1Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
2University of Chinese Academy of Sciences, Beijing, China
Compared with compressed air energy storage, liquid air energy storage has the advantage of higher energy density, smaller storage volume. In this study, it describes a novel liquid air energy storage system, the air is liquefied and stored with high pressure. The system uses a regenerator for air liquefaction and energy is recovered through throttled liquid air, so extra refrigeration process is unnecessary. Thermodynamic analysis of the system's performance is also presented. The results show that the efficiency of liquid air energy storage system is high and there is enough space for optimization with different working pressure.
