Mousazadeh Aghoei, Mojtaba, Astanbous, Atieh, Yeganeh Khaksar, Reza, Moezzi, Reza, Behzadian, Kourosh ORCID: https://orcid.org/0000-0002-1459-8408, Annuk, Andres and Gheibi, Mohammad (2024) Phase change materials (PCM) as a passive system in the opaque building envelope: A simulation-based analysis. Journal of Energy Storage, 101A.

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Abstract

The ongoing energy crisis is a critical issue in both scientific and managerial spheres within the building and
construction industry. While low-cost strategies to reduce energy consumption offer advantage to stakeholders,
this study primarily advocates the use of phase change materials (PCM) to enhance the management of cooling
and heating loads in buildings. Using DesignBuilder simulations, this research is demonstrated on Iran as a case
study representing a developing country. The findings reveal that integrating PCM into buildings can reduce
energy consumption by approximately 6 %. Furthermore, a quantitative comparison of building efficiency based
on Energy Use Intensity (EUI) calculations highlights the benefs of alternative materials. Specifically, a 5.6 %
reduction in EUI was observed with PCMs while nano-paints contributed a 1.8 % reduction. Although these
reductions may seem modest compared to other techniques, they represent significant progress toward green
building objectives in both developed and developing nations. The case study, conducted in a region experiencing
four seasons, highlights the substantial potential of PCM systems for managing both cooling and heating
energy demands. Notably, the reciprocal performance improvement of PCMs sets them apart from conventional
systems that typically target one aspect of energy management. The research also includes comprehensive
thermodynamic and heat transfer analyses, economic assessments, sustainability evaluations, and exergy analysis.
These analyses demonstrate that the PCM scenario is more favorable compared to other strategies, such as
no thermal insulation and the use of nano-paints. Furthermore, this study emphasizes the alignment of the
proposed PCM integration with Sustainable Development Goal 7 (Affordable and Clean Energy Targets). The
results provide a compelling argument for the adoption of PCM technology by highlighting its role in improving
energy efficiency, supporting sustainable development, and addressing the energy crisis effectively.

Item Type:	Article
Identifier:	10.1016/j.est.2024.113625
Subjects:	Construction and engineering > Civil and environmental engineering
Depositing User:	Kourosh Behzadian
Date Deposited:	23 Sep 2024 10:04
Last Modified:	04 Nov 2024 11:20
URI:	https://repository.uwl.ac.uk/id/eprint/12707

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