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Consider a plane composite wall that is composed of two materials of thermal conductivity k, =0.09 W/m -K and ka = 0.03 W/m-K and thicknesses L, =8 mm and L, =16 mm . The %3D %3D contact resistance at the interface between the two materials is known to be 0.30 m²-K/W. Material A adjoins a fluid at 200°C for which h=10W/m² - K, and material B adjoins a fluid at 40°C for which h=20 W/m² ·K.

Consider a plane composite wall that is composed of two materials of thermal conductivity k, =0.09 W/m -K and ka = 0.03 W/m-K and thicknesses L, =8 mm and L, =16 mm . The %3D %3D contact resistance at the interface between the two materials is known to be 0.30 m²-K/W. Material A adjoins a fluid at 200°C for which h=10W/m² - K, and material B adjoins a fluid at 40°C for which h=20 W/m² ·K.

Elements Of Electromagnetics
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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(a) What is the rate of heat transfer through a wall that is 2 m high by 2.5 m wide?
(b) Sketch the temperature distribution.

Consider a plane composite wall that is composed of two materials of thermal conductivity k, = 0.09 W/m · K and ka = 0.03 W/m·K and thicknesses L =8 mm and L, =16 mm . The %3D contact resistance at the interface between the two materials is known to be 0.30 m²-K/W. Material A adjoins a fluid at 200°C for which h=10W/m² - K, and material B adjoins a fluid at 40°C for which h=20 W/m² · K.
Transcribed Image Text:Consider a plane composite wall that is composed of two materials of thermal conductivity k, = 0.09 W/m · K and ka = 0.03 W/m·K and thicknesses L =8 mm and L, =16 mm . The %3D contact resistance at the interface between the two materials is known to be 0.30 m²-K/W. Material A adjoins a fluid at 200°C for which h=10W/m² - K, and material B adjoins a fluid at 40°C for which h=20 W/m² · K.
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