Thermal Diffusivity

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Thermal diffusivity is a measure of the transient thermal reaction of a material to a change in temperature.

formula

\( \alpha = \frac {k} {p   Q }     \)

Where:

\(\alpha\) (Greek symbol alpha) = heat transfer rate

\(k\) = thermal conductivity constant

\(p\) = density

\(Q \) = specific heat capacity

Solve for:

\( k =   \alpha   p     Q   \)

\( p = \frac {k} {\alpha   Q}     \)

\( Q = \frac {k} {\alpha     p}     \)