A cast iron pipe is used to transfer steam with an inlet temperature of 350 C. Inner radius of the pipe is 5 cm. The thickness of the pipe (k=20 W/(mK)) is 0.5 cm and there is an insulation (k=0.07 W/mK) over the pipe with a thickness of 4 cm. Environmental temperature is -5 C. Determine the steady heat loss from the pipe if the steam convection coefficient is 70 W/(m^2K) and environment convection coefficient is 20 W/(m^2K)? Is insulation thickness enough? steam steam 167 W, yes O 187 W, yes O 147 W, yes 120 W, no none
A cast iron pipe is used to transfer steam with an inlet temperature of 350 C. Inner radius of the pipe is 5 cm. The thickness of the pipe (k=20 W/(mK)) is 0.5 cm and there is an insulation (k=0.07 W/mK) over the pipe with a thickness of 4 cm. Environmental temperature is -5 C. Determine the steady heat loss from the pipe if the steam convection coefficient is 70 W/(m^2K) and environment convection coefficient is 20 W/(m^2K)? Is insulation thickness enough? steam steam 167 W, yes O 187 W, yes O 147 W, yes 120 W, no none
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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![A cast iron pipe is used to transfer steam with an inlet temperature of 350
C. Inner radius of the pipe is 5 cm. The thickness of the pipe (k=20
W/(mK)) is 0.5 cm and there is an insulation (k=0.07 W/mK) over the pipe
with a thickness of 4 cm. Environmental temperature is -5 C. Determine
the steady heat loss from the pipe if the steam convection coefficient is
70 W/(m^2K) and environment convection coefficient is 20 W/(m^2K)? Is
insulation thickness enough?
steam
steam
167 W, yes
187 W, yes
147 W, yes
120 W, no
none](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F16746fbd-4c1d-46c3-aa33-24983f63634d%2F72c93663-895a-4368-b828-87c5c60a4d5c%2Fbwbqfh_processed.png&w=3840&q=75)
Transcribed Image Text:A cast iron pipe is used to transfer steam with an inlet temperature of 350
C. Inner radius of the pipe is 5 cm. The thickness of the pipe (k=20
W/(mK)) is 0.5 cm and there is an insulation (k=0.07 W/mK) over the pipe
with a thickness of 4 cm. Environmental temperature is -5 C. Determine
the steady heat loss from the pipe if the steam convection coefficient is
70 W/(m^2K) and environment convection coefficient is 20 W/(m^2K)? Is
insulation thickness enough?
steam
steam
167 W, yes
187 W, yes
147 W, yes
120 W, no
none
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