Climate Change Data Portal
| DOI | 10.1016/j.applthermaleng.2018.06.061 |
| The thermal effect of heating two-phase closed thermosyphons on the high-speed railway embankment in seasonally frozen regions | |
| Gao J.; Lai Y.; Zhang M.; Chang D. | |
| 发表日期 | 2018 |
| ISSN | 13594311 |
| 卷号 | 141 |
| 英文摘要 | The heating two-phase closed thermosyphon (HTPCT), as a highly efficient heat transfer device, can be used to warm embankments in seasonally frozen regions. The HTPCT is driven by the combination of solar energy and electric heating. In this paper, to evaluate the heating performance of the HTPCTs applied to the embankment of high-speed railway in seasonally frozen regions, a three-dimensional coupled heat transfer model was developed based on the heat and mass transfer theories and the principle of HTPCT, then the thermal property of the embankment with HTPCT was simulated by this model for 10 years according to geology and atmospheric temperature conditions. The numerical results show that: (1) the freezing depth of the normal embankment is larger than that of natural ground surface; (2) the HTPCTs are effective to adjust and increase the geotemperature of the embankment in cold seasons, and could greatly reduce the freezing depth in the central part of the embankment under the concrete track plate; (3) the effective heating area of the HTPCT is limited, and the freezing depths under the shoulders and slope toes of the embankment are still larger than that under the track plate. © 2018 Elsevier Ltd |
| 英文关键词 | Freezing depth; Heating two-phase closed thermosyphon embankment; High-speed railway; Seasonally frozen regions; Thermal characteristic |
| URL | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85048757594&doi=10.1016%2fj.applthermaleng.2018.06.061&partnerID=40&md5=68eb0416caef7fb08216591e18f64b11 |
| 语种 | 英语 |
| scopus关键词 | Capillary flow; Embankments; Flow patterns; Freezing; Heating; Mass transfer; Railroad plant and structures; Railroads; Siphons; Solar energy; Thermosyphons; Coupled heat transfer model; Heat and mass transfer; Heat transfer device; Heating performance; High - speed railways; Seasonally frozen regions; Thermal characteristics; Two-phase closed thermosyphon; Railroad transportation |
| 来源期刊 | Applied Thermal Engineering |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/77253 |
| 推荐引用方式 GB/T 7714 | Gao J.； Lai Y.； Zhang M.； Chang D.. The thermal effect of heating two-phase closed thermosyphons on the high-speed railway embankment in seasonally frozen regions[J]. 中国科学院西北生态环境资源研究院,2018,141. |
| APA | Gao J.； Lai Y.； Zhang M.； Chang D..(2018).The thermal effect of heating two-phase closed thermosyphons on the high-speed railway embankment in seasonally frozen regions.Applied Thermal Engineering,141. |
| MLA | Gao J.； Lai Y.； Zhang M.； Chang D.."The thermal effect of heating two-phase closed thermosyphons on the high-speed railway embankment in seasonally frozen regions".Applied Thermal Engineering 141(2018). |
| 条目包含的文件 | ||||||
| 条目无相关文件。 | ||||||
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。
