Parametric analysis for performance enhancement of phase change materials in naturally ventilated buildings

Article

Ramakrishnan, Sayanthan, Wang, Xiaoming, Alam, Morshed, Sanjayan, Jay and Wilson, John. 2016. "Parametric analysis for performance enhancement of phase change materials in naturally ventilated buildings." Energy and Buildings. 124, pp. 35-45. https://doi.org/10.1016/j.enbuild.2016.04.065
Article Title

Parametric analysis for performance enhancement of phase change materials in naturally ventilated buildings

ERA Journal ID4185
Article CategoryArticle
AuthorsRamakrishnan, Sayanthan, Wang, Xiaoming, Alam, Morshed, Sanjayan, Jay and Wilson, John
Journal TitleEnergy and Buildings
Journal Citation124, pp. 35-45
Year2016
PublisherElsevier
Place of PublicationNetherlands
ISSN0378-7788
1872-6178
Digital Object Identifier (DOI)https://doi.org/10.1016/j.enbuild.2016.04.065
Web Address (URL)https://www.sciencedirect.com/science/article/pii/S0378778816303309
Abstract

This paper presents a design optimization related to the application of phase change materials within buildings, which aims to maximize the utilization of latent heat capacity to improve indoor thermal comfort during summer season. Two performance indicators are developed: efficiency coefficient (a representation of the effective utilization of latent heat storage capacity) and effectiveness coefficient (a representation of improvement of indoor thermal comfort). A series of parameters which influence the efficiency coefficient and effectiveness coefficient are identified and then formulated to quantify those coefficients for optimal design. With the performance indicators defined, a case study is performed in a typical standard Australian residential house to derive the optimized design of PCM refurbishment utilizing the developed performance indicators. Results reveal that the performance indicators are effective in the selection of optimum PCM configurations so that the resultant PCM storage efficiency and indoor thermal comfort are optimized. This is particularly demonstrated by the significant enhancement of storage efficiency and effectiveness of optimized PCM compared to non-optimized cases for each climate conditions. Furthermore, an optimized PCM condition is found to be more cost-effective than the non-optimized conditions.

KeywordsPhase change materials (PCMs); Thermal comfort; Building thermal simulation; Building thermal performance; Thermal storage efficiency
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020400505. Construction materials
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Byline AffiliationsSwinburne University of Technology
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
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