Question

A long cylinder of 35-mm diameter, initially at a uniform temperature of 1050 K, is suddenly quenched in a large, constant-temperature oil bath at 330 K. The cylinder properties are k = 2.5 W/m K, c = 1500 J/kg K, and convection coefficient is 90 W/m². p 500 kg/m³, while the

(a) Calculate the time required for the surface of the cylinder to reach 520 K.

(b) What is the centerline temperature at this time.

(c) Calculate the heat that left the cylinder and

(d) what is the error if the lump capacitance method is used?​

Answer 1

Answer:

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