Thermal effusivity

From Wikipedia, the free encyclopedia

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.^[1]

$e = {(k\rho c_p)}^{1/2}$

Here, k is the thermal conductivity, $ρ$ is the density and $c p$ is the specific heat capacity. The product of $ρ$ and $c p$ is known as the volumetric heat capacity.