General Electric Technology Gmbh

Ansaldo Energia Switzerland Ag

Alstom Technology Limited

Ansaldo Energia IP UK Limited

Wolfgang Lang

Jürgen Gerhard Hoffmann

Juergen Gerhard Hoffmann

Hanspeter Zinn

Axel Haerms

Heinz Bollhalder

Xabier Antonanzas

The disclosure relates to a method for determining a temperature in a pressurized flow path of a gas turbine comprising the steps of sending an acoustic signal from an acoustic signal emitting transducer across a section of the pressurized flow path, detecting the acoustic signal with a receiving transducer, measuring the time needed by the acoustic signal to travel from the acoustic signal emitting transducer to the receiving transducer, calculating the speed of sound, and calculating the temperature as a function of the speed of sound, the heat capacity ratio (&#x25a1;) and a specific gas constant (R) of the gas flowing in the pressurized flow path. Besides the method, a gas turbine with a processor and transducers arranged to carry out such a method is disclosed.

Gas turbine temperature measurement

A control system for at least one of steam turbines, gas turbines or power plants includes a sensor system configured to monitor predefined operating parameters, the sensor system including redundant sensors. A central processor arrangement of the control system has an input side configured to receive measurement data from the sensor system and an output side configured to communicate with operation control elements of the turbines or power plants. A sensor side processor circuit is assigned at least to the redundant sensors, the processor circuit being configured to continuously check the sensors for error-free operation, to protect or block the input side of the central processor arrangement from erroneous signals, and to only respectively forward or further process signals from a sensor that has been identified as error-free in one channel.

Control system

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Lauchringen, Germany

Wolfgang Lang