Journal
ENERGY AND BUILDINGS
Volume 106, Issue -, Pages 164-174Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2015.05.034
Keywords
Building envelope; PCM; Heisler chart; Transient heat transfer; Demand shift; Net zero energy building
Funding
- Public Works and Government Services Canada
- Concordia University
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Building envelope integrated with phase change material (PCM) can provide thermal energy storage (TES) distributed in its entire surface area and inhibit the need for enhanced thermal mass in lightweight buildings. Selecting the most appropriate PCM wallboard based on its thickness and thermo-physical properties is the main challenge in the design of net-zero energy buildings and high performance buildings; yet, there is a lack of an appropriate design tool. To develop a design tool, characterizing transient heat transfer phenomena of wallboards impregnated with PCM during charging procedure is required. Accordingly, this study focuses on the characterizing heat transfer of PCM wallboards, and to identify the influential parameters on the charging procedure of a PCM wallboard. The non-dimensionalized analysis was conducted, and the dimensionless numbers influencing the thermal behavior of a PCM wallboard were identified. Moreover, the correlations between the dimensionless parameters and the performance of the PCM wallboard were determined through a comprehensive parametric study. Consequently, a procedure was developed to expand Heisler chart application to study thermal behavior of PCM wallboards. (C) 2015 Elsevier B.V. All rights reserved.
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