CHE260H1 Lecture Notes - Lecture 10: Heat Transfer Coefficient
26 Jan 2016
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A 65-kg beef carcass (k = 0. 47 w/moc and = 1. 3 x 10-7 m2/s) initially at a uniform temperature of 37oc is to be cooled by refrigerated air at -10oc flowing at a velocity of 1. 2 m/s. The average heat transfer coefficient between the carcass and the air is 22 w/m2 oc. Also, determine if any part of the carcass will freeze during this process. Steel balls 12 mm in diameter are annealed by heating to 1150k and then slowly cooling to 400. K in an air environment for which t =325 k and h = 20 w/m2-k.
