A cylindrical cold storage facility with an inner diameter of 4m and height of 2m is constructed. For the wall, the first layer is 6 cm of glass wool (0.1 W/m-C), followed by 30 cm of concrete. The temperature inside is maintained at -10C (hin 55 W/m^2-C) while the outside temperature is 10°C (hout 22 w/m^2-C). If the steady rate of heat transfer is at 60W, (a) what is the thermal conductivity of concrete? (b) At what radius is the temperature at 0'C? To prevent water condensation inside the concrete wall (which damages the structure), A 5 cm layer of insulation (k = 0.15 W/m- C) is added to the exterior of the facility, (c) What is the new rate of

A cylindrical cold storage facility with an inner diameter of 4m and height of 2m is constructed. For the wall, the first layer is 6 cm of glass wool (0.1 W/m-C), followed by 30 cm of concrete. The temperature inside is maintained at -10C (hin 55 W/m^2-C) while the outside temperature is 10°C (hout 22 w/m^2-C). If the steady rate of heat transfer is at 60W, (a) what is the thermal conductivity of concrete? (b) At what radius is the temperature at 0'C? To prevent water condensation inside the concrete wall (which damages the structure), A 5 cm layer of insulation (k = 0.15 W/m- C) is added to the exterior of the facility, (c) What is the new rate of

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Question

PLEASE ANSWER IT ASAP FOR AN UPVOTE >>THERMODYNAMICS

Rin =
W/C
Rout =
W/C
R glass wool =
W/C
K concrete wall =
W/m-C
Radius where 0°C occurs =
m
With new insulation,
Rinsulation =
W/C
Q =
W
Tat interface of wall and insulation
°C
Is condensation prevented?

A cylindrical cold storage facility
with an inner diameter of 4m and
height of 2m is constructed. For
the wall, the first layer is 6 cm of
glass wool (0.1 W/m-C), followed
by 30 cm of concrete. The
temperature inside is maintained
at -10C (hin = 55 W/m^2-C) while
the outside temperature is 10°C
(hout = 22 w/m^2-C). If the steady
rate of heat transfer is at 60W, (a)
what is the thermal conductivity
of concrete? (b) At what radius is
the temperature at 0°C? To
prevent water condensation
inside the concrete wall (which
damages the structure), A 5 cm
layer of insulation (k 0.15 W/m-
C) is added to the exterior of the
facility. (c) What is the new rate of
heat transfer? (d) What is the
temperature at the interface of
the concrete wall and new
insulation? (e) is condensation
within the core of the wall
prevented?

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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