. (20 pts) a horizontal cylindrical pipe (k = 10 w/m·k) has an outer diameter of 15 cm and a wall thickness of 5 cm. the pipe is situated in a stationary air, where the air and surrounding temperature is 27°c. the outer surface temperature of the pipe is 127°c, and the pipe surface has an emissivity of 0.5. determine the inner surface temperature of the pipe. use the following air properties for the analysis: k = 0.03 w/m?k, ? = 20.92 × 10?6 m2 /s, ? = 29.90 × 10?6 m2 /s, pr = 0.70
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Category: womensstudies |
Author: Mona Eva

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