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madhatter · 01-30-2004, 02:08 PM

Ahhh... I love a it when a tranport phenomena problem pops up.

However, I would want to drink a cold beer while I am working the problem. I can cool a beer(12 oz. aluminum can) from room temperature to 40 degrees celsius in 30 second or less. This just happens to be a popular problem in transport phenomena classes.

The trick is to put the beer in a container full of ice with some water. Now you spin the beer about its vertical axis in the ice. (spinning on the vertical access will prevent the beer from exploding when you open it) Poof! 30 second cold beer. Try it at a party sometime.

For the chemists reading this, you can add salt to the ice to lower the temperature of the ice bath to futher speed up the beer cooling process.

01-30-2004, 02:08 PM	#19 (permalink)
madhatter Upright	Ahhh... I love a it when a tranport phenomena problem pops up. However, I would want to drink a cold beer while I am working the problem. I can cool a beer(12 oz. aluminum can) from room temperature to 40 degrees celsius in 30 second or less. This just happens to be a popular problem in transport phenomena classes. The trick is to put the beer in a container full of ice with some water. Now you spin the beer about its vertical axis in the ice. (spinning on the vertical access will prevent the beer from exploding when you open it) Poof! 30 second cold beer. Try it at a party sometime. For the chemists reading this, you can add salt to the ice to lower the temperature of the ice bath to futher speed up the beer cooling process. Last edited by madhatter; 01-30-2004 at 02:12 PM..