Will a modified chiller do the job?

A while ago I made a DIY cooling setup to do some tests for a Poof of Concept, and I'm now looking to replace the current POC and its DIY jankyness setup. I have seen a couple of products I hope would work like: - S&A CW520 - https://www.teyuchiller.com/recirculating-compressor-water-chillers-cw-5200_p8.html -Ss brewtech glycol chiller 1/5HP -https://www.ssbrewtech.com/products/glycol-chiller-1-5hp Altho I don't know if this would work, the idea is to bypass the thermostat that comes with it and and use my own thermostat that will cycle the compressor. Hopefully this would also allow me to chill my cooling liquid (50% Ethylene Glycol to 50% water) up to a max of -35C°C (-25°C for the majority of my work). In general I'm curious how cold the heat exchanger coils / heat plate would get in such systems, but I guess that is depended on the gas used and the PSI of the compressor? If this idea is not feasable with some modifications on out of the box solutions, I'm also willing to go fully custom but I don't know if that is feasable with a budget of say 1250 Euro's (materials, gas, labour costs)? Curious towards your proffesional thoughts, what do you think? - Will a modded watterchiller be up for the task? - Or what solution would you like to propose? Below I have attached a summery of my current setup to give more context to what I have already achieved. The setup below consists of 4 TEC 12715 Peltiers that draw quite some power 4 x 180W = 720W (with all other equipment attached to it probably its more towards the 1000W when messured from the power outlet) Image showing the janky DIY setup. ​ CPU block + 2 fans CPU block + 2 fans peltier peltier -> in -> Pump + resevour Tubing Waterblock tubing waterblock -> out -> peltier peltier CPU block + 2 fans CPU block + 2 fans "schematically" the setup as seen above.This is then connected to the "cooling chamber" where the cooling needs to take place. The chamber that you see below will be updated in the future. For now it consists out of 2 simple waterblocks of 40x80mm that are also connected in series that are placed into a 3D printed housing. I expect that this in will need some aditional insulation and prefferably a custom cooling block to gain more efficientcy. \"cooling chamber\" -> in -> Cooling block 1 Tubing cooling block 2 -> out -> (back to pump) "schematically" the setup as seen above. On days the temperatures where low at my workspace this worked for some time, untill the heat that was produced heated up the room enough where the CPU fans could not disipate the heat of the peltiers. Resulting in the cooling liquid not reaching -25°C anymore. Once this effect started to occur it would creap up and at some point the system would basicly "stop working" since the cooling liquid would be way to hot up to 0 to 10°C. Meaning the hot side of the Peltiers where TΔ 68°C - 78°C. Important woud be the load on the system to be able to caclulate wat cooling solution could be suffitient. -Cooling chamber size: 15cm x 9cm x 2,5cm and is mostly filled as you can see in the image with the cooling blocks where the cooling liquid passes trough. -The tubing is about 1,5 meters on the in and out take and are insulated for its majourity with foam. submitted by /u/Micrographstories [link] [comments]