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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Electric current flows through a long rod generating thermal energy at a uniform volumetric rate of![]()
2 × 106 W/m3. The rod is concentric with a hollow ceramic cylinder, creating an enclosure that is filled with air.
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The thermal resistance per unit length due to radiation between the enclosure surfaces is
 and the coefficient associated with free convection in the enclosure is h = 20 W/m2 ∙ K.
(a) Construct a thermal circuit that can be used to calculate the surface temperature of the rod, Tr. Label all temperatures, heat rates, and thermal resistances, and evaluate each thermal resistance.
(b) Calculate the surface temperature of the rod for the prescribed conditions.
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