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Post by SundeWCitY on Apr 25, 2011 1:41:18 GMT
Hey everyone just looking for some tips for those of you with experience. I have a highland terrarium with a hygro/thermostat currently i have a high powered petier system built in for cooling.
The cooling system works awesome at night down to 13 Deg C most nights, but it is crap in the day - it cannot compete with the heat from the lights. and due to extra insulation the heat is held as well.
I am looking into setting up a new cooling system utilizing a motorcycle radiator, deep freeze, and a water pump.
I had the whole system up and running last year but it never worked that well due to the lines freezing, but after using more anti freeze it was fine. I know in my head the system will work just fine, the big problem was getting the air bubble out of the lines when filling them. Does anyone have any suggestions to prevent this? I tried having 2 valves one to fill and the other to pull the air out, but i never suceeded. I want to give it a go again, does anyone have suggestions on what size diameter tubing i should use?
The plan is to have a bucket with copper coil inside, with water and frozen solid. then the tubes leave the freezer, and head to a powerhead pump, then to the radiator in the terrarium. the tubes are 100% insulated outside, and the tank allready is insulated in the lid and sides.
anyone have any tips ?
thanks!
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Post by brewcat on Dec 8, 2011 7:49:27 GMT
Actually having the bucket water frozen will likely inhibit the effectiveness. The water immediately contacting the coil will melt, but the frozen water around it will prevent the heat from being removed by convection. Much more efficient to have the water right at freezing and then have a very small agitator (pump, stirrer, etc) in the reservoir. It seems counterintuitive, but I do a lot of cooling using copper coils in my brewery (both immersion and counterflow).
Seems if you're going to all that effort, why not make a ducted route and return to a small chest freezer full of frozen (soda bottles, milk jugs, etc)?
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