19mm (3/4 Inch) Cooper Pipe For Immersion Chiller
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DJR
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Mine is about 10m of 1/2" and does 20-25L batches fine, 8m of 3/4" will be fine i'm sure.
Bend it round a keg or handy pail, pretty easy if you go slowly although if it is thin wall copper filling it with sand can help it collapsing/pinching
Bend it round a keg or handy pail, pretty easy if you go slowly although if it is thin wall copper filling it with sand can help it collapsing/pinching
kelbygreen
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I got 15m of 1/2" and it cools about 46lts of wort to 22 deg in 30 mins and 25lts in about 15 mins 
I think it should be fine may be a bit slow for double batches. you prob wont need the flow rate to high on that. Just adjust it to suit. Only problem I have with a immersion is the waste of water but I water my hops with it and what ever else needs doing. Was thinking of getting 2 big containers and just pump from one to the other.
I think it should be fine may be a bit slow for double batches. you prob wont need the flow rate to high on that. Just adjust it to suit. Only problem I have with a immersion is the waste of water but I water my hops with it and what ever else needs doing. Was thinking of getting 2 big containers and just pump from one to the other.
Andyd
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Biggest hassle with 3/4" is that the surface area to volume of coolant ratio is not ideal - you'll have a whole lot of water in there that's not playing as active a part in the colling as would otherwise be the case.
I know it seems counter intuitive, but smaller diameter is better for heat transfer.
Andy
... but then again free is free
I know it seems counter intuitive, but smaller diameter is better for heat transfer.
Andy
... but then again free is free
yardy
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2much2spend
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this is mine its 3/8 or 10 mm. i would prob stick with smaller diamater
or it will waste a lot more water. go for smaller dia and more meters of it
i think it about contact time rater than volume? <_<
or it will waste a lot more water. go for smaller dia and more meters of it
i think it about contact time rater than volume? <_<
pk.sax
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S'pose if u had the means to flatten the pipe, the whole volume/contact area issue would be fixed. Turning it into an inefficient shape for flow, building resistance and allowing better heat exchange.
How you go about flattening and coiling flattened pipe is none of my concerns. I cube
How you go about flattening and coiling flattened pipe is none of my concerns. I cube
Thanks for the responses guys. I know it would be inefficient but it was free and I don't have any other use. If I end up have to go smaller I guess I can just use it as a pre chiller or sell it for scrap. Water is not a concern since I have a pool.
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