? I have a 12000 btu a/c unit waiting to donate some parts as well as my last chiller system that performed well. kept my decent oc'ed 1366 running at 0c at full load. not spectacular but worked great for what I wanted.

thinking doing the following. normally would run off the smaller compressor and keep the cpu decently chilled but not extreme. This system will have 24/7 operation at times. So condensation buildup is a concern. I found out the hard way that despite spending a lot of time and effort insulating that letting it run 24/7 was not good at low temps. got away with just one less memory slot thankfully.

Then the larger compressor to come in and really bring the low temps when desired for a bench session or similar.
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post #2 of 3
Start with the smaller compressor. Plate HX go as big as you can afford and match a TXV to your load and temps.
If you can afford a 12x3 or 12x5 go for it.
Running two compressors in parallel wont work though. Each compressor would need it's own condenser and plate hx.
post #3 of 3
Thread Starter 
Thanks for the input NoL on the size of the plate. Think I will go for the bigger one then.

Sorry if that wasn't clear in my first post. Yes would indeed have two completely isolated a/c units with separate hx plates and condensors. Only the coolant would be passing through both plates. Thinking small compressor then to larger compressor then to processor block. That way the larger compressor could be tuned for the cooler incoming coolant vs the other way around as the small compressor would be the normal everyday cooling solution.

Time to start tinkering again. Will need to start a build thread sometime for this project.
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4820k EVGA Classified x79 EVGA gtx 980ti SC  EVGA gtx 980ti Classified 
RAMHard DriveCoolingOS
GSkill ripjaws 32 gb samsung 840  custom phase chiller win 10 pro 
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4 of them 3 in surround +1 zboard hawaiian punch rack logitech g502 proteus 
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GSkill ripjaws 32 gb samsung 840  custom phase chiller win 10 pro 
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4 of them 3 in surround +1 zboard hawaiian punch rack logitech g502 proteus 
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