Lattice Boltzmann simulation of the melting enhancement of composite phase change material with highly conductive additives-Effect of discrete particulate phase and continuous conductive network
文献类型：期刊论文
| 作者 | Liu, Wenwei; Huang, Yun1 |
| 刊名 | APPLIED THERMAL ENGINEERING
 |
| 出版日期 | 2022-11-25 |
| 卷号 | 217页码:17 |
| ISSN号 | 1359-4311 |
| 关键词 | Thermal energy storage Phase change material Paraffin -aluminum composite Conductive additives Lattice Boltzmann method |
| DOI | 10.1016/j.applthermaleng.2022.119211 |
| 英文摘要 | The melting process of paraffin-aluminum composite PCM in a 2D enclosure is numerically investigated by means of an enthalpy-based lattice Boltzmann method. The aluminum is deployed in discrete particles with size around 100 mu m and the continuous fibrous network in the composite PCM, respectively. The effects of equivalent particle diameter, the volume fraction of aluminum additives as well as the local structural rearrangement are systematically investigated. The results demonstrate that the appending of discrete aluminum particles at a low volume fraction (phi <= 0.2 in this work) even has a negative effect on the melting process, because of the inhibition of the natural convection. By concentrating the particles in either back and top area, the melting performance could be slightly promoted. However, the improvement is very limited. Instead, it is more effective to utilize the continuous conductive fibrous network structure to accelerate the melting, which is suggested to be bespread over the entire PCM with larger local space in the direction of temperature gradient. Furthermore, it is discovered that the critical melting time reduces exponentially with the increase of fiber volume fraction. This work gives a comprehensive understanding of the differences between the discrete particles and continuous structures in the heat transfer enhancement of composite PCM, and offers an optimization strategy in the fabrication of fiber/foam structures. |
| WOS关键词 | THERMAL-ENERGY STORAGE ; HEAT-TRANSFER CHARACTERISTICS ; NUMERICAL-SIMULATION ; METAL FOAM ; PERFORMANCE ; MANAGEMENT ; RECOVERY ; MODEL ; INTEGRATION ; PARAFFIN |
| 资助项目 | National Natural Science Foundation of China[21975262] ; DNL Cooperation Fund, CAS[DNL202017] ; Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2021-A-15] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000890454500003 |
| 资助机构 | National Natural Science Foundation of China ; DNL Cooperation Fund, CAS ; Fund of State Key Laboratory of Multiphase Complex Systems |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56042]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Huang, Yun |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Wenwei,Huang, Yun. Lattice Boltzmann simulation of the melting enhancement of composite phase change material with highly conductive additives-Effect of discrete particulate phase and continuous conductive network[J]. APPLIED THERMAL ENGINEERING,2022,217:17. |
| APA | Liu, Wenwei,&Huang, Yun.(2022).Lattice Boltzmann simulation of the melting enhancement of composite phase change material with highly conductive additives-Effect of discrete particulate phase and continuous conductive network.APPLIED THERMAL ENGINEERING,217,17. |
| MLA | Liu, Wenwei,et al."Lattice Boltzmann simulation of the melting enhancement of composite phase change material with highly conductive additives-Effect of discrete particulate phase and continuous conductive network".APPLIED THERMAL ENGINEERING 217(2022):17. |
入库方式： OAI收割
来源：过程工程研究所
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