Gas turbine comprising thermal energy store, method for operating same, and method for modifying same
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsMatthias Migl, Ronald Schwarz, Denis Tschetschik
Life of this patent
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Abstract
An energy generation plant in which the exhaust gas from a gas turbine is guided into a thermal energy store, wherein the thermal energy store can be used for various purposes. The energy generation plant has at least one gas turbine having an exhaust gas apparatus, at least one generator, at least one thermal energy store, wherein the generator can be driven by the gas turbine, wherein the hot exhaust gas from the gas turbine is passed directly to a thermal energy store via the exhaust gas apparatus, wherein the thermal energy from the thermal energy store can be used to generate power.
Claims23
An energy generation plant, comprising:
- a gas turbine comprising an exhaust gas apparatus,
- a generator,
- a thermal energy store,
- wherein the generator is adapted to be driven by the gas turbine,
- wherein hot exhaust gas from the gas turbine is adapted to be passed directly to the thermal energy store via the exhaust gas apparatus,
- a power generating apparatus for using thermal energy from the thermal energy store to generate power, and
- a circuit configured to receive air from the thermal energy store that has been cooled in the power generating apparatus into cold air, to deliver the cold air to the thermal energy store, to heat the cold air into heated air in the thermal energy store, and to return the heated air to the power generating apparatus.
A method for operating an energy generation plant, at least comprising a gas turbine comprising an exhaust gas apparatus, a generator, and a thermal energy store, the method comprising:
- driving the generator by the gas turbine,
- guiding hot exhaust gas from the gas turbine via the exhaust gas apparatus directly into the thermal energy store,
- using only the hot exhaust gas from the gas turbine to heat the thermal energy store,
- using thermal energy from the thermal energy store at least to generate power via a power generating apparatus, and
- receiving air from the thermal energy store that has been cooled in the power generating apparatus into cold air, delivering the cold air to the thermal energy store, heating the cold air into heated air in the thermal energy store, and returning the heated air to the power generating apparatus.
A method for modifying an existing energy generation plant, the method comprising:
- adding a thermal energy store configured to be heated by hot exhaust gas from a gas turbine of the existing energy generation plant;
- and
- adding a circuit configured to receive air from the thermal energy store that has been cooled in a power generating apparatus of the existing energy generation plant into cold air, to deliver the cold air to the thermal energy store, to heat the cold air into heated air in the thermal energy store, and to return the heated air to the power generating apparatus.
Dependencies are inferred from the claim text.