A wall of 3 m height and 4 m width having an insulation layer is shown in the figure. The thickness of the wall is Lwall=0.4 m and the thickness of the insulation material is Lins=0.05 m. The thermal conductivities of the wall and the insulation are respectively kwall=0.85 W/mK and kins=0.03 W/mK, while the inner and outer heat transfer coefficients are respectively h;=5 W/m²K and ho=15 W/m²K. If the inner ambient temperature T,i =20°C and the heat transfer rate across the wall is Q=150 W, determine the outer ambient temperature, To,0.

A wall of 3 m height and 4 m width having an insulation layer is shown in the figure. The thickness of the wall is Lwall=0.4 m and the thickness of the insulation material is Lins=0.05 m. The thermal conductivities of the wall and the insulation are respectively kwall=0.85 W/mK and kins=0.03 W/mK, while the inner and outer heat transfer coefficients are respectively h;=5 W/m²K and ho=15 W/m²K. If the inner ambient temperature T,i =20°C and the heat transfer rate across the wall is Q=150 W, determine the outer ambient temperature, To,0.

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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