# Convective Heat Transfer

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Convective heat transfer, abbreviated as $$\dot {Q}$$, is the transfer of heat by bulk movement and mixing from one place to another of liquids or gasses.

### Convective Heat Transfer Formula

$$\large{ \dot {Q} = h_c \; A \left( T_s \; - \; T_a \right) }$$

Where:

$$\large{ \dot {Q} }$$ = heat transfer per unit time

$$\large{ A }$$ = heat transfer area of the surface

$$\large{ h_c }$$ = heat transfer coefficient

$$\large{ T_a }$$ = air temperature

$$\large{ T_s }$$ = surface temperature

Tags: Equations for Heat