Question
A solid AISI 302 stainless steel sphere of diameter 170 mm is coated with a 2-mm dielectric layer with a thermal conductivity k =0.03 W/m-K.
A solid AISI 302 stainless steel sphere of diameter 170 mm is coated with a 2-mm dielectric layer with a thermal conductivity k =0.03 W/m-K. The sphere is suddenly quenched in a liquid at 100°C with a convective coefficient of 3500 W/m2K. After five hours, the sphere reaches a temperature of 150°C. What was the initial temperature of the stainless steel sphere? Evaluate the properties of the AISI 302 stainless steel at 600 K. rCalculate the initial temperature of the stainless steel sphere, in °C?
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Fundamentals Of Heat And Mass Transfer
Authors: Theodore L. Bergman, Adrienne S. Lavine, Frank P. Incropera, David P. DeWitt
7th Edition
0470501979, 978-0470501979
