Question 1: In your own words, write down the differencesbetween thermodynamic and heat transfer. (3 Marks)Question 2: Estimate the heat loss per square metre of surfacethrough a brick wall 0.5 m thick when the inner surface is at 400K and the outside surface is at 300 K. The thermal conductivityof the brick may be taken as 0.7 W/mK. (2 Marks)Question 3: A furnace is constructed with 0.20 m of firebrick,0.10 m of insulating brick, and 0.20 m of building brick. Theinside temperature is 1200 K and the outside temperature is 330K. If the thermal conductivities are as shown in the figure below,estimate the heat loss per unit area. (5 Marks)1200 K330 KFire brickX=0.20 mInsulatingbrickx=0.10 mOrdinarybrickX=0.20 mk = 1.4k = 0.21k = 0.7(WimK)

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Question 1: In your own words, write down the differences between thermodynamic and heat transfer. (3 Marks) Question 2: Estimate the heat loss per square metre of surface through a brick wall 0.5 m thick when the inner surface is at 400 K and the outside surface is at 300 K. The thermal conductivity of the brick may be taken as 0.7 W/mK. (2 Marks)

Question 1: In your own words, write down the differences between thermodynamic and heat transfer. (3 Marks) Question 2: Estimate the heat loss per square metre of surface through a brick wall 0.5 m thick when the inner surface is at 400 K and the outside surface is at 300 K. The thermal conductivity of the brick may be taken as 0.7 W/mK. (2 Marks)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Show detailed step by step solution. Topic: thermodynamics
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