Dry air enters an inclined pipeline in the upward direction being preheated. The pipe has an inner diameter of 0.3 m and a total length of 5 m with a 30° inclination from the horizontal direction. The air enters at 300 kPa (absolute) with a velocity at 3 m/s, density of 3 kg/m³, and at an ambient temperature of 20°C. The electrical heaters around the pipe surface provides a uniform heating flux of 2 kW/m² and the exiting pressure was measured to be 150 kPa. Assume ideal gas behavior, and the air specific heat can be approximated as Cp = 900+ 0.37 (where T is in Kelvin). Please calculate the exiting temperature of the air. You may need the following formula: The formula for the roots of a general quadratic equation ax² + bx+c = 0 is -b ± √b²-4ac 2a

Dry air enters an inclined pipeline in the upward direction being preheated. The pipe has an inner diameter of 0.3 m and a total length of 5 m with a 30° inclination from the horizontal direction. The air enters at 300 kPa (absolute) with a velocity at 3 m/s, density of 3 kg/m³, and at an ambient temperature of 20°C. The electrical heaters around the pipe surface provides a uniform heating flux of 2 kW/m² and the exiting pressure was measured to be 150 kPa. Assume ideal gas behavior, and the air specific heat can be approximated as Cp = 900+ 0.37 (where T is in Kelvin). Please calculate the exiting temperature of the air. You may need the following formula: The formula for the roots of a general quadratic equation ax² + bx+c = 0 is -b ± √b²-4ac 2a

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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Question

Can you help me with my homework.

Dry air enters an inclined pipeline in the upward direction being preheated. The pipe has
an inner diameter of 0.3 m and a total length of 5 m with a 30° inclination from the
horizontal direction. The air enters at 300 kPa (absolute) with a velocity at 3 m/s, density
of 3 kg/m³, and at an ambient temperature of 20°C. The electrical heaters around the pipe
surface provides a uniform heating flux of 2 kW/m² and the exiting pressure was
measured to be 150 kPa. Assume ideal gas behavior, and the air specific heat can be
approximated as
Cp
Please calculate the exiting temperature of the air.
=
900+ 0.37 (where T is in Kelvin).
123k
You may need the following formula:
The formula for the roots of a general quadratic equation ax² + bx+c = 0 is
-b ± √b²-4ac
2a

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