Question

The image below is of an aluminium plate that will be heated from the bottom. If the temperature at the bottom of the plate is 600 degrees Celsius and 20 degrees at the top, how long will it take for the top of the plate to reach 200 degrees Celsius?

Thermal conductivity = 200 W/mK

Specific heat = 921.096 J/kgK

mass of plate = 70kg

ToP 100 Battom 5 00 mm

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Answer #1

S9p x 200 A dT 109 1099x144 O 2m2 200x 0-2 x (600-2o O 200 x0.2 x 580 232RW 20 C 20o °C M OT 70x 921.096 X (200-20) 116 x10

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