2-13 A certain building wall consists of 6.0 in of concrete [k = 1.2 W/m - °C], 2.0 in of fiberglass insulation, and in of gypsum board [k =0.05 W/m. °C]. The inside and outside convection coefficients are 2.0 and 7.0 Btu/h - ft? . °F, respectively. The outside air temperature is 20°F, and the inside temperature is 72°F. Calculate the overall heat-transfer coefficient for the wall, the R value, and the heat loss per unit area.
2-13 A certain building wall consists of 6.0 in of concrete [k = 1.2 W/m - °C], 2.0 in of fiberglass insulation, and in of gypsum board [k =0.05 W/m. °C]. The inside and outside convection coefficients are 2.0 and 7.0 Btu/h - ft? . °F, respectively. The outside air temperature is 20°F, and the inside temperature is 72°F. Calculate the overall heat-transfer coefficient for the wall, the R value, and the heat loss per unit area.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
Related questions
Question
![2-13 A certain building wall consists of 6.0 in of concrete [k =1.2 W/m °C], 2.0 in of
fiberglass insulation, and in of gypsum board [k=0.05 W/m- °C]. The inside
and outside convection coefficients are 2.0 and 7.0 Btu/h ft2 . °F, respectively. The
outside air temperature is 20°F, and the inside temperature is 72°F. Calculate the
overall heat-transfer coefficient for the wall, the R value, and the heat loss per unit
area.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8ce12206-0bb7-46bb-8e17-d7d27017d736%2Fb0dafe8d-bc60-4a9e-b7c3-e36244455e3b%2Fzx1b8zb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2-13 A certain building wall consists of 6.0 in of concrete [k =1.2 W/m °C], 2.0 in of
fiberglass insulation, and in of gypsum board [k=0.05 W/m- °C]. The inside
and outside convection coefficients are 2.0 and 7.0 Btu/h ft2 . °F, respectively. The
outside air temperature is 20°F, and the inside temperature is 72°F. Calculate the
overall heat-transfer coefficient for the wall, the R value, and the heat loss per unit
area.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 2 images
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The