"JoeSpareBedroom" wrote in message
...
"Short Wave Sportfishing" wrote in message
...
On Wed, 27 Jun 2007 13:53:39 GMT, "JoeSpareBedroom"
wrote:

"Short Wave Sportfishing" wrote in message
...
I watched a Mthbusters that I had missed yesterday which tested the
fastest way to cool beer.

So I tried the experiment myself yesterday with a couple of Playmate
coolers.

First cooler had a six pack of Diet Pepsi, ice and salt water. I used
about a 1/4 box of salt on the ice and in the second cooler a six pack
of Diet Pepsi with just ice. I put both coolers on the rear deck, in
the sun, of my Ranger at 6 PM.

As expected, the ice/salt combination cooled the soda to 36 degrees F
in roughly fifteen minutes which matches the Mythbusters experiment.
As of 10 PM last evening, the ice only soda only reached 45 degrees.

However, the interesting piece of this was this morning. The ice/salt
water combination over night kept the soda cooled and as of ten
minutes ago, the water was at 50 degrees F. The straight ice cooler
water was at 62 degrees.

Cool huh?

Get it - cool?

Was the soda on top of the ice, or under, or what?

In.

I'm doing another experiment right now with the heat of the day coming
up nicely.

I'll see how this one works out.


4 hours, and the straight ice version only got the soda to 45 degrees?
Weird. Or, how much ice was involved, maybe compared to the size of a 6
pack still with its plastic thing intact?
\

Not weird. The ice just does not melt much with the cans in there. They
cool down the place touching the ice, and then slowly melt. The salt lowers
the freezing temperature to less than 29 degrees and all that ice melting
takes up a huge amount of heat energy. Ice going from frozen to liquid
state gives up a, if I remember correctly 100 calories per gram when
changing state. To raise the liquid water one degree C only takes 1 calorie
per gram. So the ice melting the ice sucks up lots of the heat from the
cans.