A solid steel sphere (AISI 1010), 300 mm in diameter, is coated with a dielectric material layer
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A solid steel sphere (AISI 1010), 300 mm in diameter, is coated with a dielectric material layer of thickness 2 mm and thermal conductivity 0.04 W/m' K. The coated sphere is initially at a uniform temperature of 500°C and is suddenly quenched in a large oil bath for which T∝ = 100°C and h = 3300 W/m2 ∙ K. Estimate the time required for the coated sphere temperature to reach 140°C.
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Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
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