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Enhancing thermal performance of buildings through macro-encapsulated PCM integration in wall and roof.

Number: 0036

Author(s) : HO LEE S., SHAO Y., LIU M., SAMAN W., BOSTROM M.

Summary

This paper presents a theoretical investigation of the thermal performance of buildings in the Australian climate by incorporating macro-encapsulated phase change materials (PCMs) as additional layers in walls and roofs. The study aims to evaluate the effectiveness of PCM layers in reducing energy demand for heating and cooling in buildings by analysing the relationship between PCM melting temperatures, PCM liquid fraction, outdoor air temperature, and demand reduction. The investigation explores various scenarios involving PCM layers applied to walls, roofs, and both walls and roofs, while considering different PCM melting temperatures and insulation levels of the buildings. The findings demonstrate that the maximum demand reduction in heating and cooling can be achieved when the PCM melting temperature is approximately 1-2°C higher than the heating and cooling set temperature, respectively. Therefore, the selection of PCM melting temperature should be climate-dependent, considering the location of the building. Furthermore, incorporating PCM layers in the roof leads to higher demand reduction compared to wall placement. Overall, the findings demonstrate the performance of the PCM layer and its effectiveness as a component in improving building thermal inertia. By utilizing the optimum PCM melting temperature, the study significantly contributes to enhancing energy efficiency and promoting sustainable building design and operation.

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Pages: 11 p.

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Details

  • Original title: Enhancing thermal performance of buildings through macro-encapsulated PCM integration in wall and roof.
  • Record ID : 30032388
  • Languages: English
  • Subject: Technology
  • Source: 14th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings:  Paris France, May 29-31, 2024.
  • Publication date: 2024/05/31
  • DOI: http://dx.doi.org/10.18462/iir.pcm.2024.0036

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