# Heat Convection

Written by Jerry Ratzlaff. Posted in Thermodynamics

Heat convection (one of three ways to heat transfer: conduction, convection and radiation) is the flow of heat through currents within a fluid (liquid or gas).

## formula

$$Q = h A \Delta T$$

$$Q = h A \left( T_h \;-\; T_c \right)$$

Where:

$$Q$$ = heat conversion or transfer

$$h$$ = heat transfer coefficent

$$A$$ = cross sectional area

$$\Delta T$$ = temperature differential

$$T_h$$ = higher temperature

$$T_c$$ = cooler temperature