Water (5.0 L/min) is flowing in a tube “D = 3 cm, L= 5 m" and is to be heated from 15°C to 60.3°C by applying a uniform heat flux on the outer surface of the tube by electric resistance heater. What is the power rating of the resistance heater (kW)? If turbulent flow use Dituss-Boetler relation Nu= 0.023 Re 0.8 Pr . Properties : p = 992.1 kg/m , C = 4179 J/kg.°C, k =,0.631 W/m°C, Pr ='4.32, v = 0.658E-6 m /s %3D Select one: А. 15.65 В. 17.11

Water (5.0 L/min) is flowing in a tube “D = 3 cm, L= 5 m" and is to be heated from 15°C to 60.3°C by applying a uniform heat flux on the outer surface of the tube by electric resistance heater. What is the power rating of the resistance heater (kW)? If turbulent flow use Dituss-Boetler relation Nu= 0.023 Re 0.8 Pr . Properties : p = 992.1 kg/m , C = 4179 J/kg.°C, k =,0.631 W/m°C, Pr ='4.32, v = 0.658E-6 m /s %3D Select one: А. 15.65 В. 17.11

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 7.4P

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