Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
3-78 Circular aluminum disk fins of constant rectangular profile are attached to a tube having D - 25 cm outside diameter with a spacing of 8 mm (that is, 125 fins per l-m tube length). Fins have a thickness t-I mm, height L-15 mm, and thermal conductivity k- 200 W/(m "C). The tube wall is main- tained at a temperature T, - 190°C, and the fins dissipate heat by convection into ambient air at T. = 40°C with a heat transfer coefficient h = 80 W/(m. "C). (a) Determine the fin efficiency. (b) Determine the area-weighted fin efficiency. (c) Determine the net heat los per t-m length of tube

3-78 Circular aluminum disk fins of constant rectangular profile are attached to a tube having D - 25 cm outside diameter with a spacing of 8 mm (that is, 125 fins per l-m tube length). Fins have a thickness t-I mm, height L-15 mm, and thermal conductivity k- 200 W/(m "C). The tube wall is main- tained at a temperature T, - 190°C, and the fins dissipate heat by convection into ambient air at T. = 40°C with a heat transfer coefficient h = 80 W/(m. "C). (a) Determine the fin efficiency. (b) Determine the area-weighted fin efficiency. (c) Determine the net heat los per t-m length of tube

Elements Of Electromagnetics
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
See similar textbooks
icon
Related questions
Question
3-78 Circular aluminum disk fins of constant rectangular profile are attached to a tube having D - 25 cm outside diamcter with a spacing of 8 mm (that is, 125 fins per l-m tube length). Fins have a thickness t-I mm, beight L- 15 mm, and thermal conductivity k- 200 W/(m- °C). The tube wall is main- tained at a temperature T, = 190°C, and the fins dissipate hcat by convection into ambient air at T. = 40°C with a heat transfer cocfficient h = 80 W/(m.°C). (a) Determine the fin efficiency. (b) Determine the area-weighted fin efficiency. (c) Determine the net heat loss per t-m length of tube. (d) What would be the heat loss per 1-m length of tube if no fins were attached?
Transcribed Image Text:3-78 Circular aluminum disk fins of constant rectangular profile are attached to a tube having D - 25 cm outside diamcter with a spacing of 8 mm (that is, 125 fins per l-m tube length). Fins have a thickness t-I mm, beight L- 15 mm, and thermal conductivity k- 200 W/(m- °C). The tube wall is main- tained at a temperature T, = 190°C, and the fins dissipate hcat by convection into ambient air at T. = 40°C with a heat transfer cocfficient h = 80 W/(m.°C). (a) Determine the fin efficiency. (b) Determine the area-weighted fin efficiency. (c) Determine the net heat loss per t-m length of tube. (d) What would be the heat loss per 1-m length of tube if no fins were attached?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Convection
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS