Thermal effusivity

Thermal effusivity

In Thermodynamics, the thermal effusivity of a material is defined as the square root of the product of the material's thermal conductivity and its volumetric heat capacity. [http://www.evitherm.org/default.asp?ID=277]

:e = {(k ho c_p)}^{1/2}

Here, k is the thermal conductivity, ho is the density and c_p is the specific heat capacity. The product of ho and c_p is known as the volumetric heat capacity.

A material's thermal effusivity is a measure of its ability to exchange thermal energy with its surroundings.

ee also

* thermal inertia
* thermal diffusivity
* heat capacity
* specific heat capacity
* heat equation
* thermal conductivity

References

External links

* [http://www.evitherm.org/default.asp?ID=277 A reference on various thermal stuff]


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