气候变化领域集成服务门户(CCPortal): Numerical study on cooling characteristics of two-phase closed thermosyphon embankment in permafrost regions

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DOI	10.1016/j.coldregions.2010.08.001
	Numerical study on cooling characteristics of two-phase closed thermosyphon embankment in permafrost regions
	Zhang, Mingyi; Lai, Yuanming; Zhang, Jianming; Sun, Zhizhong
发表日期	2011
ISSN	0165-232X
起始页码	203
结束页码	210
卷号	65 期号:2
英文摘要	The two-phase closed thermosyphon (TPCT) is an effective heat transfer device decreasing the ground temperature around it in cold season, but not absorbing heat energy in warm season. In this paper, in order to research the efficiency of the TPCT applied to the embankment in permafrost regions, a three-dimension model for the TPCT embankment was presented based on the work characteristics of the TPCT and on the related heat transfer theories. The numerical results showed that 1) the model can reasonably solve the coupled heat transfer problem of air-TPCf-soil for TPCT embankment; 2) the TPCT embankment is effective to protect the underlying permafrost and to ensure the stability of roadway in permafrost regions; furthermore, it could play rapidly a cooling effect and approach a thermal balance state after 5 years of construction: and 3) the TPCT, if combined with other engineering methods such as insulation, crushed rock, etc., can be an more effective engineering measure to ensure the stability of roadway engineering in warm permafrost regions. (C) 2010 Elsevier B.V. All rights reserved.
英文关键词	Cooling characteristic; Two-phase closed thermosyphon embankment; Permafrost region; Numerical study
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS记录号	WOS:000286860200009
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239519
作者单位	[Zhang, Mingyi; Lai, Yuanming; Zhang, Jianming; Sun, Zhizhong] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Mingyi,Lai, Yuanming,Zhang, Jianming,et al. Numerical study on cooling characteristics of two-phase closed thermosyphon embankment in permafrost regions[J],2011,65(2).
APA	Zhang, Mingyi,Lai, Yuanming,Zhang, Jianming,&Sun, Zhizhong.(2011).Numerical study on cooling characteristics of two-phase closed thermosyphon embankment in permafrost regions.COLD REGIONS SCIENCE AND TECHNOLOGY,65(2).
MLA	Zhang, Mingyi,et al."Numerical study on cooling characteristics of two-phase closed thermosyphon embankment in permafrost regions".COLD REGIONS SCIENCE AND TECHNOLOGY 65.2(2011).