Consider the flow of oil at 20oC in a 40-cm-diameter pipeline at an average velocity of 0.5 m/s. A 300-m-long section of the pipeline passes through icy waters of a lake at 0°C. Measurements indicate that the surface temperature of the pipe is very nearly 0°C. Disregarding the thermal resistance of the pipe material, determine the temperature of the oil when the pipe leaves the lake, and the rate of heat transfer from the oil ρ=893.5 kg/m3 Cp=1838 J/kgoC, k=0.146W/m ̊C, Pr=28750, V = 259,1x10-5 m2/s

Consider the flow of oil at 20oC in a 40-cm-diameter pipeline at an average velocity of 0.5 m/s. A 300-m-long section of the pipeline passes through icy waters of a lake at 0°C. Measurements indicate that the surface temperature of the pipe is very nearly 0°C. Disregarding the thermal resistance of the pipe material, determine the temperature of the oil when the pipe leaves the lake, and the rate of heat transfer from the oil ρ=893.5 kg/m3 Cp=1838 J/kgoC, k=0.146W/m ̊C, Pr=28750, V = 259,1x10-5 m2/s

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 7.16P

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