There is a horizontal PVC pipe (k=0.16 W/m°C) with a diameter of 15 cm, a wall of 3 mm and a length of 8 m. The external surface of PVC is at 19 °C. Inside this pipe is placed a steel pipe (k=45 W/m.°C), 7 em in external diameter and 2 mm thick, also 8 m long, where saturated steam circulates at 0.38 m. /s and 1.3 atm pressure. The temperature of the steel is at the same temperature of the steam. The annular space between the two pipes is filled with static air. Determine the heat flow that occurs from the steam to the outside of the system.

There is a horizontal PVC pipe (k=0.16 W/m°C) with a diameter of 15 cm, a wall of 3 mm and a length of 8 m. The external surface of PVC is at 19 °C. Inside this pipe is placed a steel pipe (k=45 W/m.°C), 7 em in external diameter and 2 mm thick, also 8 m long, where saturated steam circulates at 0.38 m. /s and 1.3 atm pressure. The temperature of the steel is at the same temperature of the steam. The annular space between the two pipes is filled with static air. Determine the heat flow that occurs from the steam to the outside of the system.

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.13P

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