Multi-form heat storage performance of expanded graphite based CaCl2 composites for low-grade heat source
文献类型：期刊论文
| 作者 | Gao, Na5,6; Deng, Lisheng4,6; Li, Jun6; Huang, Hongyu1,4,6; Zhou, Bin3; Zhou, You2,3 |
| 刊名 | ENERGY REPORTS
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 8页码:12117-12125 |
| 关键词 | Expanded graphite Calcium chloride Composite Multi-form sorption Thermal energy storage |
| ISSN号 | 2352-4847 |
| DOI | 10.1016/j.egyr.2022.09.051 |
| 通讯作者 | Huang, Hongyu(huanghy@ms.giec.ac.cn) ; Zhou, You(you.zhou.c@chenergy.com.cn) |
| 英文摘要 | Hydrated salt CaCl2 is a promising material for low-grade thermochemical heat storage. To improve cyclic stability of the material, porous matrixes are usually employed to synthesize CaCl2/matrix composites. However, the multi-step reaction of the salt and multi-form sorption of the composites increase the complexity during the practical application. This study proposed a novel method to study the multi-form heat storage performance. By combining TG/DSC measurement with Peak-fitting analysis, the multi-form mechanism of hydration/dehydration is revealed quantitatively. A series of EG/CaCl2 composites are synthesized with different salt content in the range of 23.8 wt% similar to 57.8 wt%. All of the composites show well endothermic dehydration performance below 130 degrees C. A highest heat storage density of 1637.6 kJ/kg was obtained with a salt content of 48.1 wt% and a water uptake of 0.79 g/g. Water uptake of EG/CaCl2 composites is composed of chemisorption water loaded through reversible hydration reactions and solution absorption water introduced from salt deliquescence. The solution absorption plays nearly the equitant important role as chemical sorption, both in water adsorption ability and thermal storage capacity. The EG/CaCl2 composite show great support capacity for both salt and solution, making it an interesting material for low-grade heat storage.(c) 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| WOS关键词 | ENERGY-STORAGE ; THERMAL-ENERGY ; ENHANCEMENT ; HYDRATION ; DENSITY ; CARBON ; SCALE |
| 资助项目 | Key Area Research and Development Program of Guangdong Province, China[2019B110209003] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) , China[GML2019ZD0108] ; Technology project of China Energy Investment Corporation, China[GJNY-20-121] |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000867655900011 |
| 出版者 | ELSEVIER |
| 资助机构 | Key Area Research and Development Program of Guangdong Province, China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) , China ; Technology project of China Energy Investment Corporation, China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/37559]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Huang, Hongyu; Zhou, You |
| 作者单位 | 1.2 Nengyuan Rd, Guangzhou, Peoples R China 2.Future Sci & Technol City Rd, Beijing, Peoples R China 3.Natl Inst Clean And Low Carbon Energy, Beijing 102211, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Na,Deng, Lisheng,Li, Jun,et al. Multi-form heat storage performance of expanded graphite based CaCl2 composites for low-grade heat source[J]. ENERGY REPORTS,2022,8:12117-12125. |
| APA | Gao, Na,Deng, Lisheng,Li, Jun,Huang, Hongyu,Zhou, Bin,&Zhou, You.(2022).Multi-form heat storage performance of expanded graphite based CaCl2 composites for low-grade heat source.ENERGY REPORTS,8,12117-12125. |
| MLA | Gao, Na,et al."Multi-form heat storage performance of expanded graphite based CaCl2 composites for low-grade heat source".ENERGY REPORTS 8(2022):12117-12125. |
入库方式： OAI收割
来源：广州能源研究所
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