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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 6 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
A turbine blade 5 cm long with a cross-sectional area A = 4.5 cm2 and a perimeter P = 12 cm is made of a high alloy steel (k = 25 W/m K). The temperature of the blade attachment point is 500°C, and the blade is exposed to combustion gases at 900°C. The heat transfer coefficient between the blade surface and the combustion gases is 500 W/m2 K. Using the nodal network shown in the accompanying sketch, (a) determine the temperature distribution in the blade, the rate of heat transfer to the blade, and the fin efficiency of the blade and, (b) compare the fin efficiency calculated numerically with that calculated by the exact method.
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