[morticaixavier]

[...]

the third type is counter flow by the way.

Just to be an OCD engineer, a plate chiller is a type of counter flow chiller, at least the ones I know. The plates can give high area in a small package.

Never apologize for being an engineer! that's absolutely true.

dr. tom once described a old school chiller at a brewery that I can't recall just now that was essentially a sheet of copper that the wort sheeted down with counterflow cold on the opposing side.

That image stuck in my head and I sort of want to build something like that. It seems very willy wonka to me

[hopfenundmalz]

These are in many brewing museums in Europe.



You might need some more room.

[morticaixavier]

That is SO going in my imaginary brew pub. thanks hopfen.

[HoosierBrew]

That is SO going in my imaginary brew pub. thanks hopfen.

+1.  Awesome  -  never seen one before.

[redzim]

Kind of like this. http://www.mrmalty.com/chiller.php

Some folks claim ten minutes from boil to pitch temp

Yup.  With 50ft of 1/2" copper and 35F water pumped (with a pond pump) from a barrel I keep in a walk-in cooler, I can drop 10gal from boiling to 60F in about 9 minutes. To get a lager to 48F takes 12 min.

I don't bother recirculating, I stir gently with a spoon until it's under 100F, then stir more vigorously to get aeration started.

[weithman5]

depends on which way you hook them up as to if they are parallel flow or counter flow.  there is yet another type of heat exchanger called a cross flow heat exchanger but you don't see these very often.  i experimented with something similar to this by putting my IC in a bucket and then had the recirc flow go from top of the bucket down over the ic and out the bottom.  but i now brew small enough batches that i just put the kettle in the fridge overnight