Phase Change Material Blind System for Double Skin Façade Integration: System Development and Thermal Performance Evaluation

Li, Yilin; Darkwa, Jo; Kokogiannakis, Georgios; Su, Weiguang

Abstract

Double skin facades (DSFs) are often applied as energy reducing elements in modern buildings, but do experience overheating problems in warm seasons which may contribute to increase in cooling loads. There are currently various thermal management devices being used in DSF but have limitations such as secondary thermal transmittance and low energy storage capacity. In this paper, a novel laminated composite phase change material (PCM) blind system with high thermal energy storage capacity has been developed and evaluated in a typical DSF building. The results showed that the integrated PCM blind system was able to keep the average air temperature in the DSF below 35 o C during the monitored period in summer and showed no significant increase as compared with the ambient temperature. The surface temperature of the inner skin of the DSF was also reduced up to about 2.9 o C as compared with the external skin surface temperature thus reducing heat transfer into the building. By using validated numerical models, the PCM blind was found to perform thermally better than a conventional aluminium blind. Finally, design and operational parameters of the PCM

Citation

Li, Y., Darkwa, J., Kokogiannakis, G., & Su, W. (2019). Phase Change Material Blind System for Double Skin Façade Integration: System Development and Thermal Performance Evaluation. Applied Energy, 252, 1-17. https://doi.org/10.1016/j.apenergy.2019.113376

• Journal Article Type: Article
• Acceptance Date: May 18, 2019
• Online Publication Date: Jun 6, 2019
• Publication Date: Oct 15, 2019
• Deposit Date: May 21, 2019
• Publicly Available Date: Jun 7, 2020
• Journal: Applied Energy
• Print ISSN: 0306-2619
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 252
• Article Number: 113376
• Pages: 1-17
• DOI: https://doi.org/10.1016/j.apenergy.2019.113376
• Keywords: Double skin façade; PCM; System development; Thermal performance evaluation
• Public URL: https://nottingham-repository.worktribe.com/output/2075012
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0306261919310505
• Additional Information: The short version of the paper was presented at ICAE2018, Aug 22-25, Hong Kong. This paper is a substantial extension of the short version of the conference paper. *Corresponding author: Yilin Li