Nitrogen at 1 atm and 100 °C enters into an equilateral triangular cross section duct of each side 25 cm long with an average velocity of 10 m/s. The duct wall is maintained at a constant surface temperature of 800 °C and the outlet mean temperature is 300 °C. a) What is the bulk mean temperature Tm and Reynolds number Re? b) What is the convection heat transfer coefficient h? c) Assuming smooth tube, estimate the length L of the duct and the pumping power required.

Nitrogen at 1 atm and 100 °C enters into an equilateral triangular cross section duct of each side 25 cm long with an average velocity of 10 m/s. The duct wall is maintained at a constant surface temperature of 800 °C and the outlet mean temperature is 300 °C. a) What is the bulk mean temperature Tm and Reynolds number Re? b) What is the convection heat transfer coefficient h? c) Assuming smooth tube, estimate the length L of the duct and the pumping power required.

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.6P: 5.6 A fluid flows at 5 over a wide, flat plate 15 cm long. For each from the following list,...

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