what is heat transfer?|different modes of heat transfer|heat transfer and thermodynamics|mech acadamy

                                            

What is heat transfer?

Heat transfer, also referred to simply as heat, is the movement of thermal energy from one thing to another thing of different temperature. ... There are three different ways the heat can transfer: conduction (through direct contact), convection (through fluid movement), or radiation (through electromagnetic waves).

What is thermodynamics?

Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy. In particular, it describes how thermal energy is converted to and from other forms of energy and how it affects matter.

Difference between heat transfer and thermodynamics?

Thermodynamics deals with. Heat and its conversion into work that means how heat will be converted into work.

Heat transfer deals with particularly the transfer of heat from one physical body to another through conduction, convection, radiation

MODES AND MECHANISMS OF HEAT TRANSFER

Modes of heat transfer:

There are three types of heat transfer-

Conduction

Convection

Radiation

Mechanisms of heat transfer are

Conduction: Conduction is heat transfer by means of molecular agitation within a material without any motion of the material as a whole.

Convection: Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it.

Radiation

Radiation is heat transfer by electromagnetic waves such as visible light, UV and infrared radiation.

Radiation depends upon  Area of surface and forth power of temperature

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