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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

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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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 %3D 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 0.8 relation Nu= 0.023 Re Pr . 3 roperties : 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 p Select one: А. 15.65 В. 17.11 С. 14.15 D. 19.94 E. 18.60
Transcribed Image Text: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 %3D 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 0.8 relation Nu= 0.023 Re Pr . 3 roperties : 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 p Select one: А. 15.65 В. 17.11 С. 14.15 D. 19.94 E. 18.60
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