Siemens Energy Global Gmbh & Co. Kg

Siemens Aktiengesellschaft

Matthias Migl

Denis Tschetschik

Erich Schmid

Ronald Schwarz

Edwin Gobrecht

Matthias Heue

Michael Schöttler

Marc Borowski

Georg Peters

Christian Hermsdorf

A power generation installation in which exhaust gas from a gas turbine is fed to a thermal energy accumulator, wherein energy in the thermal energy accumulator can be employed for various purposes, a method for operating such an installation, and a method for the modification of existing installations. The thermal energy accumulator has sufficient capacity to permit the operation of a steam turbine in isolation for the storage of thermal energy from exhaust gas in the thermal energy accumulator.

System having thermal accumulator, method for operating same, and method for modifying same

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.

Gas turbine comprising thermal energy store, method for operating same, and method for modifying same

A power plant having a gas turbine and having a heat recovery steam generator installed downstream of the gas turbine in the direction of flow of an exhaust gas, wherein the heat recovery steam generator includes heating surfaces of a high pressure section, of an intermediate pressure section and of a low pressure section, wherein an exhaust gas recirculation line branches from the heat recovery steam generator downstream of an evaporator in the flow direction of an exhaust gas in the high pressure section and opens again into the heat recovery steam generator upstream of the heating surfaces. A blower is arranged in the exhaust gas recirculation line, with a steam feed opening into the exhaust gas recirculation line downstream of the blower in the direction of flow of a recirculated exhaust gas. A method operates a power plant of this kind.

Steam injection into the exhaust gas recirculation line of a gas and steam turbine power plant

A method for operating a combined cycle power plant, wherein the combined cycle power plant has a gas turbine and a steam turbine and also a shutting-down device, and wherein, for shutting down the gas turbine and the steam turbine, the gas turbine and the steam turbine are operated within a time window that extends from the beginning of the shutting-down procedure at a first time to the falling of the steam temperature to a lower limit value at a second time by the shutting device in such a way that the gas turbine and the steam turbine are relieved substantially at the same time and the block power falls to zero, thermal energy that is stored in the combined cycle power plant preventing immediate falling of a steam temperature to operation below a minimum power output of the gas turbine within the time window.

Method for shutting down a gas turbine and a steam turbine of a combined cycle power plant at the same time

A method is provided for connecting at least one further steam generator to a first steam generator in a power plant. The power plant includes at least two steam generators and a steam turbine, in which a fluid used to drive the steam turbine is conveyed in a fluid circuit having a plurality of steam systems. The steam systems are assigned individual steam generators and are able to be separated from one another by shut-off valves. The fluid of at least the first steam generator is connected to the steam turbine. The method involves opening the shut-off valve of at least one first steam system of the at least one further steam generator before the steam of the at least one further steam generator has reached approximately the same steam parameters as the steam of the first steam generator, so that steam can flow into the further steam generator.

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Munich, Germany

Matthias Migl