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Study on the Thermal Properties of Paraffin/Ceramsite Phase Change Concrete
Mixed paraffins, which had low phase transition temperature and high enthalpy, were used as phase change material (PCM), light-weight clay ceramsite was used as carrier, paraffin/ceramsite PCM was prepared and which was encapsulated by epoxy resin and triethylenetetramine. The results show that the proportion of liquid paraffin to solid paraffin is 4:6 through both temperature-time curve test and DSC analysis. The quality of paraffin which is absorbed in vacuum condition for 2 hours is 95.5% and the minimum leakage quality of paraffin in the process of thermal cycling is 3.3% which is half of the unencapsulated. It takes 480 min for paraffin ceramsite PCM drop its temperature from 24 °C to 18 °C, and it is 240 min for normal concrete which could effectly prevent heat transfer inside and outside, then reduce the indoor temperature fluctuations and improve living comfort compared to ordinary concrete.
Study on the Thermal Properties of Paraffin/Ceramsite Phase Change Concrete
Mixed paraffins, which had low phase transition temperature and high enthalpy, were used as phase change material (PCM), light-weight clay ceramsite was used as carrier, paraffin/ceramsite PCM was prepared and which was encapsulated by epoxy resin and triethylenetetramine. The results show that the proportion of liquid paraffin to solid paraffin is 4:6 through both temperature-time curve test and DSC analysis. The quality of paraffin which is absorbed in vacuum condition for 2 hours is 95.5% and the minimum leakage quality of paraffin in the process of thermal cycling is 3.3% which is half of the unencapsulated. It takes 480 min for paraffin ceramsite PCM drop its temperature from 24 °C to 18 °C, and it is 240 min for normal concrete which could effectly prevent heat transfer inside and outside, then reduce the indoor temperature fluctuations and improve living comfort compared to ordinary concrete.
Study on the Thermal Properties of Paraffin/Ceramsite Phase Change Concrete
Wang, Qing (author) / Zhang, Cun-Bao (author) / Ding, Zhao-Yang (author) / Liu, Jun (author)
2013
5 Seiten
Conference paper
English
Study on the Thermal Properties of Paraffin/Ceramsite Phase Change Concrete
| British Library Conference Proceedings | 2014
| European Patent Office | 2020