165mm W/m?-K ulated with several materials, and convection on the inside and outside of the pipe is a 's. Oil inside is at 118°C and air outside is at 25°C erial KA or h 10.256 W/m2-K 2.369 W/m2-K 0.257 W/m2-K h=120.3T2/3 (T in K) h=0.272/3 (T in K) Thickness 25mm 30mm 40mm nside putside mine the heat losses of the pipe, and what must be the temperature of the oil to decreas eat losses by 20%?

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
2. A pipe with:
ID: 130mm
OD: 165mm
k=15 W/m?-K
L= 2m
is insulated with several materials, and convection on the inside and outside of the pipe is as
follows. Oil inside is at 118°C and air outside is at 25°C
KA or h
10.256 W/m2-K
Material
Thickness
A
25mm
В
2.369 W/m2-K
30mm
C
0.257 W/m2-K
40mm
h=120.3T2/3 (T in K)
h=0.272/3 (T in K)
Oil inside
Air outside
Determine the heat losses of the pipe, and what must be the temperature of the oil to decrease
the heat losses by 20%?
Transcribed Image Text:2. A pipe with: ID: 130mm OD: 165mm k=15 W/m?-K L= 2m is insulated with several materials, and convection on the inside and outside of the pipe is as follows. Oil inside is at 118°C and air outside is at 25°C KA or h 10.256 W/m2-K Material Thickness A 25mm В 2.369 W/m2-K 30mm C 0.257 W/m2-K 40mm h=120.3T2/3 (T in K) h=0.272/3 (T in K) Oil inside Air outside Determine the heat losses of the pipe, and what must be the temperature of the oil to decrease the heat losses by 20%?
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

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