Patent ID: 9003763
Filing Date: 2015-04-14
Classification: F01K,F02C,Y02E

Abstract:
1. A method comprising: providing a thermal power plant operating on a steam Rankine cycle and including a boiler, a steam turbine, and steam feed water from a condenser and configured to be heated by steam bled from the steam turbine; providing energy from an external energy source to a gas compression process; storing compressed gas from the gas compression process in a compressed gas storage unit; communicating thermal energy from the gas compression process to heat the steam feed water, wherein the thermal energy is communicated from an aftercooler of a gas compressor; flowing the steam feed water to the boiler; providing an existing gas turbine of single shaft design that has been modified to remove compressor blades to obtain a compressorless gas turbine; flowing compressed gas from the gas compression process to a turbine comprising an air turbine in communication with the compressorless gas turbine; and heating the compressed gas with a combustion product of an output of the compressorless gas turbine.