A long 18-cm-diameter bar made of hardwood (k = 0.159 W/m K, = 1.75 10 -7 m
A long 18-cm-diameter bar made of hardwood (k = 0.159 W/m · K, α = 1.75 × 10-7 m2/s) is exposed to air at 30°C with a heat transfer coefficient of 8.83 W/m2·K. If the center temperature of the bar is measured to be 15°C after a period of 3-hours, the initial temperature of the bar is (a) 11.9°C
We can solve this problem using the one dimensional heat conduction equation and the concept of lump…View the full answer
Abdul Wahab Qaiser
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