Air is flowing through a thick walled copper pipe that can be considered to be isothermal at 450 degrees C. Inner diameter of the pipe is 3cm and 0.9m long. Air enters at 30 degrees C and exit bulk temperature is 95 degrees C. if the length is now doubled assuming air mass flow rate and heat transfer coefficient remain the same in both lengths what is the new bulk temperature at the exit? a) 148.58°C b) 151°C c) 140.2°C d) 158.6°C

Air is flowing through a thick walled copper pipe that can be considered to be isothermal at 450 degrees C. Inner diameter of the pipe is 3cm and 0.9m long. Air enters at 30 degrees C and exit bulk temperature is 95 degrees C. if the length is now doubled assuming air mass flow rate and heat transfer coefficient remain the same in both lengths what is the new bulk temperature at the exit? a) 148.58°C b) 151°C c) 140.2°C d) 158.6°C

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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