Hot water is flowing through a 3.5 cm (1-1/4") schedule 40 steel pipe at a velocity of 1.8 m/s. The inlet temperature is 110 °C, and the length of the pipe is 15 m. A 2 cm thick layer of insulation (k=0.12 W/m°C) covers the pipe. The outside film coefficient is 10 W/m2°C, and the ambient temperature is 20°C. Calculate the drop in the temperature of the water over this section of the pipe.

Hot water is flowing through a 3.5 cm (1-1/4") schedule 40 steel pipe at a velocity of 1.8 m/s. The inlet temperature is 110 °C, and the length of the pipe is 15 m. A 2 cm thick layer of insulation (k=0.12 W/m°C) covers the pipe. The outside film coefficient is 10 W/m2°C, and the ambient temperature is 20°C. Calculate the drop in the temperature of the water over this section of the pipe.

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 7.37P

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