Knowledge Management System Of Qinghai Institute of Salt Lakes,CAS
| Single-walled carbon nanotube for shape stabilization and enhanced phase change heat transfer of polyethylene glycol phase change material | |
Qian, Tingting; Li, Jinhong; Feng, Wuwei; Nian, Hong'en
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| 第一作者 | Qian, Tingting |
| 2017-07-01 | |
| 发表期刊 | ENERGY CONVERSION AND MANAGEMENT
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| ISSN | 0196-8904 |
| 卷号 | 143页码:96-108 |
| 关键词 | Single-walled Carbon Nanotubes Shape Stabilization Thermal Conductivity Phase Change Heat Transfer Efficiency |
| 摘要 | In order to simultaneously stabilize the shape and enhance the heat transfer efficiency of a typical polyethylene glycol (PEG) phase change material (PCM), a family of novel nanocomposites consisting of single-walled carbon nanotubes (SWCNs) and PEG was tailor-made via a facile impregnation method. The effects of SWCNs loadings ranging from 2% to 10% on the chemical structure, thermal performance and heat transfer enhancement of PEG were investigated experimentally. The fabricated nanocomposite exhibits high adsorption of PEG as high as 98% and can completely preserve its original shape without any PEG leakage even when subjected to a 400 melt-freeze cycle. The maximum adsorption of PEG is the highest value in literature up to now. The melting point of PEG/SWCNs nanocomposite shifts to a lower temperature while the freezing point shifts to a higher temperature while compared to the pure PEG, resulting in a substantial reduction of the supercooling degree. Above all, the thermal conductivity was found to increase with SWCN loadings whether in solid or liquid state. In detail, only with a small SWCN loading of 4%, a dramatically high, 375% enhancement is obtained in the solid state and a relatively high enhancement of 121% is achieved in the liquid state. (C) 2017 Elsevier Ltd. All rights reserved. |
| DOI | 10.1016/j.enconman.2017.03.065 |
| 语种 | 英语 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/4246 |
| 专题 | 青海盐湖研究所知识仓储 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Qian, Tingting,Li, Jinhong,Feng, Wuwei,et al. Single-walled carbon nanotube for shape stabilization and enhanced phase change heat transfer of polyethylene glycol phase change material[J]. ENERGY CONVERSION AND MANAGEMENT,2017,143:96-108. |
| APA | Qian, Tingting,Li, Jinhong,Feng, Wuwei,&Nian, Hong'en.(2017).Single-walled carbon nanotube for shape stabilization and enhanced phase change heat transfer of polyethylene glycol phase change material.ENERGY CONVERSION AND MANAGEMENT,143,96-108. |
| MLA | Qian, Tingting,et al."Single-walled carbon nanotube for shape stabilization and enhanced phase change heat transfer of polyethylene glycol phase change material".ENERGY CONVERSION AND MANAGEMENT 143(2017):96-108. |
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| Single-walled carbon（7104KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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