# Heat Conduction

Heat transfer by conduction is one of four types of to heat transfer: mixing, conduction, convection and radiation. It is the second most efficient form of heat transfer after mixing. It can be abbreviated by Q_{c}. It is the flow of heat between two objects having different temperatures that are in contact with each other.

## Heat Conduction Formula(Eq. 1) \(\large{ Q_c = \frac { k \; A \; \Delta T \; t } {d} }\) (Eq. 2) \(\large{ Q_c = \frac { k \; A \; \left( T_h \;-\; T_c \right) \; t } {d} }\) Where: \(\large{ Q_c }\) = heat transfer by conduction \(\large{ A }\) = area cross section \(\large{ T_c }\) = cooler temperature \(\large{ T_h }\) = higher temperature \(\large{ \Delta T }\) = temperature differential \(\large{ t }\) = time taken \(\large{ k }\) or \(\large{ \lambda }\) (Greek symbol lambda) = thermal conductivity \(\large{ d }\) = thickness of the material |