PCMs heat transfer performance enhancement with expanded graphite and its thermal stability
文献类型：会议论文
| 作者 | Jin, Yi1; Wan, Qingming1,3; Ding, Yulong2 |
| 出版日期 | 1905-07-07 |
| 会议日期 | May 19, 2014 - May 22, 2014 |
| 会议地点 | Beijing, China |
| 关键词 | Heat storage - Vacuum applications - Phase change materials - Storage (materials) - Graphite - Heat transfer |
| 卷号 | 102 |
| DOI | 10.1016/j.proeng.2015.01.326 |
| 页码 | 1877-1884 |
| 英文摘要 | This work focuses on developing a high performance phase change materials (PCMs) adding with a few expanded graphite (EG). A series of composite phase change materials (paraffin) with various EG concentration are formulated in vacuum condition and ambient pressure respectively. The heat fusion of composite PCMs is measured by DSC. A rig for PCMs heat transfer performance test is built in lab. The heat transfer performance test of composites PCMs are carried out. The heat storage and release processed of pure PCMs and composite significantly improved after EG adding. The composited PCMs formulated in vacuum condition also presents better heat transfer performance. It shows composite PCMs can be well mixed in vacuum. Due to the repeated heating and cooling in PCMs application, thermal stability test is carried out in this work. PCMs are putting in water bath with temperature controlling by cyclic phase change to quantify the rate of degradation heat fusion and thermal charge/discharge process. After cycling 60 times, up to 2% heat fusion decrement is observed. Heat transfer performance studies also show that there is little change. In brief, PCMs with EG has high thermal performance for thermal energy storage process. 漏 2015 The Authors. |
| 项目编号 | This work was supported by National Natural Science Foundation of China (No. 21106148), NSFC-EPSRC joint proposal in Grid Storage for Intermittency (No. 51361135702) and Key Technologies R&D Program of China (No. 2012BAA03B03). |
| 资助机构 | Elsevier Ltd |
| 会议录 | 7th World Congress on Particle Technology, WCPT 2014
 |
| 学科主题 | Thermodynamic Stability |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59324]  |
| 作者单位 | 1.Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China 2.Centre for Energy Storage Research, University of Birmingham, Edgbaston, United Kingdom 3.Universtiy of Chinese Academy of Sciences, Beijing, China |
| 推荐引用方式 GB/T 7714 | Jin, Yi,Wan, Qingming,Ding, Yulong. PCMs heat transfer performance enhancement with expanded graphite and its thermal stability[C]. 见:. Beijing, China. May 19, 2014 - May 22, 2014. |
入库方式： OAI收割
来源：过程工程研究所
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