Discuss the below:
Q: The outer surface of a 0.2m-thick concrete wall is kept at a temperature of -5°C, while the inner surface is kept at 20°C. The thermal conductivity of the concrete is 1.2 W/(m K). Determine the heat loss through a wall 10 m long and 3 m high.
GIVEN
10 m long, 3 m high, and 0.2 m thick concrete wall
Thermal conductivity of the concrete (k) = 1.2 W/(m K)
Temperature of the inner surface (Ti) = 20°C
Temperature of the outer surface (To) = -5°C
ASSUMPTIONS
One dimensional heat flow
The system has reached steadystate
