"Ed Huntress" wrote in message
...
On Wed, 14 Mar 2012 20:25:39 -0700, Winston
wrote:

wrote:
On Mar 14, 4:54 pm, Ecnerwal
wrote:



If it were a one-day deal or the like, I'd agree with you, but I'd
choose refrigeration in a heartbeat for any regular use. I'm intimately
aware of the hassles of salt-ice refrigeration, and I'm quite certain
that if I were making ice cream and sorbet as a busness rather than for
myself, it would be an easy decision to spend the money for a
refrigerated mixer - for home use it's a lot of money, so I use salt
and
ice.


Another approach would be to use a solid state cooler and a bit of
compressed air.

Peltier Junction Thermo Electric Heat Pump


One could refrigerate a jug of water for a few days
then use it as a heat sink for the copper tube.
That'd be inefficient but it might be cheaper
because it would eliminate the trip to the store
for bags of ice.

Who needs a store? I make my own ice in a little stand-up freezer. In
the summer, when I'm fishing, I make about 10 to 20 pounds of it every
couple of days.

Yeah, I took all the shelves out of the freezer in my shop fridge and put a
great big tub under the little ice maker in there. It holds 30-40 pounds of
ice if I remember to turn the tub around so the other side fills. In the
summer when I am fishing a lot that is never a problem. LOL.

It's a lot cheaper than running a compressor at the low efficiencies
of a Hilsch tube...or buying ice.

I would consider using the freezer part of the fridge to pre-cool a coil of
air, but its on the other side of the shop. I actually considered putting
my CNC computers inside a little apartment fridge in the shop. Maybe now is
the time to get a second shop fridge. LOL.