THERMALDIFFUSIVITY
The THERMALDIFFUSIVITY function returns the thermal diffusivity for the specified fluid defined as
alpha = k / (rho*Cp)
where
k is the thermal conductivity
rho is the density
Cp is the specific heat
The units of thermal diffusivity are m^2/sec or ft^2/hr depending on whether EES is configured in SI units or English units.
Examples:
$Load Incompressible
$UnitSystem SI C kPa mass
alpha_1=thermaldiffusivity(Air,T=100 [C], P=100 [kPa])
alpha_2=thermaldiffusivity(Steam,T=100 [C],x=0)
alpha_3=thermaldiffusivity(Dowtherm_A,T=25 [C])
{Solution:
alpha_1=0.00003281 [m^2/s]
alpha_2=1.646E-07 [m^2/s]
alpha_3=8.234E-08 [m^2/s]
}
Thermophysical Property Functions