| 摘要 |
The present disclosure relates to a method of operating a combined cycle power generating system (28) comprising combusting a fuel in a gas turbine (1), generating electricity and a steam (2) of flue gas, producing a stream (15) of steam in a heat recovery steam generator (3), producing a stream (10) of concentrated carbon dioxide using an absorption unit (5) and a solvent regeneration unit (7), forwarding the steam stream (15) to a steam turbine (16) and transferring the heat energy in the stream (17) exiting the steam turbine (16 ) to the solvent regeneration unit (7), and a thermal storage unit (22) for storing heat energy, the method further comprising: operating a thermal storage unit (22), at least for a period of time, in a heat storing mode, in which a stream (20) of steam from the stream (17) exiting the steam turbine (16) is condensed and transfers heat energy to heat storing means in the thermal storage unit (22), and operating the thermal storage unit (22), at least for a period of time, in a heat releasing mode, in which heat energy stored in the thermal storage unit (22) is transferred to the solvent regeneration unit (7). The present disclosure further relates to a combined cycle power generating system (28) as well as a combined cycle power plant comprising such a system. |
