Emerging mineral-coupled composite phase change materials for thermal energy storage
A mineral-coupled support, flake graphite-carbon nanofiber-modified bentonite, was used to stabilize stearic acid for constructing form-stable phase change material composites. In order to achieve a synergistic improvement of thermal conductivity and loading space, the supporting material was prepar...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/147009 |
| _version_ | 1826110948995235840 |
|---|---|
| author | Li, Chuanchang Xie, Baoshan Chen, Jian He, Zhangxing Chen, Zhongsheng Long, Yi |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Li, Chuanchang Xie, Baoshan Chen, Jian He, Zhangxing Chen, Zhongsheng Long, Yi |
| author_sort | Li, Chuanchang |
| collection | NTU |
| description | A mineral-coupled support, flake graphite-carbon nanofiber-modified bentonite, was used to stabilize stearic acid for constructing form-stable phase change material composites. In order to achieve a synergistic improvement of thermal conductivity and loading space, the supporting material was prepared by growing carbon nanofiber on flake graphite surface through chemical vapor deposition technique and then chemically bonding with modified bentonite. The effect of coupling behavior on interfacial thermal resistance was investigated and results show that the thermal conductivity of the coupled supporting material (4.595 W m−1 K−1) is higher than that of non-coupled support (4.291 W m−1 K−1), proving chemical bonding can decrease interface thermal resistance at a certain extent. The performances of composites were further explored, which indicates the obtained composite base on coupled support possesses good chemical compatibility, and great thermal stability under 180 °C. It also shows that this composite with 41.90% loading capability has latent heat value of 79.13 J g−1 for melting and 79.13 J g−1 for freezing, respectively. After 50 heating-cooling cycles, the variation of melting latent heat was within 0.05%, exhibiting a great thermal reliability. Besides, thermal conductivity of this composite is 10.50 times higher than that of pure phase change material, resulting in more rapid heat transfer efficiency, and excellent transient temperature response recorded by thermal infrared images. In all, the composite is a potential candidate for thermal storage applications due to larger latent heat capability and considerable thermal conductivity. |
| first_indexed | 2024-10-01T02:42:34Z |
| format | Journal Article |
| id | ntu-10356/147009 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:42:34Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1470092021-03-17T06:24:07Z Emerging mineral-coupled composite phase change materials for thermal energy storage Li, Chuanchang Xie, Baoshan Chen, Jian He, Zhangxing Chen, Zhongsheng Long, Yi School of Materials Science and Engineering Engineering::Materials Form-stable Phase Change Materials Coupling Behavior A mineral-coupled support, flake graphite-carbon nanofiber-modified bentonite, was used to stabilize stearic acid for constructing form-stable phase change material composites. In order to achieve a synergistic improvement of thermal conductivity and loading space, the supporting material was prepared by growing carbon nanofiber on flake graphite surface through chemical vapor deposition technique and then chemically bonding with modified bentonite. The effect of coupling behavior on interfacial thermal resistance was investigated and results show that the thermal conductivity of the coupled supporting material (4.595 W m−1 K−1) is higher than that of non-coupled support (4.291 W m−1 K−1), proving chemical bonding can decrease interface thermal resistance at a certain extent. The performances of composites were further explored, which indicates the obtained composite base on coupled support possesses good chemical compatibility, and great thermal stability under 180 °C. It also shows that this composite with 41.90% loading capability has latent heat value of 79.13 J g−1 for melting and 79.13 J g−1 for freezing, respectively. After 50 heating-cooling cycles, the variation of melting latent heat was within 0.05%, exhibiting a great thermal reliability. Besides, thermal conductivity of this composite is 10.50 times higher than that of pure phase change material, resulting in more rapid heat transfer efficiency, and excellent transient temperature response recorded by thermal infrared images. In all, the composite is a potential candidate for thermal storage applications due to larger latent heat capability and considerable thermal conductivity. This work was supported by the National Natural Science Foundation of China, China (51504041, 51874047); the Training Program for Excellent Young Innovators of Changsha (kq1802007); the Fund for University Young Core Instructors of Hunan Province, China; the Natural Science Foundation of Hunan Province (2016JJ3009); the Key Research and Development Program of Jiangxi Province, China (20171BBH80021); and the Hunan Province 2011 Collaborative Innovation Center of Clean Energy and Smart Grid. 2021-03-17T06:24:07Z 2021-03-17T06:24:07Z 2019 Journal Article Li, C., Xie, B., Chen, J., He, Z., Chen, Z. & Long, Y. (2019). Emerging mineral-coupled composite phase change materials for thermal energy storage. Energy Conversion and Management, 183, 633-644. https://dx.doi.org/10.1016/j.enconman.2019.01.021 0196-8904 0000-0001-5915-1119 https://hdl.handle.net/10356/147009 10.1016/j.enconman.2019.01.021 2-s2.0-85060355219 183 633 644 en Energy Conversion and Management © 2019 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Materials Form-stable Phase Change Materials Coupling Behavior Li, Chuanchang Xie, Baoshan Chen, Jian He, Zhangxing Chen, Zhongsheng Long, Yi Emerging mineral-coupled composite phase change materials for thermal energy storage |
| title | Emerging mineral-coupled composite phase change materials for thermal energy storage |
| title_full | Emerging mineral-coupled composite phase change materials for thermal energy storage |
| title_fullStr | Emerging mineral-coupled composite phase change materials for thermal energy storage |
| title_full_unstemmed | Emerging mineral-coupled composite phase change materials for thermal energy storage |
| title_short | Emerging mineral-coupled composite phase change materials for thermal energy storage |
| title_sort | emerging mineral coupled composite phase change materials for thermal energy storage |
| topic | Engineering::Materials Form-stable Phase Change Materials Coupling Behavior |
| url | https://hdl.handle.net/10356/147009 |
| work_keys_str_mv | AT lichuanchang emergingmineralcoupledcompositephasechangematerialsforthermalenergystorage AT xiebaoshan emergingmineralcoupledcompositephasechangematerialsforthermalenergystorage AT chenjian emergingmineralcoupledcompositephasechangematerialsforthermalenergystorage AT hezhangxing emergingmineralcoupledcompositephasechangematerialsforthermalenergystorage AT chenzhongsheng emergingmineralcoupledcompositephasechangematerialsforthermalenergystorage AT longyi emergingmineralcoupledcompositephasechangematerialsforthermalenergystorage |