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Modes Of Heat Transfer : Conduction Convection And Radiation & Their Difference

heat transfer

Modes Of Heat Transfer-

Conduction-

It is the mode of heat transfer particularly in solids and also for liquid at rest. In this mode of heat transfer, the heat transfers from one atom to its neighbouring atom through molecular vibrations. At the molecular level, First heat energy of a higher energy level molecule converts to vibrating kinetic energy and this kinetic energy is transferred to neighbouring atoms and so on. again process repeats until the temperature difference between two neighbouring atoms is zero.

Heat Transfer

Also Read: What Is Heat Exchanger? Types Of Heat Exchanger

Convection:

This mode of heat transfer particularly occurs in fluids in motion. That is in both liquids and gases that are in motion. This mode of heat transfer occurs due to the transfer of energy through the bulk mass.
In detail whenever there is a temperature difference in a fluid, density difference occurs and motion of fluid starts as lower density fluid attempts to reach the top of the fluid. During this motion mass and energy transfer occurs thus heat transfer takes place.

heat transfer

Radiation:

In this mode, heat can transfer even through a vacuum. Heat transfer occurs as quantum packets of light energy. This is the mode by which we receive solar energy from the sun.

Difference Between Conduction, Convection And Radiation-

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Related Topics
  • conduction
  • convection
  • heat transfer
  • heat transfer modes
  • modes of heat transfer
  • radiation
Vikas Shukla

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