A 20 m metal pipe, with a thermal conductivity of 60 W/(m. K), is carrying pasteurised orange juice with a temperature of 80 °C. The pipe has an inside diameter of 90 mm and a wall thickness of 10 mm. To keep the orange juice at as high a temperature as possible, a 45 mm thick layer of fibreglass insulation is added to the pipe. This fibreglass has a thermal conductivity of 0.02 W/(m. K). If the the temperature outside the pipe is 15 °C, how much heat will be lost from the pipe? Assume that the conditions are steady-state. What is the resistance to heat flow in the metal pipe?: What is the resistance to heat flow in the fibreglass insulation?: What is the overall rate of heat flow from this insulated pipe? K/W W K/W

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
icon
Related questions
Question
A 20 m metal pipe, with a thermal conductivity of 60 W/(m. K), is carrying pasteurised orange juice
with a temperature of 80 °C. The pipe has an inside diameter of 90 mm and a wall thickness of 10
mm.
To keep the orange juice at as high a temperature as possible, a 45 mm thick layer of fibreglass
insulation is added to the pipe. This fibreglass has a thermal conductivity of 0.02 W/(m. K).
If the the temperature outside the pipe is 15 °C, how much heat will be lost from the pipe? Assume
that the conditions are steady-state.
What is the resistance to heat flow in the metal pipe?:
What is the resistance to heat flow in the fibreglass insulation?:
What is the overall rate of heat flow from this insulated pipe?
KIW
W
K/W
Transcribed Image Text:A 20 m metal pipe, with a thermal conductivity of 60 W/(m. K), is carrying pasteurised orange juice with a temperature of 80 °C. The pipe has an inside diameter of 90 mm and a wall thickness of 10 mm. To keep the orange juice at as high a temperature as possible, a 45 mm thick layer of fibreglass insulation is added to the pipe. This fibreglass has a thermal conductivity of 0.02 W/(m. K). If the the temperature outside the pipe is 15 °C, how much heat will be lost from the pipe? Assume that the conditions are steady-state. What is the resistance to heat flow in the metal pipe?: What is the resistance to heat flow in the fibreglass insulation?: What is the overall rate of heat flow from this insulated pipe? KIW W K/W
Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Conduction
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