Heat Transfer Formula 

Heat transfer is all about the transfer of heat from one point to another. If we consider any system which will be at higher temperature compared to surroundings, there will be        transfer of heat from system to the surrounding

 

 Q= m x c x Δ T

Where m is the mass
           C is the specific heat and
           Δ T is the temperature difference in K

There are three types of Heat transfer 

conduction

convection

radiation

Heat transfer (Q) by Conduction formula is given by

Where k is the thermal conductivity of the material

           A is the cross sectional area

           T_Hot is the higher temperature

           T_Cold is the cooler temperature

           t is the time taken

           d is the thickness of the material

Heat transfer by Convection is given by
Where H_c is the heat transfer coefficient

The Heat transfer by radiation is given by
Here σ is the Stefan Boltzmann Constant

Heat transfer is usually expressed in Joules. Heat transfer formula is used in problems to find the heat transfer taking place for any given material

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