Compressed air energy storage enhanced by gravity

Scientists in China have simulated an advanced adiabatic compressed air energy storage, to which they added an elastic airbag with a heavy load situated above it. The energy, exergy, and economic analysis of the system showed that, due to the constant weight of the heavy load, the airbag's pressure level remains unaltered during operation. A research group from China's Northeast Electric Power University has proposed a novel advanced adiabatic compressed air energy storage (AA-CAES) system. The proposed system utilizes a heavy load, an elastic airbag, and an abandoned vertical mine shaft, transforming ...

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