Related references
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Summary: With the increase in urbanization and improved living standards, there is a higher demand for energy worldwide. The building sector is a major consumer of energy, accounting for about 40% of total energy consumption and causing environmental impacts. Researchers are challenged to reduce energy consumption without compromising thermal comfort in buildings. Phase change materials (PCMs) have the potential to store and release heat for energy conservation and thermal regulation. Integrating PCMs into building materials can significantly improve thermal comfort and reduce energy consumption. This study reviews the effects of PCM integration into building envelopes and discusses energy savings and economic benefits. It concludes that PCMs integrated into building envelopes such as walls, roofs, ceilings, and windows can lead to energy consumption reduction and improved thermal comfort. Micro/nano encapsulation and shape stabilization techniques show higher thermal performance compared to macro and impregnation techniques. In-situ-polymerization and emulsion polymerization are commonly used encapsulation techniques due to their efficiency and simplicity. PCMs with phase transition temperatures close to ambient conditions are found to be promising for enhancing thermal comfort in buildings.
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Summary: This study evaluates the optimal envelope type and climatic zone for improving building performance using phase change materials (PCM). The results show that PCM has a higher energy saving rate in arid and sub-arid climates, and a lower rate in the Mediterranean climate. PCM is more efficient for cooling in arid climates, and for heating in sub-arid and Mediterranean climates. The environmental and economic analysis indicates that the use of PCM can significantly reduce energy costs and CO2 emissions.
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Y. Qu et al.
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Qudama Al-Yasiri et al.
Summary: This study examined the thermal performance of concrete bricks with different capsule designs under hot summer conditions. The results showed that all PCM based bricks outperformed the reference brick, while the bricks with square cross-section PCM capsules exhibited the best thermal contribution.
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