|Read the problem statement and the solution provided. There may or may not be one or moremistakes in the solution. Go through the solution carefully and then do the following.1. State if the solution is correct or incorrect2. If the solution is incorrect, identify what is the mistake in the solution. Be specific and succinct.3. If the solution is incorrect, provide the final solution with appropriate steps. You can make thecorrections directly on a copy of this provided solution, but make sure you clearly explain thecorrections.Problem: Consider fully-developed flow of water through a 24-cm diameter tube. The water comes in at20°C and exits at 40°C. The surface temperature of the tube is uniform at 60°C. The water flow has amass flow rate of 0.24 kg/s. What is the average convection coefficient of the water flow?Solution: We have T, = 60°C, Tmi = 20°C, Tmo = 40°C, So, the bulk-mean temperature is Tm = 30°C.The appropriate properties are: u = 7.98 × 10-4 kg/ms;k = 0.615 W/m-K;Pr = 5.424rn= 5012πμDThe Reynolds number is: RepUsing Dittus-Boelter correlation, we findNup = 0.023 Re Pr0.4 = 41.2k105.2 W/m²-KNup-DSo the average convection coefficient is hp

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Problem: Consider fully-developed flow of water through a 24-cm diameter tube. The water comes in at 20°C and exits at 40°C. The surface temperature of the tube is uniform at 60°C. The water flow has a mass flow rate of 0.24 kg/s. What is the average convection coefficient of the water flow?

Problem: Consider fully-developed flow of water through a 24-cm diameter tube. The water comes in at 20°C and exits at 40°C. The surface temperature of the tube is uniform at 60°C. The water flow has a mass flow rate of 0.24 kg/s. What is the average convection coefficient of the water flow?

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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|Read the problem statement and the solution provided. There may or may not be one or more
mistakes in the solution. Go through the solution carefully and then do the following.
1. State if the solution is correct or incorrect
2. If the solution is incorrect, identify what is the mistake in the solution. Be specific and succinct.
3. If the solution is incorrect, provide the final solution with appropriate steps. You can make the
corrections directly on a copy of this provided solution, but make sure you clearly explain the
corrections.
Problem: Consider fully-developed flow of water through a 24-cm diameter tube. The water comes in at
20°C and exits at 40°C. The surface temperature of the tube is uniform at 60°C. The water flow has a
mass flow rate of 0.24 kg/s. What is the average convection coefficient of the water flow?
Solution: We have T, = 60°C, Tmi = 20°C, Tmo = 40°C, So, the bulk-mean temperature is Tm = 30°C.
The appropriate properties are: u = 7.98 × 10-4 kg/ms;
k = 0.615 W/m-K;
Pr = 5.42
4rn
= 5012
πμD
The Reynolds number is: Rep
Using Dittus-Boelter correlation, we find
Nup = 0.023 Re Pr0.4 = 41.2
k
105.2 W/m²-K
Nup-
D
So the average convection coefficient is hp

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