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Influence of phase-change temperature on the thermal energy storage properties of natural stone treated with PCMs.
Author(s) : ROMERO-SÁNCHEZ M. D., RODES J. M., GUILLEM-LÓPEZ C., et al.
Summary
Phase changing materials (PCMs) are substances with a high latent heat and able to store and release energy at their melting temperature. They can be incorporated to construction materials to enhance their thermal properties. Some references indicate that the storage and release of thermal energy during day-night cycles contribute to the reduction of temperature fluctuations between day and night and therefore a reduction in energy demands (heating and cooling systems) in buildings. Consequently, CO2 emissions and negative effects and damages for the environment can be reduced. The effectiveness of the treatment with PCMs as thermal energy storage system depends on several parameters, such as the phase change temperature (solid to liquid change) and the regional climatology (temperature and irradiation mainly). In this study, PCMs with different phase change temperature have been incorporated to natural stone. The objective is to analyze the effectiveness of PCMs on the thermal energy storage properties of natural stone during the year (different climatic conditions). It has been demonstrated that the introduction of PCMs with different melting temperatures provides materials with energy storage capacity for different climatic conditions (summer or winter times). Therefore, by changing the PCM melting temperature, new stone products can be designed for different climate conditions of different regions and for special exposure conditions.
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Details
- Original title: Influence of phase-change temperature on the thermal energy storage properties of natural stone treated with PCMs.
- Record ID : 2010-1477
- Languages: English
- Source: 9th Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: Sofia, Bulgaria, September 29-October 1, 2010.
- Publication date: 2010/09/01
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