Convection is the transfer of heat by air, water, or any other substance that passes over an object, the surface having a higher temperature than the one passing over it.
- Abbreviated as CONVN
\(Q = h A \left( T_h \;-\; T_c \right) \)
\(Q\) = heat transfer
\(h\) = heat transfer coefficient
\(A\) = cross sectional area
\(T_h\) = higher temperature
\(T_c\) = cooler temperature