(Picture of problem attached)A wood wall 2.5 m (» 8 ft) ´ 7 m (» 23 ft) ´ 2.5 cm (» 1 in) thick has thermal conductivity k = 0.1 W/Km. A. Find the R-value of the wall (in SI units, of course).B. If the inside and outside temperatures are 20°C and 5°C respectively, find the heat flow in watts passing through the wall.C. Now include the R-values of the air layers inside (Rin = 0.12 m^2 K/W) and outside (Rout = 0.06 m^2 K/W) the wall. Find the new heat flow. (Note: Just add all the R’s.)D. Add 10 cm of fiberglass (kf = 0.05 W/Km) to the wall. Find the R-value of the fiberglass layer.E. Find the heat flow through the wall in Watts, including air, wood, and fiberglass. Prob Set 9.pdf9.1.pdf17.1早296,1%91 A wood wall 2.5 m (÷8 ft) × 7 m (× 23 ft) × 2.5 cm (= 1 in) thick has thermal conductivityk=01 W/Km.A. Find the R-value of the wall (in SI units, of course).B. If the inside and outside temperatures are 20°C and 5°C respectively, find the heat flow in watts passingthrough the wall.C. Now include the R-values of the air layers inside (Rm=0,12 m²K/W) and outside (Roat=0,06 m²K/W) thewall. Find the new heat flow. (Note: Just add all the R's.)D. Add 10 cm of fiberglass (k= 0.05 W/Km) to the wall. Find the R-value of the fiberglass layer.E. Find the heat flow through the wall in Watts, mcluding au, wood, and fiberglass.

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Answered: A wood wall 2.5 m ( 8 ft) x 7 m ( 23…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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(Picture of problem attached)

A wood wall 2.5 m (» 8 ft) ´ 7 m (» 23 ft) ´ 2.5 cm (» 1 in) thick has thermal conductivity k = 0.1 W/Km.

A. Find the R-value of the wall (in SI units, of course).

B. If the inside and outside temperatures are 20°C and 5°C respectively, find the heat flow in watts passing through the wall.

C. Now include the R-values of the air layers inside (Rin = 0.12 m^2 K/W) and outside (Rout = 0.06 m^2 K/W) the wall. Find the new heat flow. (Note: Just add all the R’s.)

D. Add 10 cm of fiberglass (kf = 0.05 W/Km) to the wall. Find the R-value of the fiberglass layer.

E. Find the heat flow through the wall in Watts, including air, wood, and fiberglass.

Prob Set 9.pdf
9.1.pdf
17.1
早2
96,1%
91 A wood wall 2.5 m (÷8 ft) × 7 m (× 23 ft) × 2.5 cm (= 1 in) thick has thermal conductivityk=01 W/Km.
A. Find the R-value of the wall (in SI units, of course).
B. If the inside and outside temperatures are 20°C and 5°C respectively, find the heat flow in watts passing
through the wall.
C. Now include the R-values of the air layers inside (Rm=0,12 m²K/W) and outside (Roat=0,06 m²K/W) the
wall. Find the new heat flow. (Note: Just add all the R's.)
D. Add 10 cm of fiberglass (k= 0.05 W/Km) to the wall. Find the R-value of the fiberglass layer.
E. Find the heat flow through the wall in Watts, mcluding au, wood, and fiberglass.

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