Compared with the conventional compressed air energy storage system

the non afterburning compressed air energy storage system adds the heat storage link

removes the combustion link

and does not need fossil fuel supplement

which realizes energy conservation and environmental protection and is the recommended compressed air energy storage system in China at present

In this paper

the first 500 kW non afterburning compressed air energy storage power generation demonstration system in China is modeled and simulated with professional software

and the compression process and expansion process are simulated. The correctness of the simulation model is verified by comparing the simulation data with the experimental data. Then

the energy consumption of each component of the 500 kW non afterburning compressed air energy storage system is analyzed by means of exergy analysis method. The results show that

the exergy loss in expansion process is the largest and that in heat exchange process is the smallest

which points out the system optimization direction.