Research on Reuse of Abandoned Roadway in Coal Mine Based on the Compressed Air Energy Storage Technology
In this paper,the reuse of abandoned roadway in coal mine as the compressed air storage of compressed air energy storage( CAES) power station was studied. And taking Xuzhou Quantai coal mine as an example,a study on CAES is made. The results show that combining abandoned roadway in coal mine,CAES technology and the price difference between peak and valley electricity together organically,not only the secondary utilization of abandoned roadway in coal mine can be realized,but also a enormous social benefits brought by peak load regulation of3000 MW power system can be achieved as well as a huge economic profits of 225,200 RMB / hour can be obtained,the investment recovery time of the project is 8. 5 years,the safety rate of the project is 88. 28%. The study proved that the combination of abandoned roadway in coal mine and CAES technology is feasibility in technique and economy.