ENERGYPLUS MODEL OF NOVEL PCM COOLING SYSTEM VALIDATED WITH INSTALLED SYSTEM DATA
An innovative hybrid application of Phase Change
Material (PCM) has been modelled in EnergyPlus, with
DesignBuilder, and validated with results from a fullyfunctioning
installation in a London school. The model
was used to evaluate performance, test alternative
control strategies and quantify energy savings. The
modelling method, utilizing a modified chilled ceiling
with integrated PCM, effectively mimicked actual
system operation and was validated to have an
acceptable error rate. Energy savings in passive and
active discharge modes were found to be 36% and 21%,
depending on different control schemes and seasons.
Greater energy savings may be possible with a refined
ASHRAE, 2002. Measurement of Energy and Demand Savings
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