Heat is a form of energy which transfers between bodies which are kept under thermal interactions. When a temperature difference occurs between two bodies or a body with its surroundings, heat transfer occurs.
Heat transfer occurs in three modes. Three modes of heat transfer are described below.
Conduction
Convection and
Radiation
Conduction:
In Conduction, heat transfer takes place due to a temperature difference in a body or between bodies in thermal contact, without mixing of mass
Convection:
In convection, heat is transferred to a moving fluid at the surface over which it flows by combined molecular diffusion and bulk flow. Convection involves conduction and fluid flow.
Radiation:
In radiation, heat is transferred in the form of radiant energy or wave motion from one body to another body. No medium for radiation to occur.
Answers & Comments
Answer:
This is the one example of Heat Transfer
(see the picture)
My own definition:
Heat is a form of energy which transfers between bodies which are kept under thermal interactions. When a temperature difference occurs between two bodies or a body with its surroundings, heat transfer occurs.
Heat transfer occurs in three modes. Three modes of heat transfer are described below.
Conduction:
In Conduction, heat transfer takes place due to a temperature difference in a body or between bodies in thermal contact, without mixing of mass
Convection:
In convection, heat is transferred to a moving fluid at the surface over which it flows by combined molecular diffusion and bulk flow. Convection involves conduction and fluid flow.
Radiation:
In radiation, heat is transferred in the form of radiant energy or wave motion from one body to another body. No medium for radiation to occur.