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The inner and outer surfaces of a 8 m x 5 m brick wall of thickness 25 cm and thermal conductivity of k = 0.45 W/m-°C are maintained at temperatures of 18°C and 55°C, respectively. %3D Outside Inside Brick wall 25 cm 55 °C 18 °C Questions : 1- What is the mode of heat transfer in the above case 2- Determine the rate of heat transfer through the wall, in W 3- Determine the amount of heat loss, in kJ, through the wall over a period of 18 hours 4- Indicate whether the direction of heat transfer is from inside to outside or outside to

The inner and outer surfaces of a 8 m x 5 m brick wall of thickness 25 cm and thermal conductivity of k = 0.45 W/m-°C are maintained at temperatures of 18°C and 55°C, respectively. %3D Outside Inside Brick wall 25 cm 55 °C 18 °C Questions : 1- What is the mode of heat transfer in the above case 2- Determine the rate of heat transfer through the wall, in W 3- Determine the amount of heat loss, in kJ, through the wall over a period of 18 hours 4- Indicate whether the direction of heat transfer is from inside to outside or outside to

Introduction to Chemical Engineering Thermodynamics
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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The inner and outer surfaces of a 8 m x 5 m brick wall of thickness 25 cm and thermal conductivity of k = 0.45 W/m-°C are maintained %3D at temperatures of 18°C and 55°C, respectively. Outside Inside Brick wall 25 cm 55 °C 18 °C Questions : 1- What is the mode of heat transfer in the above case 2- Determine the rate of heat transfer through the wall, in W 3- Determine the amount of heat loss, in kJ, through the wall over a period of 18 hours 4- Indicate whether the direction of heat transfer is from inside to outside, or outside to inside ? justify your answer
Transcribed Image Text:The inner and outer surfaces of a 8 m x 5 m brick wall of thickness 25 cm and thermal conductivity of k = 0.45 W/m-°C are maintained %3D at temperatures of 18°C and 55°C, respectively. Outside Inside Brick wall 25 cm 55 °C 18 °C Questions : 1- What is the mode of heat transfer in the above case 2- Determine the rate of heat transfer through the wall, in W 3- Determine the amount of heat loss, in kJ, through the wall over a period of 18 hours 4- Indicate whether the direction of heat transfer is from inside to outside, or outside to inside ? justify your answer
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