Determine the convection heat transfer coefficient (in W/m²-K) for air flowing at a velocity of 3 m/s in a 10-cm diameter and 10-m long tube. Air enters the tube at 10°C and leaves at 20°C, i.e. air is heated. Take the property of air at 1 atm and assume flow to be fully developed. For air at 1 atm: Temperature k, W/m-K v, m?/s Pr 15°C 0.02476 1.470×105 0.7323 20°C 0.02514 1.516x105 0.7309 25°C 0.02551 1.562x105 0.7296 Hint: When the fluid temperature changes, we use its properties at mean temperature, unless otherwise specified.

Determine the convection heat transfer coefficient (in W/m²-K) for air flowing at a velocity of 3 m/s in a 10-cm diameter and 10-m long tube. Air enters the tube at 10°C and leaves at 20°C, i.e. air is heated. Take the property of air at 1 atm and assume flow to be fully developed. For air at 1 atm: Temperature k, W/m-K v, m?/s Pr 15°C 0.02476 1.470×105 0.7323 20°C 0.02514 1.516x105 0.7309 25°C 0.02551 1.562x105 0.7296 Hint: When the fluid temperature changes, we use its properties at mean temperature, unless otherwise specified.

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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