Engineering, 26.07.2019 20:20 yvettegonzalez3390yg
Acan of soda is initially at a uniform temperature of 3°c. the aluminum can is 12.5-cm high and has a diameter of 6 cm. the thickness of the can wall is 0.11 mm. the combined convective and radiative heat transfer coefficient between the can and the surrounding air of 25°c is 10 w/m2 · k. (a) determine the overall heat transfer coefficient, assuming the heat transfer from the bottom of the can is negligible. (b) estimate how long it will take for the average temperature of the soda to rise to 10°c, assuming the heat transfer rate is constant at its initial value. (c) in order to slow the warming of the soda, the soda is placed in a 1-cm thick cylindrical koozie (k = 0.13 w/m · k). estimate how long it will now take for the average temperature to rise to 10°c, recognizing that the top of the can is not covered.
Answers: 2
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Acan of soda is initially at a uniform temperature of 3°c. the aluminum can is 12.5-cm high and has...
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