A 4mx5m wall consists of 3 glass windows of 1.5mx1.0m dimensions. The wall has thickness of 0.125 m and a thermal conductivity of 0.5 W/mK, while the glass windows are 6 mm thick with a thermal conductivity of 1.24 W/mK. The values of Internal and external surface conductance for the wall (including glass) are 8.3 Wim K and 34.4 W/mK, respectively. The internal and external temperatures are 21°C and -30°C, respectively. Calculate the total heat transfer rate through the wall. What percentage of this heat transfer is through the windows?
A 4mx5m wall consists of 3 glass windows of 1.5mx1.0m dimensions. The wall has thickness of 0.125 m and a thermal conductivity of 0.5 W/mK, while the glass windows are 6 mm thick with a thermal conductivity of 1.24 W/mK. The values of Internal and external surface conductance for the wall (including glass) are 8.3 Wim K and 34.4 W/mK, respectively. The internal and external temperatures are 21°C and -30°C, respectively. Calculate the total heat transfer rate through the wall. What percentage of this heat transfer is through the windows?
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
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![A 4mx5m wall consists of 3 glass windows of 1.5mx1.0m dimensions. The wall has
thickness of 0.125 m and a thermal conductivity of 0.5 W/mK, while the glass windows are 6 mm
thick with a thermal conductivity of 1.24 W/mK. The values of Internal and external surface
conductance for the wall (including glass) are 8.3 W/m K and 34.4 W/m²K, respectively. The
internal and external temperatures are 21°C and -30°C, respectively. Calculate the total heat
transfer rate through the wall. What percentage of this heat transfer is through the windows?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2e439e2f-bfb3-431a-bfac-4a3c06cc38b6%2Feea1ca9f-e9e7-4534-a4a6-120abf25e120%2F0xo6db_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A 4mx5m wall consists of 3 glass windows of 1.5mx1.0m dimensions. The wall has
thickness of 0.125 m and a thermal conductivity of 0.5 W/mK, while the glass windows are 6 mm
thick with a thermal conductivity of 1.24 W/mK. The values of Internal and external surface
conductance for the wall (including glass) are 8.3 W/m K and 34.4 W/m²K, respectively. The
internal and external temperatures are 21°C and -30°C, respectively. Calculate the total heat
transfer rate through the wall. What percentage of this heat transfer is through the windows?
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