# Heat Flux

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Heat flux, abbreviated as Q", also called thermal flux, is the heat flow rate transfer through a given surface, per unit surface.

## Heat Flux Formula

 $$\large{ Q" = \frac { Q_f } { A } }$$

### Where:

$$\large{ Q" }$$ = heat flux

$$\large{ A }$$ = area

$$\large{ Q_f }$$ = heat flow rate

Tags: Equations for Heat