Engineering, 26.11.2019 00:31, hannahkharel2

Air at 20℃ and a pressure of 1 atm enters into a 5-mm-diameter circular tube that is 10-cm-long at a velocity of 5 m/s. the tube wall is maintained at a constant surface temperature of 160℃. determine the convection heat transfer coefficient and the outlet mean temperature of the air. evaluate air properties at 50℃. (35 points)

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Air at 20℃ and a pressure of 1 atm enters into a 5-mm-diameter circular tube that is 10-cm-long at a...