Three types of heat transfer

What are the three types of heat transfer ?



This short review gives the reader an overview of the three types of heat transfer: Conduction, Conduction and Radiation.


Introduction to the three types of heat transfer


Heat is transferred via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation).

Heat is usually transfered in a combination of these three types and seldomly occurs on its own.

For example, the thermal environment of a building is influenced by heat fluxes through the ground (conduction), and the building envelope (mostly convection and radiation).

Convection

three types of heat transfer

Convection is heat flux through liquids and gases.

gSKIN® Heat Flux Sensors can measure convective heat flux (see picture on the left).

Examples of convective heat flux are:
Feeling much colder when it is windy.
Feeling much colder in water of 25°C than in air of 25°C.
Sensing principle in heat flux based mass flow sensors. Learn more

Conduction

Conduction is heat flux through solid materials.

gSKIN® Heat Flux Sensors can measure conductive heat flux (see picture on the left).

Examples of conductive heat flux are:
Touching a hot cup of coffee
Thermal influences in precision instruments. Learn more
Measurement of heat output from chemical reactors. Learn more

three types of heat transfer

Radiation

three types of heat transfer

Radiation is heat flux through electromagnetic waves.

gSKIN® Heat Flux Sensors can measure radiative heat flux (see picture on the left).

Examples of radiative heat flux are:
Feeling hot when standing close to fire.
Measurement of solar power. Learn more

Tired of reading ? Discover our videos about heat transfer !


  • Convective heat fluxes: measurements with the gSKIN sensor available here.
  • Heat flux explained: Why felt and measured temperature are not the same available here.

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