Ajhutch
Landlord.
- Joined
- Apr 12, 2016
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This is actually a complex problem that is one for a thermodynamicist, or heat transfer specialist to deal with. An accurate answer without complex mathematical modelling would be difficult to achieve.
Variables include
- thickness of snow; how large the cooling snow heat sink actually is; void created as snow melts, will the snow fill the gap or will the air then act as an insulating layer (heat transfer through gases is much worse than heat transfer through liquids by several orders of magnitude;
- thickness of glass
- shape of container
- run off of melted snow; will the snow pool or not if it does the temperature may rise and the driving force will be reduced
- will the beer be moved about occasionally
to name but a few
plus all the usual things like thermal conductivity of glass etc etc.
That said back of fag packet calcs may give a reasonable approximation.
And that comes from someone who has designed large process plant heat exchangers in another life.
But it is, after all, a bit of fun.... isn't it :whistle:
See - I TOLD you it was a physics question! Of course this means as a mere statistician I should have stayed well clear.