A disk-shaped turbine rotor is heat-treated by quench-ing
Chapter 10, Problem 10.29(choose chapter or problem)
A disk-shaped turbine rotor is heat-treated by quench-ing in water at p?1 atm. Initially, the rotor is at auniform temperature of Ti?1100?C and the water isat its boiling point as the rotor is lowered into thequenching bath by a harness. (a) Assuming lumped-capacitance behavior and con-stant properties for the rotor, carefully plot therotor temperature versus time, pointing out impor-tant features of your T(t) curve. The rotor is inOrientation A.(b) If the rotor is reoriented so that its large surfacesare horizontal (Orientation B), would the rotortemperature decrease more rapidly or less rapidlyrelative to Orientation A?
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