Chiller connections?

[JLiu]

There are 2 solutions to your chilling problems that i'm able to come up with first is put all 10 tanks in a bath and chill the surrounding bath water the bath doesn't have to be very deep, or you can put a large container of water at the end of the ten tanks and run a super long tube with coiled sections of tubing in each tank so that your circulating only the large container of water but the heat transfer will happen with the coils of each of the 10 tanks.

[arh1]

Some of these ideas may be getting close to do-able. I'm thinking use the chiller to cool water in a sump. Second pump in the sump sends cool water through Y-connections to several Q tanks with heat exchangers, then back to sump. No water mixing. Main problem - what is the heat exchanger? Most are some non-corrosive metal like titanium. Not practical for me. Plastic is poorly conductive. Any ideas out there?

[allan]

Copper works real well... but I would REALLY stay away from that one. Due to the heat exchange (or lack of it) you will have to find something with really thin walls to maximize an already poor heat conductor. Keeping the water filled hose submerged for a significant amount of time to realize any cooling effect makes me think you will either have to significantly slow your flow or lengthen your hose... if you were to do plastic or rubber.

You know if you were to build a turf scubber styled water overflow system with a fan over the exposed running water you would accomplish two things. First would be a lot of evaporative heat loss, the second would be... well, evaporation. But then each would require it's own sump to pool the water before sending it back to the QT tank.

Just thinking out loud here...