Siemens Aktiengesellschaft

Siemens Akteingesellschaft

Gerhard Hülsemann

Mirko Milazar

Tobias Buchal

Volker Vosberg

Giuseppe Gaio

Armin Hülfenhaus

Arnd Reichert

Dieter Minninger

Nicolas Savilius

Harald Nimptsch

Heinrich Pütz

Kang Qian

Michael Neubauer

Hajrudin Ceric

Frank Günther

Gabriel Jungnickel-Marques

Stefan Wanz

The invention relates a method for improving the hot-starting behavior of a turbomachine. By virtue of the setting of a radial gap formed between a brushing edge of a blade profile and a guide face lying opposite this, in which setting a guide ring forming the guide face can be acted upon with a coolant, the hot-starting behavior can be improved, in that the guide ring is cooled before the start of the machine.

Method for setting a radial gap of an axial-throughflow turbomachine and compressor

The invention relates to a method for cooling a gas turbine comprising a rotor, said method being carried out after the operation of the gas turbine and whereby the rotor is driven at least intermittently during a cooling phase at a reduced nominal speed. To provide a gas turbine with a reduced down time, a liquid is introduced at least intermittently into the air stream upstream of the compressor during the cooling phase.

Liquid injection in a gas turbine during a cooling down phase

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Oberhausen, Germany

Gerhard Hülsemann