Fully integrated numerical design tool to assess thethermal performance of phase change materials (PCM) inthe built environment
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https://hdl.handle.net/10642/8061Utgivelsesdato
2020Metadata
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Originalversjon
Rubinetti D, Weiss DA, Kraniotis D, Chaudhuri A. Fully integrated numerical design tool to assess thethermal performance of phase change materials (PCM) inthe built environment. IOP Conference Series: Earth and Environmental Science (EES). 2020;410 https://dx.doi.org/10.1088/1755-1315/410/1/012114Sammendrag
Thermal energy storage with phase change materials (PCM) is a promising candidate to
promote resource sustainability in buildings. The intelligent selection and usage of a PCM within the
structure of a building poses a challenging engineering task due the highly dynamic nature of occurring
heat transfers. This work features a step-by-step FEM modeling guideline to assist the design of building
structures by means of a 1D heat conduction scheme. The phase change functionality is based on the
apparent heat capacity method and extended by ordinary differential equations to account for the thermal
hysteresis of materials with different melting and freezing temperatures. The set of equations is solved
alongside with logical expressions representing a thermostat functionality to assess the external energy
demand. Two proof-of-concept examples for PCM usage in typical Swiss and Greek wall structures are
given.