Heat Transfer by Conduction through a Cylindrical Wall

Written by Jerry Ratzlaff on . Posted in Thermodynamics

This calculation determines the heat transfer through a cylinder wall by conduction.

Heat Transfer by Conduction through a Cylindrical Wall formula

 $$\large{ Q_c = \frac { 2 \; \pi \; k \; l \; \left( T_1 \;-\; T_2 \right) } { ln \; \left( \frac {r_2 }{ r_1 } \right) } }$$

Where:

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

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

$$\large{ r_1 }$$ = radius inside diameter (ID)

$$\large{ r_2 }$$ = radius outside diameter (OD)

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

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

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