Patent ID: 9551279
Date: 2017-01-24
CPC Classifications: F01K,F02C,F05D,Y02E

Claim:
1. A method for operating a compressed air energy storage system, comprising: compressing a process gas with a compressor train to produce a compressed process gas; directing the compressed process gas to a compressed gas storage unit and storing the compressed process gas in the compressed gas storage unit; releasing the compressed process gas from the compressed gas storage unit to a heat recovery unit via a feed line; heating the compressed process gas in the heat recovery unit and directing the heated compressed process gas to an expansion assembly to generate a power output; feeding feed water from a feed water source to the heat recovery unit and heating the feed water to produce steam; introducing the steam from the heat recovery unit to a combustion turbine assembly; and heating the heat recovery unit with the combustion turbine assembly via an exhaust line.