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Old June 10th 13, 11:05 AM posted to rec.aviation.soaring
Tom Gardner[_2_]
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Posts: 49
Default fin/wing tanks freezing

wrote:
On Sunday, June 9, 2013 6:14:19 PM UTC-7, Mike the Strike wrote:
On Sunday, June 9, 2013 6:11:35 PM UTC-7, Mike the Strike wrote:

How about testing the counter-intuitive experimental finding that warm water freezes quicker than cold (the suggestion is convection currents increase heat transfer).


Mike


Google "Mpemba effect"


I suspect it's BS.


Consider a refrigerator in which a bowl is in contact with
the cooling coils, and the coils have a layer of frost.

Put bowls of hot and cold water onto the frosty coils.
Hot bowl melts the frost to produce a puddle of water,
but the cold bowl does not.

Water re-freezes so that the hot bowl is in much better
thermal contact with the cold coils, so heat is removed
faster and the hot water freezes sooner.

None of which is likely to be relevant in a glider.