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Which one will cool faster??

saurabhjain

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Which one will cool faster??

bottle.jpg

You have a cold drink bottle at room temperature. In order to cool it, you place it in the refrigerator. But you want it get chilled faster. Now you have two options, place it vertical or horizontal. Assuming the effects of forced convection are negligible in your refrigerator, which way will the bottle cool fast either Horizontal or Vertical?




6 Comments


In refrigerator temperature gradient is in vertical direction, horizontal kept bottle will be at larger mean temperature difference than the vertically kept bottle.

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No such difference between cooling vertically or horizontally the bottle since cooling is extracting heat from a substance, the beer itself, extracting heat wether horizontally or vertically will have the same formula Q=mC (T-t), ....... as to dynamics of heat transfer, position of affected heat transfer area will not affect the transmission of heat....theoritically position of any substance will have no effect on  heat analysis.

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