Phase Change of Confined Sodium Sulfate Hydrates in Micro Region
文献类型：会议论文
| 作者 | Xiaolin Wu; Rong Sun; Shuhui Yu; Yihai Wang; Ruxu Du |
| 出版日期 | 2009 |
| 会议名称 | The First International Conference on Applied Energy (ICAE’09) |
| 会议地点 | Vancouver, BC |
| 英文摘要 | Hydrate salt is an attractive solid-liquid Phase Change Material (PCM) because of its high energy storage density. However, its applications have been limited owing to the supercooling and phase segregation. In order to solve these problems, we propose to add silica gel, which provides in in-situ-polymerization for saturated solution of sodium sulfate. According to our experiments, the latent heat of saturated solution of sodium sulfate in silica gel is about 238238238.1 J•g-1 and the phase change temperature is 30oC. With some surfactant, it can endure more than five months of heating-cooling cycles stably in subtropical spring and summer. Using Scanning Electron Microscope (SEM) and Fourier Transformation Infrared (FTIR) Spectroscopy, it is found that the microstructure of silica gel mainly is amorphous with some small crystals distributed in it. We believe that adding the silica gel produces a porous structure, which helps the crystal growth of sodium sulfate hydrate and hence, suppress supercooling, and phase segregation. |
| 收录类别 | 其他 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/2459]  |
| 专题 | 深圳先进技术研究院_集成所 |
| 作者单位 | 2009 |
| 推荐引用方式 GB/T 7714 | Xiaolin Wu,Rong Sun,Shuhui Yu,et al. Phase Change of Confined Sodium Sulfate Hydrates in Micro Region[C]. 见:The First International Conference on Applied Energy (ICAE’09). Vancouver, BC. |
入库方式： OAI收割
来源：深圳先进技术研究院
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