Effects of Phase Change Materials on heat flows through double skin facades

Authors

  • Thomas Wüest Lucerne University of Applied Sciences and Arts, Institute of Civil Engineering IBI
  • Lars O. Grobe Lucerne University of Applied Sciences and Arts, Institute of Civil Engineering IBI
  • Andreas Luible Lucerne University of Applied Sciences and Arts, Institute of Civil Engineering IBI

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DOI:

https://doi.org/10.7480/jfde.2021.1.5408

Published

2021-04-06

Issue

Vol. 9 No. 1 (2021): Special Issue Powerskin 2021

Section

Articles

License

Copyright (c) 2021 Thomas Wüest, Lars O. Grobe, Andreas Luible

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors or their institutions retain copyright to their publications without restrictions.

How to Cite

Effects of Phase Change Materials on heat flows through double skin facades. (2021). Journal of Facade Design and Engineering, 9(1), 17-30. https://doi.org/10.7480/jfde.2021.1.5408

Keywords:

thermal storage, passive solar façade, Trombe wall, Phase Change Materials, Solar Energy Balanced Façade

Abstract

The potential of exemplary organic and inorganic Phase Change Materials (PCMs) as façade integrated storage is tested. The impact of two PCMs on heat flows is assessed in comparison with water and concrete. The simulation-study employs a transient Modelica simulation model of a test cell featuring the Solar Energy Balanced Façade (SEBF). It is shown that, when compared to water, PCMs of identical volume change the seasonal energy balance in winter and summer by only ± 4%. Other than water, the PCMs maintain this effect even if the storage volume decreases. Due to spatial constraints, this can support the integration of thermal storage in façade design considerably. Preliminary results indicate that designing thermal storage in façades with PCMs must not only consider the latent heat storage capacity, but also take into account the combined effects of latent heat capacity, melting point, conductivity, and dead load. The application of PCMs promises to foster the integration of the technology of SEBF into façades, but the necessary deliberate selection of, and design with, PCMs requires further research.

Author Biography

  • Thomas Wüest, Lucerne University of Applied Sciences and Arts, Institute of Civil Engineering IBI

    CC Facade and Metal Engineering

    Senior Research Associate

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