COMBINED CYCLE SYSTEM DESIGN AND CONSTRUCTION I

The objective of this course, in the gas turbine series, is to present the main construction and design features of gas turbines as used for power generation. The course presents the following concepts and applies them to day to day work activities:

• The gas-turbine cycle

• Typical values of temperature and pressure « through cycle »

• Single shaft and two shaft arrangements

• Exhaust heat recovery

• Axial flow and centrifugal flow compressors

• Effect of pressure ratio on efficiency

• Variable inlet guide vanes

• Combustor arrangements

• Combustion air, and secondary air

• Factors affecting air temperature rise through the combustion section

• Control of gas turbine output

• Combustion igniters, and flame detectors

• Water and steam injection

• Distribution of turbine energy

• Gas turbine efficiency

• Regenerative heat exchangers

• Turbine reheat cycle

• Turbine blade cooling

• Turbine stage seals

• Turbine rotor assembly and stator assembly

• Exhaust frame arrangements

• Gas-turbine starting arrangements

• Accessory gear box drive to auxiliaries

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