Oil enters a 1.25-cm diameter,3-m long tube at 38°C. The tube wall is maintained at 66°C, and flow velocity is 0.3 m/s. What is the total heat transfer to the oil and oil exit temperature? Assume an exit temperature of 50°C. Temperature (°C) p(kg/m³) µ(kg/m sec) Cp J/hg °C) k(W/m °C) 0.210 0.0725 1964 2047 0.144 0.140 40 867.05 60 864.04 80 852.02 0.0320 2131 0.138

Oil enters a 1.25-cm diameter,3-m long tube at 38°C. The tube wall is maintained at 66°C, and flow velocity is 0.3 m/s. What is the total heat transfer to the oil and oil exit temperature? Assume an exit temperature of 50°C. Temperature (°C) p(kg/m³) µ(kg/m sec) Cp J/hg °C) k(W/m °C) 0.210 0.0725 1964 2047 0.144 0.140 40 867.05 60 864.04 80 852.02 0.0320 2131 0.138

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.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.21P

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