Water flows at 67 C inside a 2.5 cm inside diameter tube such that hi = 3500 W/m² .C. The tube has a wall thickness 0.72 mm with a thermal conductivity of 18 W/m.C. The outside of the tube loses heat by free convection with ho= 7.6 W/m².C. Calculate the overall heat transfer coefficient and heat loss per unit length to surrounding air at 15 C.

Water flows at 67 C inside a 2.5 cm inside diameter tube such that hi = 3500 W/m² .C. The tube has a wall thickness 0.72 mm with a thermal conductivity of 18 W/m.C. The outside of the tube loses heat by free convection with ho= 7.6 W/m².C. Calculate the overall heat transfer coefficient and heat loss per unit length to surrounding air at 15 C.

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.18P: The heat transfer coefficient for a gas flowing over a thin float plate 3-m long and 0.3-m wide...

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