Compressed air energy storage blasting

What is compressed air energy storage?

Compressed air energy storage (CAES) is one of large-scale energy storage technologies, which can provide a buffer bank between the usage and production of renewable energy in temporal and spatial domains . Further, the surplus electricity in power grids can be also stored at a low cost when the supply is greater than the demand.

How stable is a lined rock cavern for underground compressed air energy storage?

The long-term stability of a lined rock cavern (LRC) for underground compressed air energy storage is investigated using a thermo-mechanical (TM) damage model. The numerical model is implemented in COMSOL Multiphysics, and TM modeling is verified by the existing analytical solution in the case of no damage.

What is large-scale compressed air energy storage?

Large-scale compressed air energy storage (CAES) technology is regarded as an effective way to alleviate the instability of electricity generated from renewable sources such as wind and solar power, which involves the expensive construction of underground caverns to store highly pressurized and high-temperature compressed air.

Does a lined rock cavern contain a weak interlayer during blasting?

To evaluate the stability of a lined rock cavern (LRC) for compressed air energy storage (CAES) containing a weak interlayer during blasting in the adjacent cavern, a newly excavated tunnel-type LRC was taken as the research object.

What are the different types of compressed air energy storage (CAES)?

Figure 1. Various options for compressed air energy storage (CAES). PA-CAES: Porous Aquifer-CAES, DR -CAES: Depleted Reservoir CAES, CW-CAES: Cased Wellbore-CAES. Note: this figure is not scaled. Figure 2. A sealed mine adit as a potential pressure vessel. Note - CA: compressed air, RC: reinforced

Does blasting affect the LRC for CAEs containing a weak interlayer?

Similar model tests for influences of blasting in the adjacent cavern on the LRC for CAES containing a weak interlayer were designed. The dynamic responses and deformation characteristics of the LRC for CAES under joint action of factors including the gas storage pressure, weak interlayer, and blast load were analyzed.