Air flows in a pipe under fully developed conditions with an average velocity of 1.25 m/s and a temperature of 24°C. The pipe's inner diameter is 4 cm, and its length is 4 m. The first half of the pipe is kept at a constant wall temperature of 100°C. The second half of the pipe is subjected to a constant heat flux of 200 W. The properties of air at 80°C are p = 0.9994 kg/m³, k = 0.02953 W/m-K, v= 2.097 x 10-5 m²/s, cp=1008 J/kg-K, and Pr = 0.7154. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.

Air flows in a pipe under fully developed conditions with an average velocity of 1.25 m/s and a temperature of 24°C. The pipe's inner diameter is 4 cm, and its length is 4 m. The first half of the pipe is kept at a constant wall temperature of 100°C. The second half of the pipe is subjected to a constant heat flux of 200 W. The properties of air at 80°C are p = 0.9994 kg/m³, k = 0.02953 W/m-K, v= 2.097 x 10-5 m²/s, cp=1008 J/kg-K, and Pr = 0.7154. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.

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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Required information
Air flows in a pipe under fully developed conditions with an average velocity of 1.25 m/s and a temperature of 24°C. The
pipe's inner diameter is 4 cm, and its length is 4 m. The first half of the pipe is kept at a constant wall temperature of 100°C.
The second half of the pipe is subjected to a constant heat flux of 200 W. The properties of air at 80°C are p = 0.9994
kg/m³, k = 0.02953 W/m-K, v=2.097 × 10-5 m²/s, cp=1008 J/kg-K, and Pr = 0.7154.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Air
1.25 m/s
2m
T, = 100°C
D = 4 cm
2 m
Q₁ = 200 W
Determine the wall temperature at the exit of the tube.
The wall temperature at the exit of the tube is 79.2988 °C.

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