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Simulation of air storage aquifer by finite element model
Author(s) -
Meiri David,
Karadi Gabor M.
Publication year - 1982
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610060306
Subject(s) - compressed air energy storage , specific storage , aquifer , finite element method , partial differential equation , energy storage , saturation (graph theory) , engineering , geotechnical engineering , mechanics , groundwater , mathematics , structural engineering , physics , thermodynamics , mathematical analysis , power (physics) , combinatorics , groundwater recharge
A finite element model is developed to simulate the behaviour of an aquifer used as storage space for a compressed air energy storage (CAES) system. The governing equations describing a two‐phase flow of air and water are coupled non‐linear partial differential equations and are solved by the Galerkin approach. The resulting computer model is applied to a gas percolation problem. Upon verification of the numerical results, the model is employed to simulate the air‐water displacement in a storage reservoir during daily air cycling. The corresponding saturation variations and the effects of reservoir permeability on the system are presented. The results obtained are essential in establishing storage design and stability criteria for long‐term operation of compressed air energy storage systems.