3. A thin electrical heater is wrapped around the outer surface of a long cylindrical tube whose inner surface is maintained at a temperature of 6°C. The tube wall has inner and outer radii of 24 and 78 mm, respectively, and a thermal conductivity of 10 W/m K. The thermal contact resistance between the heater and the outer surface of the tube (per unit length of the tube) is R' t.c = 0.01 m· K/W. The outer surface of the heater is exposed to a fluid with To = -10°C and a convection coefficient of h = 100 W/m2. K. %3D Determine the heater power per unit length of tube required to maintain the heater at To = 25°C
3. A thin electrical heater is wrapped around the outer surface of a long cylindrical tube whose inner surface is maintained at a temperature of 6°C. The tube wall has inner and outer radii of 24 and 78 mm, respectively, and a thermal conductivity of 10 W/m K. The thermal contact resistance between the heater and the outer surface of the tube (per unit length of the tube) is R' t.c = 0.01 m· K/W. The outer surface of the heater is exposed to a fluid with To = -10°C and a convection coefficient of h = 100 W/m2. K. %3D Determine the heater power per unit length of tube required to maintain the heater at To = 25°C
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
Related questions
Question
Solve using the methodology : Known, Find, Schematic Diagram, Assumptions, Properties, Analysis and Comments.
Transcribed Image Text:8. A thin electrical heater is wrapped around the outer surface of a long cylindrical tube
whose inner surface is maintained at a temperature of 6°C. The tube wall has inner and
outer radii of 24 and 78 mm, respectively, and a thermal conductivity of 10 W/m K.
The thermal contact resistance between the heater and the outer surface of the tube
(per unit length of the tube) is R' t.c = 0.01 m · K/W. The outer surface of the heater is
exposed to a fluid with To = -10°C and a convection coefficient of h = 100 W /m2. K.
Determine the heater power per unit length of tube required to maintain the heater at
To = 25°C
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
Recommended textbooks for you
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY