Foam Plaster A 4-m-high and 6-m-wide wall consists of a long 18-cm x 30-cm cross section of horizontal bricks (k=0.72W/m-°C) separated by 3-cm-thick plaster layers (k=0.22 W/m-°C). There are also 2-cm-thick plaster layers on each side of the wall, and a 2-cm-thick rigid foam (k=0.026W/m-°C) on the inner side of the wall. The indoor and the outdoor temperatures 1.5 cm Brick 30 cm are 22°C and -4°C, and the convection heat transfer coefficients on the 1.5 cm inner and outer sides are h;=10W/m2-°C and h2=20 W/m²-°C, respectively. Assuming one-dimensional heat transfer and disregarding radiation, determine the rate of heat transfer through the wall. 18 cm
Foam Plaster A 4-m-high and 6-m-wide wall consists of a long 18-cm x 30-cm cross section of horizontal bricks (k=0.72W/m-°C) separated by 3-cm-thick plaster layers (k=0.22 W/m-°C). There are also 2-cm-thick plaster layers on each side of the wall, and a 2-cm-thick rigid foam (k=0.026W/m-°C) on the inner side of the wall. The indoor and the outdoor temperatures 1.5 cm Brick 30 cm are 22°C and -4°C, and the convection heat transfer coefficients on the 1.5 cm inner and outer sides are h;=10W/m2-°C and h2=20 W/m²-°C, respectively. Assuming one-dimensional heat transfer and disregarding radiation, determine the rate of heat transfer through the wall. 18 cm
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
![Foam
Plaster
A 4-m-high and 6-m-wide wall consists of a long 18-cm x 30-cm cross
section of horizontal bricks (k=0.72W/m-°C) separated by 3-cm-thick
plaster layers (k=0.22 W/m-°C). There are also 2-cm-thick plaster layers
on each side of the wall, and a 2-cm-thick rigid foam (k=0.026W/m-°C)
on the inner side of the wall. The indoor and the outdoor temperatures
(1.5 cm
Brick
30 cm
are 22°C and -4°C, and the convection heat transfer coefficients on the
inner and outer sides are hi=10W/m²-°C and h2=20 W/m²-°C,
Į 1.5 cm
respectively. Assuming one-dimensional heat transfer and disregarding
radiation, determine the rate of heat transfer through the walI.
18 cm
2' 2
2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4a591117-48a6-4df7-b60d-e2e9ef8c7ee7%2Fc714a0b1-7234-4968-a214-81ce063af845%2Fuewmotvh_processed.png&w=3840&q=75)
Transcribed Image Text:Foam
Plaster
A 4-m-high and 6-m-wide wall consists of a long 18-cm x 30-cm cross
section of horizontal bricks (k=0.72W/m-°C) separated by 3-cm-thick
plaster layers (k=0.22 W/m-°C). There are also 2-cm-thick plaster layers
on each side of the wall, and a 2-cm-thick rigid foam (k=0.026W/m-°C)
on the inner side of the wall. The indoor and the outdoor temperatures
(1.5 cm
Brick
30 cm
are 22°C and -4°C, and the convection heat transfer coefficients on the
inner and outer sides are hi=10W/m²-°C and h2=20 W/m²-°C,
Į 1.5 cm
respectively. Assuming one-dimensional heat transfer and disregarding
radiation, determine the rate of heat transfer through the walI.
18 cm
2' 2
2
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