2.20 Consider a small but known volume of metal that has a large thermal conductivity.
(a) Since the thermal conductivity is large, spatial temperature gradients that develop within the metal in response to mild heating are small. Neglecting spatial temperature gradients, derive a differential equation that could be solved for the temperature of the metal versus time T(t) if the metal is subjected to a fixed surface heat rate q supplied by an
electric heater.
Негізгі бет Problem 2.20 -Consider a small but known volume of metal that has a large thermal conductivity
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