I'm Interested if anybody uses this technique? i.e fill a lined (with SS) chest freezer with a glycol solution to cool fermenter jackets.
Also, can anyone tell me if there is a simple formula for calculating the cold water volume required for chilling wort e.g. 1 liter at 5C needed to chill 1 liter of boiling wort, or 1.5 liters at 10C to chill boiling wort?
Starts by using this formula,: Q=mc∆T
But then going to: heat gained=heat lost or
Heat gained + heat lost =0
So m(wort)×[specific heat wort or water]×(start temp wort-desired temp wort)+m(glycol)×[specific heat glycol]× (start temp glycol-desired wort temp)=0
You know your mass of wort, and all other temps, so you just need to solve for mass of glycol.
There done nerding out, I need a beer.
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