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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A molded plastic product (ρ = 1200 kg/m3, c = 1500 J/kg ∙ K, k = 0.30 W/m ∙ K) is cooled by exposing one surface to an array of air jets, while the opposite surface is well insulated. The product may be approximated as a slab of thickness L = 60 mm, which is initially at a uniform temperature of Ti = 80°C. The air jets are at a temperature of T∞ = 20°C and provide a uniform convection coefficient of h = 100 W/m2 ∙ K at the cooled surface.

Using a finite-difference solution with a space increment of ∆x = 6 mm, determine temperatures at the cooled and insulated surfaces after 1 h of exposure to the gas jets.
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