Compressed air energy storage (CAES) in underground mine tunnels using the technique of lined rock cavern (LRC) provides a promising solution to large-scale energy storage. A coupled thermodynamic and thermomechanical modelling for CAES in mine tunnels was implemented. Thermodynamic analysis of air during CAES operation was carried out.
Additionally, Rotta Loria (2021) evaluated the potential of energy tunnels as underground thermal energy storage systems and discovered that storage efficiencies could reach up to 70%.
Regarding energy tunnels, Barla et al. (2016) found that increasing the fluid flow rate improves thermal yield, but with a non-linear trend and a threshold of about 10 L/min (Re ≈8,000) as the optimum flow rate.
Nevertheless, it is evident that energy tunnels have emerged as a promising and sustainable technology for reducing energy consumption and the operational costs of heating and cooling in the built environment. Xiangdong Dai: Conceptualization, Methodology, Visualization, Writing – original draft.
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Compressed air energy storage (CAES) in underground mine tunnels using the technique of lined rock cavern (LRC) provides a promising solution to large-scale energy storage.
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