Difference Between Conduction, Convection, and Radiation
Basis of Comparison |
Conduction |
Convection |
Radiation |
---|---|---|---|
Definition | Conduction is a procedure where heat is transferred between objects through physical contact. | Convection is the type of heat transmission where there is an energy transform within the fluid. | Radiation refers to the process by which heat is transferred between things without direct physical touch. |
Heat transfer | A body or item with a high temperature will transmit heat to one with a low temperature. | A low-density region transmits heat to a high-density location. | Atoms and compounds transmit energy through their spinning and vibrational motions. |
Speed of heat transfer | Slow as compared to convection and radiation. | Faster than conduction but slower than radiation. | Fastest as compared to conduction and convection. |
Temperature effect | Continues until both items’ temperatures are the same. | This heat transfer continues as long as there is a temperature differential. | As long as there is energy to emit, the transmission continues. |
Occurs through | Heat solids. | Fluids or liquids or gases. | Electromagnetic wave |
Cause | Due to a temperature change. | Due to differences in density. | All things produce this phenomenon when the temperature exceeds 0 K. |
Law of reflection and refraction. | Doesn’t follow. | Doesn’t follow. | It follows. |
Factors influencing | Temperature and kinetic energy. | The density of fluids. | Temperature. |
Example | Heating a pan on the burner. | Ice melting. | The light that an incandescent bulb produces. |
Difference Between Conduction, Convection And Radiation
Thermal energy travels from one location to another during heat transmission. All matter transfers heat because atoms and molecules have dynamic and thermal energy by nature. Heat transfer is the flow of heat as a result of a temperature differential between a system and its surroundings. Temperature and heat movement are the basic principles of heat transfer. There are three different kinds of heat transfer depending on the type of medium used to convey heat that is: Conduction, Convection, and Radiation. Conduction is the direct transmission of heat energy and convection is the movement of heat caused by the actual movement of matter, while radiation is the transfer of energy using electromagnetic waves.