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Review

Potential Phase Change Materials in Building Wall Construction—A Review

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The National Centre for Building and Construction Technology, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia
2
Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Würzburg, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Antonio Caggiano
Materials 2021, 14(18), 5328; https://doi.org/10.3390/ma14185328
Received: 3 August 2021 / Revised: 5 September 2021 / Accepted: 10 September 2021 / Published: 15 September 2021
(This article belongs to the Special Issue Energy in Construction and Building Materials)
Phase change materials (PCMs) are an effective thermal mass and their integration into the structure of a building can reduce the ongoing costs of building operation, such as daily heating/cooling. PCMs as a thermal mass can absorb and retard heat loss to the building interior, maintaining comfort in the building. Although a large number of PCMs have been reported in the literature, only a handful of them, with their respective advantages and disadvantages, are suitable for building wall construction. Based on the information available in the literature, a critical evaluation of PCMs was performed in this paper, focusing on two aspects: (i) PCMs for building wall applications and (ii) the inclusion of PCMs in building wall applications. Four different PCMs, namely paraffin wax, fatty acids, hydrated salts, and butyl stearate, were identified as being the most suitable for building wall applications and these are explained in detail in terms of their physical and thermal properties. Although there are several PCM encapsulation techniques, the direct application of PCM in concrete admixtures is the most economical method to keep costs within manageable limits. However, care should be taken to ensure that PCM does not leak or drip from the building wall. View Full-Text
Keywords: phase change materials (PCMs); paraffin; fatty acid; hydrate salts; butyl stearate; encapsulation phase change materials (PCMs); paraffin; fatty acid; hydrate salts; butyl stearate; encapsulation
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MDPI and ACS Style

Kurdi, A.; Almoatham, N.; Mirza, M.; Ballweg, T.; Alkahlan, B. Potential Phase Change Materials in Building Wall Construction—A Review. Materials 2021, 14, 5328. https://doi.org/10.3390/ma14185328

AMA Style

Kurdi A, Almoatham N, Mirza M, Ballweg T, Alkahlan B. Potential Phase Change Materials in Building Wall Construction—A Review. Materials. 2021; 14(18):5328. https://doi.org/10.3390/ma14185328

Chicago/Turabian Style

Kurdi, Abdulaziz, Nasser Almoatham, Mark Mirza, Thomas Ballweg, and Bandar Alkahlan. 2021. "Potential Phase Change Materials in Building Wall Construction—A Review" Materials 14, no. 18: 5328. https://doi.org/10.3390/ma14185328

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