Atmospheric air at 5°C enters a thin walled 12cm diameter 20m long isothermal pipe (Ts=constant) at a velocity of 2.5m/s and leaves at 19°C. Estimate the surface temperature Ts. Atmospheric air at 5°C enters a thin walled 12cm diameter 20m long isothermal pipe(T;=constant) at a velocity of 2.5m/s and leaves at 19°C. Estimate the surface temperatureTs.Air5°C12 cm19°C2.5 m/s20 m

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Atmospheric air at 5°C enters a thin walled 12cm diameter 20m long isothermal pipe (Ts=constant) at a velocity of 2.5m/s and leaves at 19°C. Estimate the surface temperature Ts.

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 7.38P

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Question

Atmospheric air at 5°C enters a thin walled 12cm diameter 20m long isothermal pipe (T_s=constant) at a velocity of 2.5m/s and leaves at 19°C. Estimate the surface temperature T_s.

Atmospheric air at 5°C enters a thin walled 12cm diameter 20m long isothermal pipe
(T;=constant) at a velocity of 2.5m/s and leaves at 19°C. Estimate the surface temperature
Ts.
Air
5°C
12 cm
19°C
2.5 m/s
20 m

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