A method for estimating air leakage through inner seals and mechanical responses of the surrounding rock of lined rock caverns for compressed air energy storage
(1. Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;2. College of Civil Engineering,Shaoxing University,Shaoxing,Zhejiang 312000,China;3. Hunan Provincial Key Laboratory of Key Technology on Hydropower Development,PowerChina Zhongnan Engineering Corporation Limited,Changsha,Hunan 410014,China;4. College of Civil Engineering and Architecture,China Three Gorges University,Yichang,Hubei 443002,China)
Abstract:In this paper,an iterative method was proposed to calculate the air leakage rates and the stresses and displacements of the surrounding rock of lined rock caverns(LRCs) for the compressed air energy storage(CAES). The proposed method is based on the simplified solution for temperature and pressure variations in CAES caverns,the diffusion equation of polymers,the equation of radial laminar flow in porous media,and the analytical solutions for a circular hole in an infinite elastic medium. Five case studies were used to confirm the capability of the proposed method in correctly estimating the air leakage rates and the stresses and displacements of the surrounding rock. The proposed method is easy to be programmed and yields the results faster than the numerical modeling. Thus,the proposed method can be used in a primary study stage of CAES research(i.e.,sites selection,initial designing stage) or be compared with the results from the detailed numerical modeling to provide the critical information for further studies.
周 瑜1,夏才初1,2,赵海斌3,王先军4,梅松华3,周舒威1. 压气储能内衬洞室的空气泄漏率及围岩力学响应估算方法[J]. 岩石力学与工程学报, 2017, 36(2): 297-297.
ZHOU Yu1,XIA Caichu1,2,ZHAO Haibin3,WANG Xianjun4,MEI Songhua3,ZHOU Shuwei1. A method for estimating air leakage through inner seals and mechanical responses of the surrounding rock of lined rock caverns for compressed air energy storage. , 2017, 36(2): 297-297.
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