Empirical Validation of Heat Transfer Performance Simulation of Graphite/PCM Concrete Materials for Thermally Activated Building System
| Autor: | Seung Yeong Song, Jae Han Lim, Jin Hee Song, Su Gwang Jeong, Hye Sun Jin, Sumin Kim |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Polymers and Plastics Article Subject 020209 energy 0211 other engineering and technologies 02 engineering and technology Heat transfer coefficient Dissipation lcsh:Chemical technology Thermal energy storage Heat capacity Phase-change material Thermal conductivity 021105 building & construction Heat transfer 0202 electrical engineering electronic engineering information engineering lcsh:TP1-1185 Graphite Composite material |
| Zdroj: | International Journal of Polymer Science, Vol 2017 (2017) INTERNATIONAL JOURNAL OF POLYMER SCIENCE |
| ISSN: | 1687-9422 |
| DOI: | 10.1155/2017/6792621 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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