| Issue |
Natl Sci Open
Volume 3, Number 3, 2024
Special Topic: Energy Systems of Low Carbon Buildings
|
|
|---|---|---|
| Article Number | 20230056 | |
| Number of page(s) | 48 | |
| Section | Engineering | |
| DOI | https://doi.org/10.1360/nso/20230056 | |
| Published online | 09 January 2024 | |
REVIEW
Advancements and challenges in enhancing salt hydrate phase change materials for building energy storage: Optimization methodologies and mechanisms
Key Laboratory for Resilient Infrastructures of Coastal Cities (Ministry of Education), College of Civil and Transportation Engineering, Shenzhen University, Shenzhen
518060, China
* Corresponding author (email: h.z.cui@szu.edu.cn)
Received:
7
September
2023
Revised:
22
November
2023
Accepted:
8
January
2024
The application of phase change materials (PCMs) into buildings is a prospective method for mitigating energy consumption in the construction sector. Among the diverse PCM options, salt hydrate PCMs stand out for their superior thermal storage densities, adaptable operating temperature ranges, and cost-effectiveness, rendering them highly attractive for practical engineering applications. However, the utilization of salt hydrates has encountered obstacles, including pronounced supercooling, severe phase separation, and insufficient thermal conductivity, limiting their efficacy in energy storage solutions. In response to these challenges and in pursuit of rendering salt hydrates viable for building energy storage systems, substantial research has been conducted in recent years. This paper offers a comprehensive overview of the strategies devised to address the challenges associated with salt hydrate PCMs, and it also elucidates the corresponding optimization methodologies and bolstering mechanisms, providing a valuable resource for researchers in this field.
Key words: salt hydrates / phase change materials / supercooling degree / phase separation / thermal conductivity / corrosion behavior
© The Author(s) 2024. Published by Science Press and EDP Sciences.
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