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| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 2 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 concrete wall with a surface area of 20 m2 and a thickness of 0.30 m separates conditioned room air from ambient air. The temperature of the inner surface of the wall (T1) is maintained at 25ºC. (a) Determine the heat loss Q · (W) through the concrete wall for three thermal conductivity values of (0.75, 1, and 1.25 W/m·K) and outer wall surface temperatures of T2 = -15, -10, -5, 0, 5, 10, 15, 20, 25, 30, and 38 ºC (a total of 11 data points for each thermal conductivity value). Tabulate the results for all three cases in one table. Also provide a computer generated graph [Heat loss, Q · (W) vs. Outside wall temperature, T2 (°C)] for the display of your results. The results for all three cases should be plotted on the same graph. (b) Discuss your results for the three cases.
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