SENSITIVITY ANALYSIS OF LAYERED WALL SYSTEMS UTILIZING SUSTAINABLE COMPOSITES INCORPORATING MICRO-ENCAPSULATED PCMS

Date

2023-11-24

Author

Özdemir, Hatice Deniz

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It is crucial to reduce the energy demand in buildings in order to slow down the rate of global warming and become more resilient against energy crises. In order to accomplish this, both the composite development studies that lower energy demand by using phase change material (PCM) incorporated waste materials and the parameter research that have the biggest impact on energy demand in buildings are speeding up. In light of these demands, this research is intended to identify the most critical parameters for a wall with PCM with different orientations in Ankara, Türkiye, and develop microencapsulated phase change material (MPCM) incorporated fuel gas desulfurisation gypsum (FGDG) and commercial plaster composites for building applications. After the development of physical samples of the composites, the mechanical, thermal and microstructural properties are characterised. The sensitivity analysis results show that regardless of the orientation of the wall, the melting temperature of PCM is the most important parameter for both summer and winter seasons. In this context, adding PCM with a suitable melting temperature to mortar and/or plaster materials that can be applied to the interior of the wall might be an appropriate solution for increasing wall performance. Considering the mechanical and thermal characteristics of the developed composites, it is concluded that they are technically suitable for use in wall applications.

Subject Keywords

Microencapsulated phase change material (MPCM), Fuel gas desulfurization gypsum (FGDG), Gypsum, Finite difference method (FDM), Global sensitivity analysis (GSA)

URI

https://hdl.handle.net/11511/107716

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Graduate School of Natural and Applied Sciences, Thesis