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2. The steady state temperature distribution within a 0.2 m thick metal wall of thermal conductivity 1.18 W/m °C is represented by: T = 250 – 2750x²; where 'x' is the position in depth of the wall measured in meter. Tis in °C. The wall is losing heat from distant surface to the ambient air available at 30°C. Calculate: (i) Heat transfer coefficient at the surface (distant) of wall at x = 0.2 m. (ii) Prove that the other surface (entrance of heat) of the wall is insulated. (iii) If the height and width of the plate is 1 and 1.5 m, respectively, find the rate of heat transfer from the wall. Volumetric heat generation rate. (iv)

2. The steady state temperature distribution within a 0.2 m thick metal wall of thermal conductivity 1.18 W/m °C is represented by: T = 250 – 2750x²; where 'x' is the position in depth of the wall measured in meter. Tis in °C. The wall is losing heat from distant surface to the ambient air available at 30°C. Calculate: (i) Heat transfer coefficient at the surface (distant) of wall at x = 0.2 m. (ii) Prove that the other surface (entrance of heat) of the wall is insulated. (iii) If the height and width of the plate is 1 and 1.5 m, respectively, find the rate of heat transfer from the wall. Volumetric heat generation rate. (iv)

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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2. The steady state temperature distribution within a 0.2 m thick metal wall of thermal conductivity 1.18 W/m °C is represented by: T = 250 – 2750x²; where 'x' is the position in depth of the wall measured in meter. Tis in °C. The wall is losing heat from distant surface to the ambient air available at 30°C. Calculate: (i) Heat transfer coefficient at the surface (distant) of wall at x = 0.2 m. (ii) Prove that the other surface (entrance of heat) of the wall is insulated. (iii) If the height and width of the plate is 1 and 1.5 m, respectively, find the rate of heat transfer from the wall. (iv) Volumetric heat generation rate.
Transcribed Image Text:2. The steady state temperature distribution within a 0.2 m thick metal wall of thermal conductivity 1.18 W/m °C is represented by: T = 250 – 2750x²; where 'x' is the position in depth of the wall measured in meter. Tis in °C. The wall is losing heat from distant surface to the ambient air available at 30°C. Calculate: (i) Heat transfer coefficient at the surface (distant) of wall at x = 0.2 m. (ii) Prove that the other surface (entrance of heat) of the wall is insulated. (iii) If the height and width of the plate is 1 and 1.5 m, respectively, find the rate of heat transfer from the wall. (iv) Volumetric heat generation rate.
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