Discrete element analysis of heat transfer characteristics of concrete pavement under electrical heating for snow melting and deicing
文献类型：期刊论文
| 作者 | Yang, Liu2; Liu, Yiming2; Chen, Zhi2; Yang, Zhiyong2; Pei, Yaoyao2; Mao, Haijun1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2024-06-21 |
| 卷号 | 432页码:13 |
| 关键词 | Concrete pavement DEM Microstructure Heat transfer Snow melting and deicing |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2024.136486 |
| 英文摘要 | The carbon fiber electrothermal method is an efficient approach for snow melting and deicing of pavements in the cold winter. The heat transfer mechanism needs to be explored for the carbon fiber electrothermal system design, especially how the microstructure affects the thermal behavior of pavement. To do so, a discrete element method (DEM) based heat transfer model considering the pavement microstructure has been established in the current study. The shape and content of coarse-grained aggregates have been represented by using the irregular polygonal aggregate method. The accuracy and feasibility of the proposed model were verified by comparing the numerical results with the measured data. On this basis, the heat transfer characteristics of pavements during snow melting and deicing using the carbon fiber electrothermal method have been investigated. The results show that the ambient temperature and the carbon fiber heating wire (CFHW) temperature are the two primary factors affecting the heating efficiency and the maximum temperature on the pavement surface. The spacing and buried depth of the CFHW also play a crucial role in determining the temperature rise rate and the uniformity of temperature distribution of the road surface layer. Furthermore, the effect of the aggregate content on the overall heating rate is not as significant as that of the specific heat capacity ratio of the aggregate to the mortar, suggesting modifying the thermal conductivity of aggregates to enhance deicing efficiency rather than changing the aggregate contents. The effects of the CFHW design parameters on the temperature distribution of the pavement surface are also investigated. The maximum and minimum temperatures of the pavement layer decrease gradually with the increase of the laying spacing and burial depth of the CFHW, but the temperature difference increases with the increase of the laying spacing of the CFHW and decreases with the increase of the burial depth. The research results can provide a reference for the optimization design of snow melting and deicing of pavements by the CFHW heating method. |
| 资助项目 | Development Program of Hubei Province[2023BCB116] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001244092200001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41683]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Yiming |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Hubei Univ Technol, Sch Civil Engn Architecture & Environm, Wuhan 430068, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Liu,Liu, Yiming,Chen, Zhi,et al. Discrete element analysis of heat transfer characteristics of concrete pavement under electrical heating for snow melting and deicing[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,432:13. |
| APA | Yang, Liu,Liu, Yiming,Chen, Zhi,Yang, Zhiyong,Pei, Yaoyao,&Mao, Haijun.(2024).Discrete element analysis of heat transfer characteristics of concrete pavement under electrical heating for snow melting and deicing.CONSTRUCTION AND BUILDING MATERIALS,432,13. |
| MLA | Yang, Liu,et al."Discrete element analysis of heat transfer characteristics of concrete pavement under electrical heating for snow melting and deicing".CONSTRUCTION AND BUILDING MATERIALS 432(2024):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。