Siemens Gas Turbine

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This module of Basic Gas Turbines will introduce the 

delegate to the various major components of the gas 

turbine.

The delegate will understand the need of the following 

components and will be familiar with their use:-

•The Air Inlet.

•The Compressor, VGV’s & Interstage Bleed Valves (BOV).

•The Combustion System & Fuel Burners.

•The Compressor Turbine section.

•The Power Turbine.

•The Exhaust System.

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What is stall? 

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• A Stall is the aero dynamic breakdown of the airflow within the Compressor section of the Gas Turbine.Forward air flow is disrupted and becomes unstable.The volume of air entering the inlet stages of the Compressor far exceeds the amount leaving the Compressor exit.

• The result of this may be a violent reversal of air flow within the Compressor itself.This reversal of air flow is called a Surge.

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