Abstract
Whole building energy modeling has become extremely important for designers, architects, engineers, and researchers to predict energy performance of buildings. This is particularly important for phase change materials (PCMs) due to their variable properties. For this reason, building energy modeling tools have been developed and validated against different sources of experimental data. However, an IEA Annex 23 surveyed over 250 research publications concluding that the general confidence in currently used numerical models is still too low to use them for designing and code purposes. The objective of this study is to assess the capability of different simulation programs to model the PCMs in building envelope using data from two independent studies using Nano-encapsulated PCMs (Nano-PCM) and shape-stabilized PCMs. The study finds that the investigated PCM models accurately predict the PCM behavior in the building envelope.
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