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Open AccessArticle

Experimental Research on Using Form-stable PCM-Integrated Cementitious Composite for Reducing Overheating in Buildings

1
Centre for Sustainable Infrastructure, Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australian
2
Department of Civil Engineering, Monash University, Melbourne, VIC 3800, Australia
3
The State Key Laboratory of the Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Beijing 100091, China
*
Author to whom correspondence should be addressed.
Buildings 2019, 9(3), 57; https://doi.org/10.3390/buildings9030057
Received: 8 January 2019 / Revised: 21 February 2019 / Accepted: 22 February 2019 / Published: 4 March 2019
(This article belongs to the Special Issue Phase Change Materials of Buildings)
This paper investigates the potential of using form-stable phase change material (FS-PCM) integrated cement mortars in building envelopes to prevent overheating and to improve summer thermal comfort. The FS-PCM integrated cement mortar was applied as the interior surface plastering mortar of a full-scale test hut and compared with identical test huts built on cement plasterboard (OCB) and gypsum plasterboard (GPB). The test huts were exposed to outdoor climatic conditions, and indoor thermal behaviours were continuously monitored throughout the summer period. The effects of PCM in reducing the overheating was analysed by the intensity of thermal discomfort (ITDover) and frequency of thermal discomfort (FTDover) for overheating during the summer days. The comparison between different test huts showed that the application of PCM integrated cement mortars reduced the peak indoor temperature by up to 2.4 °C, compared to GPB and OCB test rooms. More importantly, the analysis of overheating effects revealed that at lower intensive thermal discomfort levels, FS-PCM largely reduces FTDover. As the intensity of thermal discomfort increases, the reduction in ITDover becomes dominant. At highly intensive thermal discomfort levels, the reduction was neither apparent in the intensity of thermal discomfort nor the period of discomfort. View Full-Text
Keywords: phase change materials (PCMs); overheating; summer thermal comfort; cementitious composite; form-stable PCM phase change materials (PCMs); overheating; summer thermal comfort; cementitious composite; form-stable PCM
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Ramakrishnan, S.; Sanjayan, J.; Wang, X. Experimental Research on Using Form-stable PCM-Integrated Cementitious Composite for Reducing Overheating in Buildings. Buildings 2019, 9, 57.

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