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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Annealing is a process by which steel is reheated and then cooled to make it less brittle. Consider the reheat stage for a 100-mm-thick steel plate
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 which is initially at a uniform temperature of Ti = 200°C and is to be heated to a minimum temperature of 550°C. Heating is effected in a gas-fired furnace, where products of combustion at T∞ = 800°C maintain a convection coefficient of h = 250 W/m2 ∙ K on both surfaces of the plate. How long should the plate be left in the furnace?
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