A multi-objective optimization approach for a fault geothermal system based on response surface method

Ye, Zhiwei; Wang, J.G.; Yang, Jiajie

doi:10.1016/j.geothermics.2023.102887

Cited by 2 publications

(1 citation statement)

References 43 publications

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“…With the continuous growth of global energy demand and concerns about climate change, the development and utilization of renewable energy have become key strategys for global energy transformation [1]. Renewable energy sources, such as wind energy [2], solar energy [3], and geothermal energy [4][5][6], are gradually occupying important positions in energy supply due to their clean and sustainable characteristics. However, these renewable energy sources have unpredictable, intermittent, and fluctuation characteristics [7], which pose great challenges to the stable operation of the power system.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Transient Response of Compressed Air Energy Storage in the Interaction between Gas Storage Chambers and Horseshoe-Shaped Tunnels in an Abandoned Coal Mine

Li,

Sun

et al. 2024

Energies

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This study focuses on the renovation and construction of compressed air energy storage chambers within abandoned coal mine roadways. The transient mechanical responses of underground gas storage chambers under a cycle are analyzed through thermal-solid coupling simulations. These simulations highlight changes in key parameters such as displacement, stress, and temperature within the chamber group during the loading and unloading processes of compressed air energy storage. It is found that within a cycle, the small circular chamber experiences the most significant deformation, with an average peak displacement of 0.24 mm, followed by the large circular chamber and horseshoe-shaped tunnels. The small circular chamber exhibits maximum tensile and compressive stresses. Therefore, special attention in engineering practice should be paid to the long-term safety and stability of small circular tunnels, and the stability of horseshoe-shaped tunnels should be also carefully considered. The findings from this study offer some insights for theoretical support and practical implementation in the planning, design, construction, and operation of high-pressure underground gas storage chambers for compressed air energy storage.

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