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Empirical Validation of Heat Transfer Performance Simulation of Graphite/PCM Concrete Materials for Thermally Activated Building System

Title
Empirical Validation of Heat Transfer Performance Simulation of Graphite/PCM Concrete Materials for Thermally Activated Building System
Authors
Song, Jin-HeeJin, Hye-SunJeong, Su-GwangKim, SuminSong, Seung-YeongLim, Jae-Han
Ewha Authors
송승영임재한
SCOPUS Author ID
송승영scopus; 임재한scopus
Issue Date
2017
Journal Title
INTERNATIONAL JOURNAL OF POLYMER SCIENCE
ISSN
1687-9422JCR Link1687-9430JCR Link
Publisher
HINDAWI LTD
Indexed
SCIE; SCOPUS WOS scopus
Abstract
To increase the heat capacity in lightweight construction materials, a phase change material (PCM) can be introduced to building elements. A thermally activated building system (TABS) with graphite/PCM concrete hollow core slab is suggested as an energy-efficient technology to shift and reduce the peak thermal load in buildings. An evaluation of heat storage and dissipation characteristics of TABS in graphite/PCM concrete has been conducted using dynamic simulations, but empirical validation is necessary to acceptably predict the thermal behavior of graphite/PCM concrete. This study aimed to validate the thermal behavior of graphite/PCM concrete through a three-dimensional transient heat transfer simulation. The simulation results were compared to experimental results from previous studies of concrete and graphite/PCM concrete. The overall thermal behavior for both materials was found to be similar to experiment results. Limitations in the simulation modeling, which included determination of the indoor heat transfer coefficient, assumption of constant thermal conductivity with temperature, and assumption of specimen homogeneity, led to slight differences between the measured and simulated results.
DOI
10.1155/2017/6792621
Appears in Collections:
엘텍공과대학 > 건축공학전공 > Journal papers
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