Unformatted text preview: time. Why??? (b) For an initial solid temperature T i , derive the temperature in the solid as a function of time and the total heat transfer rate. 3. An aluminum cube 5 cm on a side is initially at uniform temperature 100°C and is suddenly exposed to room air at 25°C. The convective heat transfer coefficient is 20 W/m 2 •K. Calculate the time required for the geometric center temperature to reach 50°C. 4. Beginning with a differential control volume, derive the general unsteady conduction equation in Cartesian coordinates for constant properties....
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This note was uploaded on 08/01/2008 for the course MAE 310 taught by Professor Kuznetsov during the Fall '08 term at N.C. State.
 Fall '08
 Kuznetsov
 Heat Transfer

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