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| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 4 Days Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Two concentric cylinders having diameters of 30 and 100 cm, respectively, have lengths of 2 m. The inside and outside emissivities are 0.2 and 0.4 and the surface temperatures are 800 K and 400 K, respectively. Calculate the net radiant heat loss from each cylinder for (a) enclosure by a large room at 300 K, and (b) the open ends of the cylinders are covered with insulating material.
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