Dynamic thermal simulation of a PCM lined building with Energy Plus

Thermal transmittance of the building fabric plays a significant role in building heat transfer. As the thermal transmittance value decreases, building heat losses and gains through building fabric reduces. In addition to the thermal transmittance, heat storage in the building fabric either in sensible or latent form has an important effect on indoor temperature. The objective of this work is to investigate the effect of temperature reduction capacity of a PCM lining which is applied to a simple building under the weather conditions of Cyprus. Dynamic thermal simulations are carried for the simple building and it is found that by application of 15 mm PCM lining temperature reductions achived up to 1.2 oC without supplying any means of mechanical ventilation or cooling. It is also found that for the indoor temperatures in the band of 26 oC- 30 oC PCM lined building has always less hours exceeding a temperature value than a building having no PCM lining.