[esp-r] Phase change materials properties

[Juanita Solano Guzmán]

Hello to All,

I am currently trying to figure out the meaning of the input values and
units when defining a phase-change material.

*- Melting temperature degC:* no questions
*- Solidification temperature degC:* no questions
*- Thermal conductivity in the solid phase J/kg: *In the ESPr interface the
thermal conductivity is shown to have units of J/kg, I assume this is a
mistake?
*- Thermal conductivity in the liquid phase J/kg: *same as above
*- Specific heat  J/kg.K: *no questions
*- Latent heat of member a J/kg.K^2 and b J/kg.K:* In a previous post I
read that a and b, represent the values of a linear function y = ax + b.
Woud this linear function correspond to the effective heat capacity given
by:

C_eff = L/(Te-To) + Cp(T=To)

L - latent heat
Te - Offset temperature
To - Onset temperature
Cp - specific heat at the onset temperature

in that case, would "a" be equal to L/(Te-To) and "b" to Cp(T=To)?  And
then "x" in the linear function corresponds to the temperature?

Thank you in advance for your help,

Best Regards,
Juanita
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