SEQUENTIAL COMBUSTION ARRANGEMENT WITH COOLING GAS FOR DILUTION

The invention refers to a gas turbine (1) with a sequential combustor arrangement (4) comprising a first combustor with a first burner (106) for admitting a first fuel (28) into a combustor inlet gas during operation and a first combustion chamber (101) for burning the first fuel (28), a dilution ga...

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Bibliographische Detailangaben
Hauptverfasser:	JUERGEN GERHARD HOFFMANN, WILHELM REITER
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	The invention refers to a gas turbine (1) with a sequential combustor arrangement (4) comprising a first combustor with a first burner (106) for admitting a first fuel (28) into a combustor inlet gas during operation and a first combustion chamber (101) for burning the first fuel (28), a dilution gas admixer (27) for admixing a dilution gas (33) to the first combustor combustion products (35) leaving the first combustion chamber (101), a second burner (103) for admixing a second fuel (29) and a second combustion chamber (102). To assure a temperature profile after the dilution gas admixer (27) and to increase the gas turbine's (1) power and efficiency a vane (11) and/or blade (10) of the turbine (5) has a closed loop cooling. The outlet of the closed loop cooling (17) is connected to the dilution gas admixer (27) for admixing the heated cooling gas leaving the vane (11) and/or blade (10) into the first combustor combustion products (35). The disclosure further refers to method for operating a gas turbine (1)