[EnergyPlus_Support] Parametric PCM simulations [2 Attachments]

["poly_purple@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

Hi, I'm trying to recreate this study (https://www.researchgate.net/publication/283723280_Energy_performance_of_building_envelopes_integrated_with_phase_change_materials_for_cooling_load_reduction_in_tropical_Singapore) albeit in a different location.

I've modified the E+ example file CondFD1Zone making the melting point parametric as suggested by the study. The results I'm getting though are not what I expect, i.e. I've tried simulating values from 21-34 as the melting point of the PCM and I was expecting energy savings going to around 15-20%, the highest I got was around 10% (which was supposed to be the minimum) and wasn't even the phase change temp I expected (it was too low).

Is it perhaps I did not take into account the formula described at page 4, i.e. how Cp (specific heat capacity is updated in each iteration). I'm not sure how to take this formula into account into a parametric simulation. I'm not even sure what 'node temperature' means.

Thank you in advance!

 

 

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Posted by: poly_purple@xxxxxxxxx

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