Research Article

The Fracture Influence on the Energy Loss of Compressed Air Energy Storage in Hard Rock

Table 2

Efficiency comparison under different conditions in the 12th day.

The 12th dayInput energy (MJ)Output energy (MJ)Energy loss (MJ)Efficiency

Intact rockMass control189.10183.016.0996.78%
Air supplement control195.25183.4811.7793.97%

Rock with single crackMass control189.10182.466.6496.49%
Air supplement control195.25183.2811.9793.87%