4. A 3-m-high wall and 5-m-wide wall consists of long 18-cm x 30-cm cross section horizontal brick (k = 0.72 W/m.°C) with 12-cm x 24-cm fiberglass insulation material (k = 0.043 W/m.°C) as the center core. The bricks are separated by 3-cm-thich plaster (k= 0.22 W/m. °C). There are also 2-cm-thich plaster on each side of the brick and a 2-cm-thick foam (k = 0.026 W/m. °C) on the inner side of the wall, as shown in Fig. Q3. The indoor and outdoor temperatures are 20 °C and -10 °C, respectively, and the convection heat transfer coefficients on the inner and the outer sides are h1 = 10 W/m² °C and h2 = 25 W/m²°C, respectively. Assuming one-dimensional heat transfer and disregarding radiation, calculate the rate of heat transfer through the wall. Foam Plaster 11.5 cm Brick 2cm 2cm 18 cm- 2cm 30 cm 1.5 cm Fiberglass insulation

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
icon
Concept explainers
Question
4.
A 3-m-high wall and 5-m-wide wall consists of long 18-cm x 30-cm cross section
horizontal brick (k = 0.72 W/m.°C) with 12-cm x 24-cm fiberglass insulation material (k =
0.043 W/m.°C) as the center core. The bricks are separated by 3-cm-thich plaster (k= 0.22
W/m. °C). There are also 2-cm-thich plaster on each side of the brick and a 2-cm-thick
foam (k = 0.026 W/m. °C) on the inner side of the wall, as shown in Fig. Q3. The indoor
and outdoor temperatures are 20 °C and -10 °C, respectively, and the convection heat
transfer coefficients on the inner and the outer sides are h1 = 10 W/m² °C and h₂ = 25
W/m² °C, respectively. Assuming one-dimensional heat transfer and disregarding
radiation, calculate the rate of heat transfer through the wall.
Foam
Plaster
11.5 cm
Brick
2cm 2cm
18 cm
2cm
30 cm
1.5 cm
Fiberglass.
insulation
Transcribed Image Text:4. A 3-m-high wall and 5-m-wide wall consists of long 18-cm x 30-cm cross section horizontal brick (k = 0.72 W/m.°C) with 12-cm x 24-cm fiberglass insulation material (k = 0.043 W/m.°C) as the center core. The bricks are separated by 3-cm-thich plaster (k= 0.22 W/m. °C). There are also 2-cm-thich plaster on each side of the brick and a 2-cm-thick foam (k = 0.026 W/m. °C) on the inner side of the wall, as shown in Fig. Q3. The indoor and outdoor temperatures are 20 °C and -10 °C, respectively, and the convection heat transfer coefficients on the inner and the outer sides are h1 = 10 W/m² °C and h₂ = 25 W/m² °C, respectively. Assuming one-dimensional heat transfer and disregarding radiation, calculate the rate of heat transfer through the wall. Foam Plaster 11.5 cm Brick 2cm 2cm 18 cm 2cm 30 cm 1.5 cm Fiberglass. insulation
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Energy transfer
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON