Design Criteria for Compressed Air Storage in Hard Rock
Compressed Air Energy Storage (CAES) in underground caverns can be used to generate electrical power during peak demand periods. The excess power generation capacity, which is available when demand is low, is used to store energy in the form of compressed air.
Characterizing Excavation Damaged Zone and Stability of Pressurized Lined Rock Caverns for Underground Compressed Air Energy Storage
This paper presents a case study of a geotechnical feasibility analysis of compressed air energy storage (CAES) in bedded salt formations. CAES is a way in which excess electricity is used to
Comparative analysis of thermodynamic and mechanical responses between underground hydrogen storage and compressed air energy storage
Underground hydrogen storage (UHS) and compressed air energy storage (CAES) are two viable large-scale energy storage technologies for mitigating the
Stability analysis for compressed air energy storage cavern with initial excavation damage
Underground hydrogen storage (UHS) and compressed air energy storage (CAES) are two viable large-scale energy storage technologies for mitigating the intermittency of wind and solar power. Therefore, it is meaningful to compare the properties of hydrogen and air with typical thermodynamic storage processes.
The role of underground salt caverns for large-scale energy storage
Compressed air and hydrogen storage are two main available large-scale energy storage technologies, which are both successfully implemented in salt caverns [281]. Therefore, large-scale energy storage in salt caverns will also be enormously developed to deal with the intermittent and fluctuations of renewable sources at the
Compressed Air Energy Storage in Underground Formations
This chapter describes various plant concepts for the large-scale storage of compressed air and presents the options for underground storage and their suitability in accordance with current engineering practice. Compressed air energy storage projects which are currently in operation, construction, or planning are also presented.
Stability and Sealing of Abandoned Roadways Under High
Compressed air energy storage (CAES) is a technology that uses high-pressure air as a medium to store energy and generate electricity. Underground caverns can provide gas storage space for CAES [1, 2] the process of energy storage, off-peak power, abandoned wind power, and abandoned photoelectric energy are used to
The mechanical behavior of rock salt under different
1. Introduction. Compressed air energy storage (CAES) is an energy storage and power generation technology for consuming and supplying electricity to balance electric utility systems, which helps intermittent sources of renewable energy to provide a stable energy supply (Cavallo, 2007; Zhang et al., 2015).Underground salt caverns
UNDERGROUND COMPRESSED AIR ENERGY STORAGE FOR ELECTRIC UTILITIES
Compressed air energy storage (CAES) is a concept for electric utility application which stores energy generated during periods of low demand and releases that energy during peak demand periods. Air is compressed during low demand periods by motor-driven compressors and stored in large underground reservoirs. When power is
Debrining prediction of a salt cavern used for compressed air energy storage
Using salt caverns for compressed air energy storage (CAES) is a main development direction in China to provide a continuous power supply produced by renewable energy (e.g., solar, wind, tidal energy). A mathematical model used to predict the debrining parameters for a salt cavern used for CAES is built based on the pressure
Stability analysis for compressed air energy storage cavern with
At present, the underground gas storages that can be used for large-scale compressed air energy storage mainly include underground salt caverns [7][8][9], hard rock caverns [10][11][12], abandoned
Characterizing Excavation Damaged Zone and Stability of
In this paper, we investigate the influence of the excavation damaged zone (EDZ) on the geomechanical performance of compressed air energy storage (CAES) in lined rock
Debrining prediction of a salt cavern used for compressed air energy
Salt cavern underground gas storage (UGS), one of the main ways of energy storage, is widely used for energy storage, including petroleum [1], natural gas [2], hydrogen [3] and compressed air [4
Geotechnical Feasibility Analysis of Compressed Air Energy Storage
In recent years, much research on energy storage in bedded salt formations has been carried out; For example, Liang et al. researched the mechanics of rock salt samples with nonsalt layers.Wang et al. provided a new shape design method for salt caverns used for underground gas storage.Zhang et al. evaluated the stability
[PDF] Numerical simulation for the coupled thermo-mechanical performance of a lined rock cavern for underground compressed air energy storage
Compressed air energy storage (CAES) is a technology that uses compressed air to store surplus electricity generated from low power consumption time for use at peak times. This paper presents a thermo-mechanical modeling for the thermodynamic and mechanical responses of a lined rock cavern used for CAES. The simulation was accomplished in
Characterizing Excavation Damaged Zone and Stability of
In this paper, we investigate the influence of the excavation damaged zone (EDZ) on the geomechanical performance of compressed air energy storage (CAES)
Long-term stability analysis and evaluation of salt cavern compressed
To investigate the influence of the fatigue effect of salt rock on the long-term stability of the compressed air energy storage power plant, the numerical simulation method was used to analyze the long-term stability of the energy storage under the conditions of the fatigue effect is considered (the creep-fatigue interaction of salt rock
Geomechanical analysis of the stability conditions of shallow cavities for Compressed Air Energy Storage
Compressed Air Energy Storage (CAES) systems compress air into underground cavities when there is an excess of energy production (e.g., in the electrical grid or in an electrical plant) and generate electrical energy using a turbine when the electricity demand exceeds the production. Underground air storage requires
Stability analysis of CAES salt caverns using a creep-fatigue
Long term stability evaluation of an old underground gas storage cavern using unique numerical methods. Tunn. Undergr. Space Technol., 30 Long-term stability analysis and evaluation of salt cavern compressed air energy storage power plant under creep-fatigue interaction. J.Energy Storage, 55 (2022), Article 105843.
Parameter design of the compressed air energy storage salt
In this paper, we investigate the feasibility and stability assessment of a compressed air energy storage (CAES) salt cavern in high impurity salt formation in
Long-term stability of a lined rock cavern for compressed air
The long-term stability of a lined rock cavern (LRC) for underground compressed air energy storage is investigated using a thermo-mechanical (TM)
The underground performance analysis of compressed air energy storage
As a novel compressed air storage technology, compressed air energy storage in aquifers (CAESA), has been proposed inspired by the experience of natural gas or CO 2 storage in aquifers. Although there is currently no existing engineering implementation of CAESA worldwide, the advantages of its wide distribution of storage space and low
The mechanical behavior of rock salt under different confining pressure unloading rates during compressed air energy storage
Compressed air energy storage (CAES) is a promising energy conversion storage technology and underground salt caverns are recognized as the appropriate storage places for it. The reduction of air during the withdrawal periods leads to the surrounding rock being unloaded, which threatens the stability of the salt cavern.
Energies | Free Full-Text | Feasibility Analysis of Compressed Air Energy Storage in Salt Caverns
With the widespread recognition of underground salt cavern compressed air storage at home and abroad, how to choose and evaluate salt cavern resources has become a key issue in the construction of gas storage. This paper discussed the condition of building power plants, the collection of regional data and salt plant data,
Stability analysis for compressed air energy storage cavern with
Compressed air energy storage (CAES) salt caverns are suitable for large-scale and long-time storage of compressed air in support of electrical energy
A variable pressure water-sealed compressed air energy storage
For compressed air energy storage (CAES) caverns, the artificially excavated tunnel is flexible in site selection but high in sealing cost. A novel concept of building a water-sealed CAES tunnel in the seabed is proposed in this study, and the airtightness of the system is preliminarily evaluated.
Characterizing Excavation Damaged Zone and Stability of Pressurized Lined Rock Caverns for Underground Compressed Air Energy Storage
In this paper, we investigate the influence of the excavation damaged zone (EDZ) on the geomechanical performance of compressed air energy storage (CAES) in lined rock caverns. We conducted a detailed characterization of the EDZ in rock caverns that have been excavated for a Korean pilot test program on CAES in (concrete) lined rock
Stability evaluation of the underground gas storage in rock
Due to the rheology, low permeability, and damage recovery of rock salts, the salt caverns have been widely used for natural gas and compressed air energy storage (Yang et al. 1999).The salt caverns have been used for gas storage for several decades in Europe and America (Bauer et al. 2013; Brown et al. 2014; Dethlefsen et al.
A new multi-objective optimization model of multi-layer
Underground multi-layer cavern is a key component in the compressed air energy storage (CAES) engineering and its optimal design is of vital
[PDF] Preliminary long-term stability criteria for compressed air energy storage caverns
Air storage caverns, which are an essential and integral component of a CAES plant, should be designed and operated so as to perform satisfactorily over the intended life of the overall facility. It follows that the long-term ''''stability'''' of air storage caverns must be considered as a primary concern in projecting the satisfactory operation of CAES
Characterizing excavation damaged zone and stability of pressurized lined rock caverns for underground compressed air energy storage
Characterizing excavation damaged zone and stability of pressurized lined rock caverns for underground compressed air energy storage. / Kim, Hyung Mok ; Rutqvist, Jonny; Jeong, Ju Hwan et al. In: Rock Mechanics and Rock Engineering, Vol.
Stability analysis for compressed air energy storage cavern with
The long-term stability of a lined rock cavern (LRC) for underground compressed air energy storage (CAES) is investigated using a thermo-mechanical
[PDF] Geotechnical issues and guidelines for storage of compressed air in excavated hard rock caverns
The results of a literature survey on the stability of excavated hard rock caverns are presented. The objective of the study was to develop geotechnical criteria for the design of compressed air energy storage (CAES) caverns in hard rock formations. These criteria involve geologic, hydrological, geochemical, geothermal, and in situ stress state
Choice of hydrogen energy storage in salt caverns and horizontal cavern
If the salt mines occupied by salt mining, gas storage and compressed air energy storage are removed, assuming that the standard requirements for UHS reservoir construction are the same as those for gas storage, then there should be few salt strata meeting the geological conditions for UHS cavern construction, which will lead to
Compressed Air Energy Storage in Underground Formations
A CAES power plant consists of a storage space for the air and a power plant with motor compressor and turbine generator units. Although the storage of compressed air on the surface is possible, for example, in spherical and pipe storage systems, or in gasometers, these have much lower storage capacities than
Failure Monitoring and Leakage Detection for Underground Storage of Compressed Air Energy in Lined Rock Caverns
Underground compressed air energy storage (CAES) in lined rock caverns (LRCs) provides a promising solution for storing energy on a large scale. One of the essential issues facing underground CAES implementation is the risk of air leakage from the storage caverns. Compressed air may leak through an initial defect in the
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