# Heat Transfer by Conduction through a Plane Wall

Written by Jerry Ratzlaff on . Posted in Thermodynamics

## Heat Transfer by Conduction through a Plane Wall Formula

 $$\large{ Q_c = \frac {- k \; A_c \; \left( T_2 \;-\; T_1 \right) } { l } }$$

### Where:

$$\large{ Q_c }$$ = heat transfer by conduction

$$\large{ A_c }$$ = area cross-section

$$\large{ T_1 }$$ = temperature of one surface of the wall

$$\large{ T_2 }$$ = temperature of the other surface of the wall

$$\large{ k }$$ = thermal conductivity

$$\large{ l }$$ = thickness of material