Air (pressure 1 atm) enters a circular pipe 5 cm in diameter at 20 °C with an average speed of 5 m/s. The tube wall is maintained at a constant surface temperature of 160°C, and the mean outlet temperature is 80°C. Estimate the length of the tube.

Air (pressure 1 atm) enters a circular pipe 5 cm in diameter at 20 °C with an average speed of 5 m/s. The tube wall is maintained at a constant surface temperature of 160°C, and the mean outlet temperature is 80°C. Estimate the length of the tube.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.20P

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