The physical act of the transfer of thermal energy between two systems by the dissipation of heat is known as heat transfer. The three modes of heat transfer are conduction, convection and radiation. Let us look at the differences between all the three heat transfer methods to understand them better.
Difference Between Conduction Convection and Radiation
|In conduction, the heat transfer takes place between objects by direct contact.||In convection, the heat transfer takes within the fluid.||In radiation, the heat transfer occurs through electromagnetic waves without involving particles.|
|The heat transfer takes place due to the difference in temperature.||The heat transfer occurs due to the difference in density.||The heat transfer occurs in all object with a temperature greater than 0 K.|
|The heat transfer in conduction is slow||The heat transfer in convection is faster.||The heat transfer in radiation is fastest.|
|The heat transfer occurs through a heated solid object.||The heat transfer occurs through intermediate objects. For example, heat transfer between air and water.||The heat transfer occurs through electromagnetic waves.|
|It does not follow the law of reflection and refraction.||It does not follow the law of reflection and refraction.||It follows the law of reflection and refraction.|
The difference between the modes of heat transfer should be understood clearly as these are an important topic in thermodynamics. To Know more about conduction, convection and radiation Visit BYJU’S.