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Modeling PCM in EP and its thermal conductance

In EnergyPlus, in the MaterialProperty:PhaseChange (MP:PC) module, we are able to set a coefficient for a linear thermal conductivity.

In the MaterialProperty:VariableThermalConductivity (MP:VTC) module we are able to set a more detailed thermal conductivity graph.

My question is, would the MP:VTC take precedence over the MP:PC module to determine what the conductivity of a PCM is at any particular temperature?

Is the MP:PC conductivity field ignored if there is a variable conductivity specified and linked to the same PCM?

m.almulla's avatar
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m.almulla
asked 2019-02-22 03:01:40 -0500
__AmirRoth__'s avatar
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__AmirRoth__
updated 2019-02-23 11:10:58 -0500
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I was just looking into this, and yes, MP:VTC does take precedence over MP:PC to determine the conductivity of a PCM. This is mentioned in the Energyplus.idd file. Hopefully you have already found this out, but including this answer here just in case, for future reference.

gokul's avatar
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gokul
answered 2020-02-20 14:38:42 -0500
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