Modeling the mining of energy storage salt caverns using a structural dynamic mesh

doi:10.1016/j.energy.2019.116730

	Modeling the mining of energy storage salt caverns using a structural dynamic mesh
	Li Jinlong 3; Xu Wenjie 3; Zheng Jianjing 3; Liu Wei 2; Shi Xilin 1; Yang Chunhe 1
刊名	ENERGY
	2020-02-15
卷号	193 页码:867-876
关键词	Salt cavern gas storage Inclined bedded salt Solution mining Dynamic mesh Moving boundary
ISSN号	0360-5442
DOI	10.1016/j.energy.2019.116730
英文摘要	Modeling is significant for the design and control of the mining of energy storage salt caverns for capacity and stability considerations. Traditional elastic mesh methods lose accuracy and cannot properly describe the upward development of a cavern. In this paper a salt cavern mining model is proposed using a structural dynamic mesh method. The salt dissolution rate is introduced as being related to the brine concentration and the salt-brine interface angle. A set of points with two degrees of freedom is used to describe the moving salt-brine boundary. The order and number of the points are modifiable to keep their distance reasonable and to avoid boundary self-crossing. The interior elements are dynamically determined. Mass and momentum conservation are used to solve the concentration and flow field. A C++ program is developed to implement the proposed model. A laboratory salt dissolution experiment and a field simulation are conducted for verification. Compared with a traditional model, the upward dissolution of salt can be simulated with higher accuracy. The model shows good reliability in simulating an irregularly shaped cavern, JT86, in Jintan, China. The study indicates that the uneven development of the cavern occurs due to the development of "self-locking" and cavern fingers. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	Basic Science Center Program for Multiphase Evolution in Hypergravity of the National Natural Science Foundation of China[51988101] ; China Postdoctoral Science Foundation[2018M642433] ; Fundamental Research Funds for the Central Universities[2019QNA4034] ; Fundamental Research Funds for the Central Universities[2019QNA4035] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018021] ; National Natural Science Foundation of China[51774266]
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000518699000068
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23714]
专题	中科院武汉岩土力学所
通讯作者	Zheng Jianjing; Liu Wei
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 3.Zhejiang Univ, Hypergrav Res Ctr, HRC ZJU, MOE Key Lab Soft Soils & Geoenvironm Engn, Hangzhou 31005, Peoples R China
推荐引用方式 GB/T 7714	Li Jinlong,Xu Wenjie,Zheng Jianjing,et al. Modeling the mining of energy storage salt caverns using a structural dynamic mesh[J]. ENERGY,2020,193:867-876.
APA	Li Jinlong,Xu Wenjie,Zheng Jianjing,Liu Wei,Shi Xilin,&Yang Chunhe.(2020).Modeling the mining of energy storage salt caverns using a structural dynamic mesh.ENERGY,193,867-876.
MLA	Li Jinlong,et al."Modeling the mining of energy storage salt caverns using a structural dynamic mesh".ENERGY 193(2020):867-876.