气候变化领域集成服务门户(CCPortal): Laboratory investigation of the efficiency optimization of an inclined two-phase closed thermosyphon in ambient cool energy utilization

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DOI	10.1016/j.renene.2018.08.078
	Laboratory investigation of the efficiency optimization of an inclined two-phase closed thermosyphon in ambient cool energy utilization
	Pei, Wansheng; Zhang, Mingyi; Li, Shuangyang; Lai, Yuanming; Dong, Yuanhong; Jin, Long
发表日期	2019
ISSN	0960-1481
起始页码	1178
结束页码	1187
卷号	133
英文摘要	Some environmental and engineering problems are associated with permafrost thaw or degradation due to the releasing of CO2, the reducing of soil strength and the change of hydrologic processes. Flow to control the geothermal to approach these problems in cold regions is an important issue. Two-phase closed thermosyphons (TPCTs) are simple and efficient energy exchangers that are used in low temperature refrigeration systems. In this study, a series of experiments were carried out to explore the geotemperature control process of a TPCT in an air-TPCT-soil system by storing renewable ambient cool energy. To enhance the control efficiency of the TPCT, we considered different operating conditions, with inclination angles of 90 degrees, 70 degrees, and 50 degrees. The results indicate that the TPCT can cool the surrounding soil by selectively capturing the ambient energy due to its thermal semi-conductor effect. The inclination angle can change the efficiency of the TPCT, which should be accounted in engineering design. Under the experimental conditions, the geotemperature control efficiency of the TPCT with an inclination angle of approximately 70 degrees was the optimal. The results of this study could provide a basis for the design of TPCTs used in cool energy utilization and other energy storage applications. (C) 2018 Elsevier Ltd. All rights reserved.
英文关键词	Heat pipe; Thermal diode; Thermal semiconductor; Geothermal control; Efficiency utilization
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Energy & Fuels
WOS类目	Green & Sustainable Science & Technology ; Energy & Fuels
WOS关键词	HEAT-TRANSFER CHARACTERISTICS ; THERMAL PERFORMANCE ; PIPE ; WATER ; PERMAFROST ; NANOFLUID ; FLOW ; CONDENSATION ; INCLINATION ; WORKING
WOS记录号	WOS:000456761300105
来源期刊	RENEWABLE ENERGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239455
作者单位	[Pei, Wansheng; Zhang, Mingyi; Li, Shuangyang; Lai, Yuanming] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Dong, Yuanhong; Jin, Long] CCCC First Highway Consultants Co LTD, Key Lab Highway Construct & Maintenance Technol P, Minist Transport, Xian 710065, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Pei, Wansheng,Zhang, Mingyi,Li, Shuangyang,et al. Laboratory investigation of the efficiency optimization of an inclined two-phase closed thermosyphon in ambient cool energy utilization[J],2019,133.
APA	Pei, Wansheng,Zhang, Mingyi,Li, Shuangyang,Lai, Yuanming,Dong, Yuanhong,&Jin, Long.(2019).Laboratory investigation of the efficiency optimization of an inclined two-phase closed thermosyphon in ambient cool energy utilization.RENEWABLE ENERGY,133.
MLA	Pei, Wansheng,et al."Laboratory investigation of the efficiency optimization of an inclined two-phase closed thermosyphon in ambient cool energy utilization".RENEWABLE ENERGY 133(2019).