期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 117, 期 -, 页码 87-92出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2013.05.038
关键词
Bio-based; PCM; XGnP; Heat storage; Thermal properties; Impregnation
资金
- National Research Foundation of Korea (NRF)
- Korea government (MEST) [2012-0005188]
Bio-based PCMs are a type of organic fatty acid ester PCMs made from natural resources, such as soy beans and palm oils. Bio-based PCMs are capable of absorbing, storing, and releasing large amounts of latent heat, similar to conventional paraffin-based PCMs. Compared to the paraffinic PCMs, Bio-based PCMs are significantly less flammable. Also they have a major drawback, namely the low thermal conductivity like as the other PCMs. To improve the thermal conductivity of Bio-based PCMs, xGnP (Exfoliated graphite nanoplatelets) can be an effective enhancement. Therefore we prepared form stable Bio-based PCMs with xGnP, by using the vacuum impregnation method. In this study, we used one of the Bio-based PCMs, which contained soybean oils, coconut oils, and beef tallow. And it has a latent heat capacity of 149.2 J/g and melting point of 29.38 degrees C. The Bio-based PCM was incorporated into the porous structure of xGnP. The characteristics of the Bio-based composite PCM were determined by using SEM, DSC, MR, TGA and TCi. (C) 2013 Elsevier B.V. All rights reserved.
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