a) Calculate the rate of heat conduction through house walls that are 13.0 cm thick and that have an average thermal conductivity twice that of glass wool. Assume there are no windows or doors. The surface area of the walls is 120m^2 and their inside surface is at 18.0ºC, while their outside surface is at 5.00ºC. (b) How many 1-kW room heaters would be needed to balance the heat transfer due to conduction?
(a) Calculate the rate of heat
Given:-
The thickness of the house wall is t = 13.0 cm
The wall has an average thermal conductivity twice that of glass wool.
The surface area of the wall is A = 120 m2
The inside surface temperature is Tin= 18.0 oC
The outside surface Temperature is Tout= 5.0oC
Find:-
a) Calculate the rate of heat conduction through house walls
b) How many 1-kW room heaters would be needed to balance the heat transfer due to conduction?
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