Variable Modes of Operation of Combined-Cycle Gas-Turbine Units

The available capacity of gas-turbine units (GTU) and combined-cycle gas-turbine (CCGT) units varies significantly with the outside air temperature. Its changes also affect the operating load range of the GTU-the minimum safe load increases with decrease in the outside temperature. Experimental data...

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Bibliographic Details
Published in:Power technology and engineering 2021-11, Vol.55 (4), p.607-612
Main Authors: Olkhovski, G. G., Ageev, A. V., Rozhkov, A. D.
Format: Article
Language:English
Subjects:
Air temperature
Combined cycle power generation
Compressed air
Electrical Machines and Networks
Energy
Energy Systems
Foundations
Gas turbines
Geoengineering
Hydraulics
Power Electronics
Renewable and Green Energy
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Summary:The available capacity of gas-turbine units (GTU) and combined-cycle gas-turbine (CCGT) units varies significantly with the outside air temperature. Its changes also affect the operating load range of the GTU-the minimum safe load increases with decrease in the outside temperature. Experimental data are analyzed that indicate the possibility to substantially reduce the minimum safe load of CCGT units by bypassing some of the compressed air to the compressor inlet during frost periods that are not uncommon in our country.
ISSN:1570-145X
1570-1468
DOI:10.1007/s10749-021-01405-0