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A steel ball 100 mm in diameter and initially at 900C is placed in air at 30C. Taking for steel, k = 40 W/mK,
A steel ball 100 mm in diameter and initially at 900C is placed in air at 30C. Taking for steel, k = 40 W/mK, p = 7800 kg/m, and c = 460 J/kgk and if h= 20 W/m2K, find (a) the temperature of the ball after 30 seconds, and (b) the rate of cooling (C/min) after 30 seconds.
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Heat Transfer
Authors: Jack Holman
10th edition
73529362, 978-0073529363
